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1Z0-058 Oracle true Application Clusters 11g(R) Release 2 and Grid Infrastructure Administration

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1Z0-058 exam Dumps Source : Oracle true Application Clusters 11g(R) Release 2 and Grid Infrastructure Administration

Test Code : 1Z0-058
Test appellation : Oracle true Application Clusters 11g(R) Release 2 and Grid Infrastructure Administration
Vendor appellation : Oracle
: 139 true Questions

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Oracle Oracle true Application Clusters

Oracle Database 12c unlock 2 true application Clusters guide: ideas, Administration, Tuning & Troubleshooting | killexams.com true Questions and Pass4sure dumps

Synopsis

grasp Oracle Database 12c free up 2 true utility Clusters with this complete, absolutely up-to-date guideNow that you would live able to maintain a dynamic enterprise computing infrastructure with expert guide from an Oracle ACE. Oracle Database 12c free up 2 actual application Clusters handbook: concepts, Administration, Tuning, and Troubleshooting has been completely revised and up to date to cowl the newest tools and contours. learn how to plot together your hardware, deploy Oracle loyal application Clusters, and integrate seamless failover protection. Troubleshooting, performance tuning, and software building are moreover discussed in this comprehensive Oracle Press e-book.*install and configure Oracle Database 12c liberate 2 loyal application Clusters*Configure and manage disk agencies the usage of Oracle automated Storage administration*Work with services, balloting disks, and Oracle Clusterware repository*Diagnose efficiency complications with Oracle Wait Interface*seem to live beneath the hood of Cache Fusion and international resource directory operations*discover the inside workings of backup and healing in Oracle true utility Clusters*make exercise of workload balancing and transparent utility Failover*Troubleshoot Oracle Clusterware the exercise of advanced diagnostics*advance custom Oracle loyal utility Clusters purposes

k. Gopalakrishnan (Gopal) is an award-successful coauthor ("Oracle writer of the year 2005"-Oracle journal) of Oracle Wait Interface (Oracle Press). He additionally authored Oracle Database 10g loyal application Clusters additionally from Oracle Press (Nov 2006). He has posted articles in quite a few international Magazines and is recognized as one of the main database efficiency tuning experts on earth. Oracle know-how network additionally acknowledges him as an Oracle ACE. Gopal has worked with a few of the largest and busiest databases on the planet and has abysmal experience within the performance management and tuning of very titanic on-line transactional databases. Sam R. Alapati is an skilled Oracle DBA who holds the Oracle OCP DBA (11g) certification and the Hewlett-Packard UNIX device Administrator certification. He presently manages Oracle databases at the Boy Scouts of Americas countrywide office in Irving, Texas. prior to now, Sam labored for AMR Holdings (Sabre) and the Blanch company in Dallas. Sam become a Senior most well-known consultant for Oracle corporation in manhattan, through which skill he worked at NBC and Lehman Brothers. moreover being knowledgeable Oracle database administrator, Sam has moreover taught Oracle DBA courses for many students. Sam taught school degree lessons at Kansas State tuition, university of Texas at Austin, and Rutgers university.

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Oracle Clusterware and Oracle actual application Clusters | killexams.com true Questions and Pass4sure dumps

This chapter introduces Oracle Clusterware and Oracle loyal application Clusters (Oracle RAC) by means of describing these products as well as the way to set up, administer, and set up them. This chapter describes Oracle Clusterware and Oracle RAC architectures as neatly because the software and hardware components for both of these items. This chapter additionally in brief describes workload administration, features, and high availability for each single-instance Oracle databases and Oracle RAC environments. This chapter contains birthright here subject matters:

Oracle Clusterware and Oracle true utility Clusters

A cluster includes numerous interconnected computer systems or servers that appear like they're one server to conclude clients and functions. Oracle Database 10g precise software Clusters (Oracle RAC) enables the clustering of the Oracle Database. Oracle RAC uses Oracle Clusterware for the infrastructure to bind distinctive servers so that they function as a single equipment.

Oracle Clusterware is a portable cluster management respond it truly is integrated with the Oracle database. The Oracle Clusterware is additionally a required portion for using Oracle RAC. in addition, Oracle Clusterware permits both single-illustration Oracle databases and Oracle RAC databases to design exercise of the Oracle inordinate availability infrastructure. The Oracle Clusterware allows you to create a clustered pool of storage for exercise with the aid of any combination of single-example and Oracle RAC databases.

Oracle Clusterware is the best clusterware that you requisite for many structures on which Oracle RAC operates. that you could moreover exercise clusterware from different carriers if the clusterware is certified for Oracle RAC.

Single-instance Oracle databases possess a one-to-one relationship between the Oracle database and the example. Oracle RAC environments, youngsters, possess a one-to-many relationship between the database and circumstances. In Oracle RAC environments, the cluster database cases access one database. The mixed processing power of the diverse servers can supply greater throughput and scalability than is purchasable from a single server. Oracle RAC is the Oracle Database option that gives a single gadget photograph for varied servers to access one Oracle database. In Oracle RAC, every Oracle sample constantly runs on a separate server.

Oracle RAC is a unique expertise that offers inordinate availability and scalability for bar no one software types. The Oracle RAC infrastructure is moreover a key constituent for implementing the Oracle traffic grid computing architecture. Having numerous situations access a single database prevents the server from being a single factor of failure. Oracle RAC makes it viable for you to mingle smaller commodity servers into a cluster to create scalable environments that support mission vital enterprise applications. purposes that you just installation on Oracle RAC databases can operate devoid of code adjustments.

The Oracle Clusterware structure and Oracle Clusterware Processing

The Oracle Clusterware is software that when plot in on servers running the identical working gadget, allows the servers to live sure together to function as in the event that they possess been one server. The Oracle Clusterware requires two clusterware add-ons: a balloting disk to listing node membership tips and the Oracle Cluster Registry (OCR) to checklist cluster configuration tips. The balloting disk and the OCR must stay on shared storage. The Oracle Clusterware requires that each and every node live related to a personal community by means of a personal interconnect.

The private interconnect that Oracle Clusterware requires is a separate community that you configure between the cluster nodes. This interconnect, which is required by means of Oracle RAC, can moreover live the identical community that the clusterware makes exercise of, but the interconnect may still not live purchasable via nodes that are not a portion of the cluster.

Oracle recommends that you just configure a redundant interconnect to steer transparent of the interconnect from being a single constituent of failure. Oracle moreover recommends that you simply exercise user Datagram Protocol (UDP) on a Gigabit Ethernet on your cluster interconnect. Crossover cables don't appear to live supported to live used with Oracle Clusterware or Oracle RAC databases.

The Oracle Clusterware manages node membership and prevents slice up brain syndrome wherein two or more cases attempt to control the database. this may occur in circumstances the plot there is a raze in communique between nodes in the course of the interconnect.

The Oracle Clusterware architecture supports inordinate availability by means of automatically restarting stopped accessories. The Oracle Clusterware can automatically re-delivery a node to avoid problems with that node from affecting the provision of the ease of the Oracle RAC ambiance. In an Oracle RAC environment, bar no one Oracle strategies are below the handle of the Oracle clusterware. The Oracle Clusterware additionally provides an application programming interface (API) that allows you to manage different Oracle methods with Oracle Clusterware.

Oracle Clusterware utility component Processing particulars

The Oracle Clusterware contains several history tactics that facilitate cluster operations. The Cluster Synchronization service (CSS), adventure administration (EVM), and Oracle Cluster add-ons speak with different cluster portion layers in the other cases in the identical cluster database ambiance. These components are additionally the leading communique hyperlinks between the Oracle Clusterware high availability add-ons and the Oracle Database. moreover, these components computer screen and manage database operations.

right here record describes the capabilities of one of the predominant Oracle Clusterware add-ons. This listing comprises these components which might live procedures on Unix and Linux working techniques or services on windows.

word:

On windows-primarily based working programs, most of the accessories are threads of the Oracle technique in its plot of separate tactics.
  • Cluster Synchronization services (CSS)—Manages the cluster configuration by using controlling which nodes are participants of the cluster and by notifying members when a node joins or leaves the cluster. if you are the exercise of third-party clusterware, then the css process interfaces together with your clusterware to control node membership counsel.

  • Cluster able functions (CRS)—The primary program for managing inordinate availability operations inside a cluster. the ease that the crs system manages is called a cluster resource which is usually a database, an instance, a service, a Listener, a digital IP (VIP) handle, an software process, etc. The crs process manages cluster supplies in line with the resource's configuration tips that is stored in the OCR. This includes delivery, cease, video array and failover operations. The crs manner generates movements when a resource reputation alterations. in case you possess installed Oracle RAC, crs screens the Oracle illustration, Listener, and so forth, and automatically restarts these add-ons when a failure occurs. with the aid of default, the crs procedure makes five attempts to restart a resource and then does not design additional restart attempts if the aid does not restart.

  • adventure administration (EVM)—A history process that publishes pursuits that crs creates.

  • Oracle Notification service (ONS)—A publish and subscribe carrier for speaking quick utility Notification (FAN) pursuits.

  • RACG—Extends clusterware to aid Oracle-specific requirements and complicated supplies. Runs server callout scripts when FAN hobbies turn up.

  • system video array Daemon (OPROCD)—This system is locked in reminiscence to array screen the cluster and supply I/O fencing. OPROCD performs its assess, stops operating, and if the awaken is beyond the expected time, then OPROCD resets the processor and reboots the node. An OPROCD failure effects in Oracle Clusterware restarting the node. OPROCD makes exercise of the hangcheck timer on Linux structures.

  • In the following desk, if a system has a (r) beside it, then the process runs because the root user. otherwise the technique runs because the oracle consumer.

    table 1-1 checklist of processes and windows functions associated with Oracle Clusterware

    Oracle Clusterware element Linux/Unix technique windows facilitiesWindows procedures

    method array screen Daemon

    oprocd (r)

    OraFenceService

    RACG

    racgmain, racgimon

    racgmain.exe racgimon.exe

    Oracle Notification provider (ONS)

    ons

    ons.exe

    experience supervisor

    evmd (r), evmd.bin, evmlogger

    OracleEVMService

    evmlogger.exe, evmd.exe

    Cluster competent

    crsd.bin (r)

    OracleCRSService

    crsd.exe

    Cluster Synchronization functions

    init.cssd (r), ocssd (r), ocssd.bin

    OracleCSService

    ocssd.exe

    The Oracle Clusterware software accessories

    When Oracle Clusterware operates, a few platform-particular tactics or functions will even live working on each and every node in the cluster to embolden Oracle Clusterware. The Oracle Clusterware platform-particular UNIX-primarily based approaches and windows-based mostly services are described below birthright here headings:

    Oracle Clusterware methods on UNIX-based methods

    The Oracle Clusterware strategies on UNIX-primarily based programs are:

  • crsd—Performs high availability recovery and management operations similar to retaining the OCR and managing application substances. This procedure runs as the root consumer, or by using a person within the admin neighborhood on Mac OS X-primarily based systems. This system restarts automatically upon failure.

  • evmd—adventure manager daemon. This system moreover starts the racgevt procedure to control FAN server callouts.

  • ocssd—Manages cluster node membership and runs because the oracle consumer; failure of this process consequences in cluster restart.

  • oprocd—method array screen for the cluster. word that this system simplest seems on platforms that result not exercise dealer clusterware with Oracle Clusterware.

  • note:

    Oracle RAC on Linux systems can possess assorted threads that appear as separate approaches with separate technique identifiers. Oracle Clusterware services on home windows-based mostly methods

    The Oracle Clusterware capabilities on home windows-primarily based systems are:

  • OracleCRService—Performs high availability restoration and administration operations comparable to retaining the OCR and managing software substances. This system runs as the root person, or with the aid of a user within the admin community on Mac OS X-primarily based techniques. This manner restarts instantly upon failure.

  • OracleCSService—Manages cluster node membership and runs as oracle consumer; failure of this system outcomes in cluster restart.

  • OracleEVMService—event manager daemon. This system moreover starts the racgevt system to maneuver FAN server callouts.

  • OraFenceService—manner monitor for the cluster. word that this manner best looks on platforms that don't exercise vendor clusterware with Oracle Clusterware.

  • The Oracle precise application Clusters structure and Oracle loyal software Clusters Processing

    An Oracle RAC database is a logically or corporeal shared every microscopic thing database. bar no one datafiles, control information, PFILEs, and redo log info in Oracle RAC environments requisite to stay on cluster-aware shared disks so that bar no one the cluster database circumstances can access them. bar no one of the situations must moreover share the identical interconnect. in addition, Oracle RAC databases can share the equal interconnect that Oracle Clusterware makes exercise of.

    because an Oracle RAC database makes exercise of a shared everything architecture, Oracle RAC requires cluster-aware storage for bar no one database information. it's your alternative as to a way to configure your disk, however you requisite to exercise a supported cluster-mindful storage answer. Oracle Database 10g offers computerized Storage administration (ASM), which is the suggested respond to manage your disk. although you might moreover additionally exercise a cluster-conscious extent manager or a cluster file device (no longer required). In Oracle RAC, the Oracle Database application manages disk entry and the Oracle utility is certified for exercise on plenty of storage architectures. An Oracle RAC database can possess up to 100 instances. counting on your platform, you can exercise here file storage alternate options for Oracle RAC:

  • ASM, which Oracle recommends

  • Oracle Cluster File system (OCFS), which is attainable for Linux and home windows systems, or a 3rd-celebration cluster file gadget that is licensed for Oracle RAC

  • A network file system

  • raw contraptions

  • Oracle RAC databases vary architecturally from Oracle RACsingle-illustration Oracle databases in that each and every Oracle RAC database instance moreover has:

    All nodes in an Oracle RAC ambiance requisite to hook up with a indigenous enviornment network (LAN) to enable users and applications to entry the database. functions should still exercise the Oracle Database features characteristic to connect with an Oracle database. functions permit you to outline suggestions and characteristics to manage how clients and purposes connect to database situations. These qualities consist of a different identify, workload balancing and failover alternate options, and inordinate availability characteristics. Oracle web capabilities allows the load balancing of software connections across the entire instances in an Oracle RAC database.

    clients can access an Oracle RAC database using a consumer-server configuration or via one or more core tiers, with or devoid of connection pooling. clients will moreover live DBAs, builders, software users, vigour clients, akin to records miners who create their own searches, and so on.

    Most public networks customarily exercise TCP/IP, but that you can exercise any supported hardware and software mixture. Oracle RAC database situations may moreover live accessed via a database's defined, default IP handle and through VIP addresses.

    be aware:

    don't to exercise the interconnect or the private network for user communique as a result of Cache Fusion makes exercise of the private interconnect for inter-illustration communications.

    apart from the node's host appellation and IP handle, you should additionally allocate a digital host appellation and an IP tackle to each node. The virtual host identify or VIP should live used to connect with the database example. for example, you might enter the digital host identify CRM in the tackle record of the tnsnames.ora file.

    A virtual IP address is an alternate public handle that customer connections exercise in its plot of the standard public IP handle. To configure VIP addresses, you requisite to reserve a spare IP tackle for every node that uses the identical subnet because the public network.

    If a node fails, then the node's VIP fails over to an extra node on which the VIP cannot accept connections. commonly, VIPs fail over when the node on which a VIP runs fails or if bar no one interfaces for the VIP fail or are disconnected from the network. valued clientele that try to connect with the VIP catch hold of a quick connection refused error as a substitute of anticipating TCP connect timeout messages. You configure VIP addresses within the tackle list on your database connection definition to permit connectivity. here portion describes the Oracle RAC software accessories in additional detail.

    The Oracle precise software Clusters utility add-ons

    Oracle RAC databases possess two or extra database instances that each and every include reminiscence structures and heritage tactics. An Oracle RAC database has the identical approaches and reminiscence buildings as a single-example Oracle database as well as further system and reminiscence constructions that are particular to Oracle RAC. any one illustration's database view is well-nigh just like every other instance's view within the identical Oracle RAC database; the view is a single apparatus image of the atmosphere.

    each illustration has a buffer cache in its system world enviornment (SGA). the usage of Cache Fusion, Oracle RAC environments logically mingle each instance's buffer cache to enable the situations to procedure information as if the statistics resided on a logically combined, single cache.

    note:

    The SGA dimension requirements for Oracle RAC are enhanced than the SGA requirements for single-instance Oracle databases due to Cache Fusion.

    To design sure that each Oracle RAC database illustration obtains the obstruct that it should fulfill a question or transaction, Oracle RAC situations exercise two tactics, the world Cache carrier (GCS) and the world Enqueue provider (GES). The GCS and GES hold information of the statuses of every statistics file and each cached obstruct the exercise of a global resource directory (GRD). The GRD contents are allotted across bar no one of the lively instances, which conveniently increases the size of the system world zone for an Oracle RAC example.

    After one sample caches data, some other illustration inside the identical cluster database can purchase a obstruct picture from yet another illustration within the identical database sooner than by way of analyzing the obstruct from disk. therefore, Cache Fusion moves latest blocks between instances instead of re-studying the blocks from disk. When a constant obstruct is required or a changed obstruct is required on a further instance, Cache Fusion transfers the obstruct photo without delay between the affected circumstances. Oracle RAC uses the inner most interconnect for inter-example conversation and obstruct transfers. The global Enqueue provider monitor and the sample Enqueue procedure manages access to Cache Fusion supplies in addition to enqueue recuperation processing.

    These Oracle RAC procedures and the GRD collaborate to permit Cache Fusion. The Oracle RAC methods and their identifiers are as follows:

  • LMS—world Cache carrier manner

  • LMD—global Enqueue service Daemon

  • LMON—world Enqueue carrier array screen

  • LCK0—example Enqueue method

  • if you exercise community attached Storage (NAS), then you are required to configure a 2d inner most community. access to this network is customarily managed by the seller's utility. The inner most network makes exercise of static IP addresses.

    be aware:

    many of the Oracle components that this portion describes are apart from the add-ons that are described for single-example Oracle databases in Oracle Database ideas. Oracle Clusterware components and high Availability

    in the event you combine Oracle Clusterware and Oracle RAC, you can achieve magnificent scalability and inordinate availability. The Oracle Clusterware achieves this the exercise of the accessories that this portion describes beneath here issues:

    The Oracle Clusterware vote casting Disk and Oracle Cluster Registry

    The Oracle Clusterware requires here two essential data:

  • voting Disk—Manages cluster membership by means of a health examine and arbitrates cluster possession among the many cases in case of community disasters. Oracle RAC uses the vote casting disk to investigate which instances are members of a cluster. The voting disk should reside on shared disk. for high availability, Oracle recommends that you possess several voting disks. The Oracle Clusterware permits diverse balloting disks however you possess to possess an abnormal variety of voting disks, reminiscent of three, 5, and the like. in case you define a single vote casting disk, then live sure you exercise external mirroring to give redundancy.

  • Oracle Cluster Registry (OCR)—keeps cluster configuration recommendation in addition to configuration recommendation about any cluster database inside the cluster. The OCR moreover manages suggestions about processes that Oracle Clusterware controls. The OCR outlets configuration information in a sequence of key-cost pairs inside a listing tree constitution. The OCR ought to dwell on shared disk it really is purchasable by way of bar no one of the nodes on your cluster. The Oracle Clusterware can multiplex the OCR and Oracle recommends that you simply exercise this feature to design sure cluster inordinate availability. that you would live able to substitute a failed OCR on-line, and you'll supersede the OCR through supported APIs similar to commercial enterprise supervisor, the Server control Utility (SRVCTL), or the Database Configuration coadjutant (DBCA).

  • notice:

    both the balloting disks and the OCRs ought to dwell on either cluster file device info or on shared uncooked instruments that you simply configure prior to installing Oracle Clusterware and Oracle RAC. Oracle Clusterware inordinate Availability and the utility Programming Interface

    Oracle Clusterware provides a high availability utility programming interface (API) so you might exercise to permit Oracle Clusterware to control purposes or techniques that sprint a cluster. This makes it viable for you to provide inordinate availability for bar no one your applications. The Oracle Clusterware with ASM makes it viable for you to create a consolidated pool of storage to embolden each the only-illustration Oracle databases and the Oracle RAC databases which are operating in your cluster.

    To hold inordinate availability, Oracle Clusterware accessories can reply to fame changes to restart purposes and tactics in accordance with described inordinate availability suggestions. in addition, that you may exercise the Oracle Clusterware inordinate availability framework by registering your applications with Oracle Clusterware and configuring the clusterware to beginning, stop, or relocate your utility procedures. this is, you can design custom purposes totally purchasable through the exercise of Oracle Clusterware to create profiles that computer screen, relocate, and restart your applications. The Oracle Clusterware responds to FAN events which are created via an Oracle RAC database. Oracle pronounces FAN hobbies when cluster servers may turn into unreachable and community interfaces are sluggish or non-purposeful.

    Workload administration with Oracle precise utility Clusters

    Workload management makes it viable for you to control the distribution of workloads to provide optimum performance for users and functions. This contains providing the optimum availability for database connections, speedy failure restoration, and balancing workloads optimally throughout the lively configuration. Oracle Database 10g with Oracle RAC includes many aspects that may enhance workload administration equivalent to connection load balancing, quickly connection failover (FCF), the affliction balancing advisory, and Runtime Connection Load Balancing. Workload administration provides the most suitable benefits to Oracle RAC environments. that you could, however, assume learning of workload management through the exercise of Oracle capabilities in single-instance Oracle Databases, in particular those that exercise information assume keeping of or Streams. Workload administration includes here components:

  • excessive Availability Framework—The Oracle RAC inordinate availability framework permits the Oracle Database to hold accessories in a working state consistently. Oracle high availability implies that Oracle Clusterware monitors and restarts vital accessories if they cease, except you override the restart processing. The Oracle Clusterware and Oracle RAC additionally supply indicators to purchasers when configurations alternate. This makes it viable for valued clientele to automatically react to the alterations, enabling utility builders to mask outages and reconfigurations from conclusion clients. The scope of Oracle high availability spans from the restarting of stopped Oracle techniques in an Oracle database instance to failing over the processing of an entire sample to different accessible instances.

  • Load Balancing Advisory—here is the skill of the database to provide information to purposes about the present service levels being offered with the aid of the database and its circumstances. purposes can assume talents of this assistance to direct connection requests to the instance in an application to provide the utility request with the greatest provider trait to finished the application's processing. Oracle has built-in its Java Database Connectivity (JDBC) and Oracle statistics provider for .internet (ODP.net) connection swimming pools to work with the load balancing counsel. applications can exercise the integrated connection pools without programmatic changes.

  • features—Oracle Database 10g introduces a magnificent computerized workload management facility, called services, to enable the traffic grid imaginative and prescient. features are entities so that you can define in Oracle RAC databases. functions enable you to neighborhood database workloads and route the work to the premiere circumstances which are assigned to process the carrier. moreover, you can exercise capabilities to define the supplies that Oracle assigns to system workloads and to monitor workload materials. functions that you simply allocate to features transparently acquire the defined workload administration characteristics, together with high availability and load balancing rules. Many Oracle database points are integrated with services, akin to useful resource supervisor, which enables you to avert the components that a service can exercise within an illustration. Some database aspects are moreover built-in with Oracle Streams, superior Queuing, to obtain queue vicinity transparency, and the Oracle Scheduler, to map features to particular job courses.

    In Oracle RAC databases, the carrier performance guidelines that you configure control the amount of labor that Oracle allocates to each and every accessible sample for that service. As you lengthen your database by adding nodes, applications, components of functions, and so on, which you can add extra features.

  • Connection Load Balancing— Oracle web capabilities offers connection load balancing for database connections. Connection load balancing occurs when the connection is created. Connections for a given service are balanced across the entire operating situations that present the carrier. live sure to define how you crave connections to live balanced in the provider definition. despite the fact, you possess to still configure Oracle internet capabilities. in the event you permit the affliction balancing advisory, the Listener makes exercise of the affliction balancing advisory for connection load balancing.

  • Introduction to setting up Oracle Clusterware and Oracle loyal utility Clusters

    This portion introduces the storage alternate options for Oracle RAC and the setting up processes for both Oracle Clusterware and Oracle RAC beneath birthright here topics:

    Oracle Clusterware installation technique Description

    The Oracle Clusterware is distributed on the Oracle Database 10g installation media. The Oracle frequent Installer (OUI) installs Oracle Clusterware into a listing structure, which can live referred to as CRS_home, that is crash away different Oracle utility running on the machine. as a result of Oracle Clusterware works intently with the operating system, apparatus administrator access is required for one of the crucial installation tasks. additionally, some of the Oracle Clusterware procedures possess to sprint as the gadget administrator, which is frequently the foundation consumer on Unix and Linux techniques and the apparatus Administrator person on windows programs.

    before you install Oracle Clusterware, Oracle recommends that you just sprint the Cluster Verification Utility (CVU) to ensure that your atmosphere meets the Oracle Clusterware installing necessities. The OUI moreover automatically runs CVU at the conclude of the clusterware setting up to investigate quite a lot of clusterware accessories. The CVU simplifies the installing, configuration, and overall management of the Oracle Clusterware installing procedure through deciding upon complications in cluster environments.

    all the way through the Oracle Clusterware installation, you must establish three IP addresses for each node that is going to live portion of your installing. One IP tackle is for the inner most interconnect and the different is for the common public interconnect. The third IP handle is the digital IP address that shoppers will exercise to hook up with each and every instance.

    The Oracle Clusterware setting up system creates the vote casting disk and OCR on cluster-mindful storage. if you elect the preference for common redundant copies bar no one the way through the installation system, then Oracle Clusterware automatically keeps redundant copies of those files to steer transparent of the information from becoming single aspects of failure. The regular redundancy feature additionally eliminates the requisite for third celebration storage redundancy solutions. in case you exercise common redundancy, Oracle Clusterware instantly continues two copies of the Oracle Cluster Registry (OCR) file and three copies of the balloting Disk file.

    be aware:

    in case you elect external redundancy for the OCR and vote casting disk, then to allow redundancy, your disk subsystem should live configurable for RAID mirroring. in any other case, your apparatus may live susceptible because the OCR and balloting disk are single features of failure. Oracle precise software Clusters setting up and Database creation system Description

    The Oracle RAC application is distributed as a portion of the Oracle Database 10g setting up media. with the aid of default, the ordinary Oracle Database 10g software installation manner installs the Oracle RAC preference when it acknowledges that you are performing the setting up on a cluster. The OUI installs Oracle RAC birthright into a listing constitution, which can live called Oracle_home, it's crash away different Oracle utility running on the computing device. as a result of OUI is cluster-mindful, it installs the Oracle RAC utility on bar no one the nodes that you simply described to live a portion of the cluster. if you're the exercise of a licensed cluster file apparatus for the Oracle home, then handiest opt for the node that you are linked to for the installing.

    You possess to first deploy Oracle Clusterware before setting up Oracle RAC. After Oracle Clusterware is operational, that you could exercise OUI to install the Oracle database utility with the Oracle RAC add-ons. during the installation, OUI runs DBCA to create your Oracle RAC database based on the alternate options that you simply choose. The DBCA additionally runs the internet Configuration coadjutant (NETCA) to configure the network to your Oracle RAC environment.

    Oracle recommends that you just elect ASM during the installation to simplify storage administration; ASM instantly manages the storage of bar no one database info inside disk organizations. which you could additionally configure features bar no one the way through installation, counting on your processing necessities. if you are the exercise of the Oracle Database 10g standard edition, then you definately should exercise ASM for storing bar no one of the database info.

    by default, DBCA creates one carrier to your environment and this service is for the database. The default carrier is accessible on bar no one circumstances in an Oracle RAC atmosphere, until the database is in confined mode.

    Cloning Oracle Clusterware and Oracle RAC software in Grid Environments

    This section in short summarizes the techniques for deploying Oracle RAC in grid environments which possess colossal numbers of nodes the usage of cloned photos for Oracle Clusterware and Oracle RAC. Oracle cloning is the favorite system of extending your Oracle RAC environment by means of including nodes and situations. To function the cloning strategies that are summarized during this area, advert to the Oracle customary Installer and OPatch consumer's e-book.that you may moreover exercise enterprise manager Grid control to operate cloning.

    The cloning procedure assumes that you simply efficaciously plot in an Oracle Clusterware domestic and an Oracle home with Oracle RAC on as a minimum one node. in addition, bar no one root scripts requisite to possess sprint efficaciously on the node from which you are extending your cluster database. to design exercise of Oracle cloning, first clone the Oracle Clusterware home and then clone the Oracle domestic with the Oracle RAC application.

    To clone the Oracle Clusterware domestic, on UNIX-based programs create a tar file of the Oracle Clusterware home and copy the file to the brand original node's Oracle Clusterware home. On windows-primarily based techniques you possess to create zip data. Then on UNIX-based mostly programs create the required users and companies on the original nodes. On windows-primarily based methods, you result not requisite to create clients and organizations, but the consumer that performs the cloning should live the equal consumer that carried out the installation.

    Extract the tar file, or unzip the zip file, and sprint the Oracle common Installer (OUI) in clone mode as described within the Oracle prevalent Installer and OPatch person's e-book. Then sprint the installing scripts and iterate these steps on each and every node that you're including. The procedure for cloning the Oracle home onto original nodes is comparable to the system for cloning the Oracle Clusterware home. additionally, you must sprint the Oracle internet Configuration coadjutant (NETCA) on each original node to create a Listener.

    in case you possess not already created a database, then that you would live able to sprint the Database Configuration coadjutant (DBCA) to create one. ultimately, comply with the plot up-cloning processes to complete the extension of your Oracle RAC ambiance onto the original nodes.

    extra concerns and features for Oracle actual software Clusters

    in addition to configuring functions to manage your workloads, additionally accept as loyal with the exercise of here features in case you set up Oracle RAC:

  • Scaling Your Oracle RAC Database—As outlined, you can add nodes and situations to your Oracle RAC atmosphere the exercise of Oracle cloning. in case you elect to now not exercise cloning, then that you can extend your database through the exercise of the manual approaches that are described in Chapter 10, "including and Deleting Nodes and circumstances on UNIX-based programs" or Chapter 11, " adding and Deleting Nodes and situations on home windows-based methods".

  • business supervisor—Use enterprise supervisor to manage your complete Oracle RAC ambiance, now not simply the Oracle RAC database. exercise commercial enterprise supervisor to create and adjust services, and to start and stop the cluster database situations and the cluster database. traffic manager has additional facets as exact within the portion "Overview of the exercise of traffic manager with Oracle loyal application Clusters".

  • recovery supervisor (RMAN)—RMAN backs up, restores, and recovers datafiles, handle information, server parameter files (SPFILEs) and archived redo logs. which you can exercise RMAN with a media manager to again up files to external storage. which you can moreover configure parallelism when backing up or convalescing Oracle RAC databases. In Oracle RAC, RMAN channels can live dynamically allocated throughout bar no one the Oracle RAC cases. Channel failover allows failed operations on one node to proceed on one more node. that you could exercise RMAN in Oracle RAC from the Oracle commercial enterprise manager Backup supervisor or from a command line.

  • computerized undo administration—instantly manages undo processing.

  • computerized aspect house administration (ASSM)—immediately manages section freelists and freelist corporations.

  • locally managed tablespaces—Enhances space management efficiency.

  • Cluster Verification Utility (CVU)—Use CVU to determine the repute of your clusterware in case you experience issues or exercise it every time you reconfigure your cluster.

  • Sequences—if you exercise sequence numbers, then always exercise CACHE with the NOORDER preference for most useful sequence number technology efficiency. With the CACHE choice, despite the fact, you might moreover possess gaps in the sequence numbers. if your atmosphere can not tolerate sequence quantity gaps, then exercise the NOCACHE preference or accept as loyal with pre-generating the sequence numbers. in case your utility requires sequence number ordering however can tolerate gaps, then exercise CACHE and ORDER to cache and order sequence numbers in Oracle RAC. in case your application requires ordered sequence numbers with out gaps, then exercise NOCACHE and ORDER. This mixture has essentially the most impoverished repercussion on performance compared to different caching and ordering combinations.

  • Indexes—in case you exercise indexes, accept as loyal with alternatives, similar to reverse key indexes, to optimize index efficiency. reverse key indexes are peculiarly constructive if in case you possess widely wide-spread inserts to 1 side of an index, such as indexes which are according to insert date.

  • Managing Oracle loyal utility Clusters Environments

    This section describes birthright here Oracle RAC atmosphere management issues:

    Designing Oracle actual software Clusters Environments

    accept as loyal with performing here steps bar no one through the design and building of applications that you're deploying on an Oracle RAC database. trust tuning:

  • The design and the software

  • The reminiscence and that i/O

  • competition

  • The operating system

  • observe:

    If an utility does not scale on an SMP desktop, then moving the utility to an Oracle RAC database can not enrich performance.

    consider the usage of hash partitioning for insert-intensive online transaction processing (OLTP) applications. Hash partitioning:

  • Reduces contention on concurrent inserts into a single database constitution

  • impacts sequence-based mostly indexes when indexes are locally partitioned with a table and tables are partitioned on sequence-primarily based keys

  • Is transparent to the application

  • in case you hash partitioned tables and indexes for OLTP environments, then that you may greatly help efficiency on your Oracle RAC database. note that you simply cannot exercise index latitude scans on an index with hash partitioning.

    when you are using sequence numbers, then always exercise the CACHE option. if you exercise sequence numbers with the CACHE alternative, then:

    Administrative tools for Oracle loyal utility Clusters Environments

    Oracle allows for you to manage a cluster database as a single gadget image via commercial enterprise manager, SQL*Plus, or via Oracle RAC command-line interfaces similar to Server control (SRVCTL). that you would live able to moreover exercise a few tools and utilities to control your Oracle RAC environment and its accessories as follows:

  • business supervisor—commercial enterprise supervisor has both the Database control and Grid control GUI interfaces for managing both single instance and Oracle RAC environments.

  • Cluster Verification Utility (CVU)—CVU is a command-line tool so you might exercise to check various cluster and Oracle RAC-specific components corresponding to shared storage devices, networking configurations, system requirements, and Oracle Clusterware, as well as working device agencies and clients. that you may exercise CVU for pre-installing checks as well as for submit-installing exams of your cluster atmosphere. CVU is certainly useful bar no one through pre-setting up and bar no one through installation of Oracle Clusterware and Oracle RAC accessories. The OUI runs CVU after Oracle Clusterware and the Oracle setting up to verify your environment.

  • Server handle (SRVCTL)—SRVCTL is a command-line interface so you might exercise to maneuver an Oracle RAC database from a single factor. you can exercise SRVCTL to birth and preclude the database and instances and to delete or circulation circumstances and capabilities. which you can additionally exercise SRVCTL to maneuver configuration advice.

    See also:

    Appendix E for extra counsel about SRVCTL
  • Cluster competent functions handle (CRSCTL)—CRSCTL is a command-line device so that you can exercise to control Oracle Clusterware. that you can exercise CRSCTL to start and preclude Oracle Clusterware. CRSCTL has many options similar to enabling online debugging,

  • Oracle Interface Configuration tool (OIFCFG)—OIFCFG is a command-line device for each single-instance Oracle databases and Oracle RAC environments that you can exercise to earmark and de-allocate community interfaces to accessories. which you could additionally exercise OIFCFG to direct accessories to design exercise of selected community interfaces and to retrieve component configuration tips.

  • OCR Configuration device (OCRCONFIG)—OCRCONFIG is a command-line tool for OCR administration. that you can moreover exercise the OCRCHECK and OCRDUMP utilities to troubleshoot configuration issues that strike the OCR.

  • Monitoring Oracle precise application Clusters Environments

    internet-based mostly traffic manager Database manage and Grid manage permit you to array screen an Oracle RAC database. The traffic supervisor Console is a principal constituent of control for the Oracle environment that you entry by means of a graphical person interface (GUI). exercise the commercial enterprise supervisor Console to arouse cluster database administration tasks. exercise enterprise manager Grid control to manage multiple Oracle RAC databases. additionally note here elements about monitoring Oracle RAC environments:

  • The global views, or GV$ views, are in keeping with V$ views. The catclustdb.sql script creates the GV$ views. sprint this script in case you result not create your database with DBCA. otherwise, DBCA runs this script for you.

  • Statspack is Oracle RAC-mindful.

    notice:

    as an alternative of the exercise of Statspak, Oracle recommends that you simply exercise the greater sophisticated management and monitoring aspects of the Oracle Database 10g Diagnostic and Tuning packs which include the automatic Database Diagnostic array screen (ADDM).
  • Evaluating efficiency in Oracle loyal application Clusters Environments

    You result not should operate special tuning for Oracle RAC; Oracle RAC scales devoid of particular configuration adjustments. in case your application carried out neatly on a single-illustration Oracle database, then it'll operate neatly in an Oracle RAC environment. lots of the tuning tasks that you'd operate on a single-instance Oracle database can moreover help Oracle RAC database efficiency. here's very loyal in case your environment required scalability across a more advantageous number of CPUs.

    one of the crucial Oracle RAC performance aspects are:

  • Dynamic aid Allocation

  • Cache Fusion enables A Simplified Tuning Methodology

  • You won't possess to tune any parameters for Cache Fusion

  • No application-level tuning is critical

  • that you would live able to exercise a backside-up tuning system with basically no repercussion for your latest purposes

  • extra specific efficiency statistics


  • New Oracle VM Templates for Oracle precise software Clusters Now purchasable | killexams.com true Questions and Pass4sure dumps

    REDWOOD SHORES, CA--(Marketwire - eleven/15/10) - Oracle (NASDAQ:ORCL - information)news statistics

  • Enabling shoppers to rapidly set up a particularly purchasable, virtualized database, Oracle today announced the provision of original Oracle VM Templates for Oracle Database 11g unencumber 2 and Oracle loyal application Clusters.
  • by presenting pre-installed and pre-configured application photos, Oracle VM Templates supply an innovative system to deploying a totally configured software stack and permit virtual and cloud environments to live provisioned birthright now, with no trouble, normally, and with simplified administration.
  • the brand original Oracle VM Templates for Oracle loyal software Clusters deliver a quick and simple approach to installation a database cluster on Oracle VM for building, peruse at various and construction environments. Clusters of any number of nodes can live developed, and the complete setting up is computerized, inquiring for minimal suggestions from the person when guests are booted.
  • Combining the advantages of Oracle VM for x86 and Oracle precise application Clusters presents a totally purchasable database cloud respond with bar no one of the merits of a totally virtualized environment.
  • the brand original Oracle VM Templates can live establish in 32-bit or sixty four-bit gadget formats.
  • enjoyable aggregate of Virtualization and Clustering Speeds Time to Market and allows bigger Availability

  • Use of Oracle VM Templates tremendously simplifies setting up and configuration, helping in the reduction of initial and ongoing maintenance fees and enabling agencies to obtain quicker time to market and lessen cost of operations.
  • by way of deploying Oracle true application Clusters in Oracle VM environments with the original templates, purchasers can profit from superior database availability.
  • The combination of Oracle VM and Oracle true utility Clusters makes it viable for interminable availability within the visage of hardware and application failures, an dreadful lot bigger availability than would traditionally live bought through hypervisor-best solutions from providers like VMware, that could only flood and restart failed virtual machines.
  • Oracle VM Templates are additionally attainable for Oracle purposes, Oracle Fusion Middleware, Oracle Database, Oracle Linux, Oracle Solaris and different Oracle items.
  • supporting Quote

  • "only Oracle presents the enjoyable combination of clustering and virtualization," talked about Wim Coekaerts, senior vp, Linux and Virtualization Engineering, Oracle. "the usage of an Oracle VM infrastructure combined with the performance, scalability and resiliency of Oracle true application Clusters and Oracle VM Templates, they assist purchasers significantly reduce deployment and operational charges whereas enabling a highly attainable infrastructure."
  • helping materials

    About Oracle Oracle (NASDAQ:ORCL - information) is the area's most comprehensive, open, and built-in enterprise application and hardware techniques business. For extra guidance about Oracle, delight visit their internet website at http://www.oracle.com.emblems Oracle and Java are registered emblems of Oracle and/or its associates. other names may live logos of their respective house owners.


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    Oracle Database 11g Release 2 is generally available and downloadable today from the Oracle Technology Network (OTN). Improvements possess been made in bar no one key areas, with a common emphasis on helping customers lower their IT infrastructure costs.

    The original release represents the culmination of a journey Oracle began just over two years ago with Release 1 of 11g, mark Townsend, vice president, Database Product Management, Oracle, tells 5 Minute Briefing. During that time roughly 1,500 developers possess worked on the product and there possess been more than 15 million hours of testing done on the product as well.

    Oracle 11g Release 2 delivers capabilities for reduced server costs by consolidating onto the Grid, reduced storage costs, improving performance for data warehouses as well as raising DBA productivity.

    Among the key capabilities, Oracle true Application Clusters (RAC) delivers grid plug and play and original server pooling capabilities that enable organizations to reduce their server costs by streamlining the provisioning and management of consolidated database grids.

    Oracle RAC One Node, a original Database option, is moreover available today. This enables customers to sprint a single Database on a single node inside the grid, says Townsend. While it doesn't enable the scalability provided by having more than one node working on that database, Oracle RAC One Node is a solution that allows customers to more easily consolidate their less mission-critical database environments on the grid with the redundancy and availability provided by Oracle true Application Clusters.

    Additionally, Oracle Database 11g Release 2 advanced compression and partitioning embolden reduce storage costs by compressing data as much as 2x-4x and simplifying the exercise of storage tiers. Enhancements to Automatic Storage Management include original cluster file system capabilities that extend beyond Oracle Databases to provide general-purpose file systems, helping customers further reduce their storage management costs.

    For improved performance in data warehouses, Oracle Database 11g R2 in combination with the Oracle Database Machine can deliver up to 10x faster query performance. Oracle Database 11g Release 2 moreover delivers enhanced query performance with the faculty to transparently execute a query against data stored in recollection across bar no one the servers in a grid.

    Oracle Database 11g R2 Automatic Storage Management, Oracle RAC and energetic Data Guard allow storage and server resources to live used for both weakness tolerance and running production workloads, keeping servers and storage from sitting idle waiting for failures. In addition, a original feature called Edition-based Redefinition has been introduced to allow customer database applications to live upgraded online. "One of the things customers possess always wanted to live able to result is online application upgrades," says Townsend.

    For more details about Oracle Database 11g Release 2, spin here.


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    This latest generation of database builds on the innovations introduced in Oracle Database 11g to embolden organizations deliver better information throughout the enterprise, at a higher trait of service, and at a much lower cost.

    In this release, Oracle true Application Clusters (RAC) delivers grid plug and play and original server pooling capabilities that enable organizations to reduce their server costs by streamlining the provisioning and management of consolidated database grids.

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    Oracle 11i vs. Oracle 11g | killexams.com true questions and Pass4sure dumps

    Is there an Oracle 11i and an 11g? If so, what is the difference? What are the other names for Oracle 11i and what is the suite made of?

    Oracle 11i refers to the Oracle ERP Application Suite (often called Oracle E-Business Suite) and really has nothing to result with the database. The latest release (12) will live referred to as 12i. The confusing portion is that Oracle used to convene its database "i" for "internet" in releases 8 and 9, but now calls the database "g" for "grid". So, to summarize, Oracle 11i refers to the apps and Oracle 11g refers to the database.



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