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1Z0-023 - Architecture and Administration - Dump Information

Vendor : Oracle
Exam Code : 1Z0-023
Exam Name : Architecture and Administration
Questions and Answers : 151 Q & A
Updated On : March 15, 2018
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1Z0-023 Questions and Answers

1Z0-023 Architecture and Administration

Article by Killexams Oracle Certification Experts


Oracle Architecture and Administration

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REF5986K - team of workers Oracle Database Engineer | real questions with brain dumps

concerning the team

The database team is part of Infrastructure’s disbursed systems Division and is chargeable for offering open system database infrastructures with operational excellence, being the industry leader in preventive and predictive operations driven by means of continual innovation via self-heal and automated ecosystems, architecting, engineering, and building the legitimate, scalable, relaxed, accessible, and in your price range database infrastructure solutions for product building partners.  We work closely with those partners to premier make the most of database products and meet workload necessities.

individuals of the team are the know-how owner of diverse RDBMS and NoSQL technologies, are in charge to strategize, boost, and engineer enterprise solutions for automatic construct/patching and productive administration that meet protection, availability, efficiency, fast start and reporting requirements, and to assist projects and products the use of these technologies.


As an engineer in this team, you could be worried within the planning, constructing and running of activities regarding database expertise and infrastructure. you are going to make contributions to the design/architect, solution engineering, and aid; you could be accountable for delivering database tasks, keeping the operational methods, operate issue evaluation and troubleshooting. remember to be smartly versed in database administration and engineering practices and concepts as you'll share the responsibility of universal database construct, deployment and aid. you will deliver technical affect and field rely capabilities for the database group, responsible for solving complicated issues and taking a wide viewpoint to identify inventive options. you'll serve as a technical/purposeful specialist and works independently with information most effective within the most complex cases.


primarily the structure, engineering, deployment and help of Oracle database atmosphere.

support Database Platform Engineering in the architecture, building and deployment of Oracle Database on LUW in excessive SLA environments. support for MySQL Database technologies might be a plus. This includes, however is not constrained to, superior to professional engineering and implementation of here: 

  •  manipulate, aid and retain database know-how and infrastructure, adhering to the architectural guidelines and guidelines.
  • Database administration for off the shelf and internally developed applications, be certain continuous 24x7 operation and availability in help of mission vital enterprise functions and participating in on-name rotation.
  • installation, configure, video display, improve and maintain Oracle databases in construction and non-production environments.
  • guide native/throughout the DC failover with excessive Availability catastrophe healing environment with DG/OGG. participate in Database upkeep and DR actions.
  • Write/retain OS level scripts for DB automation and application protection.
  • give technical skills and hands-on assist in consolidation and migration of databases to new hardware and platforms.
  • actual implementation of databases, storage constructions, excessive-availability solutions, replication, and disaster recuperation solutions.
  • Proactive and reactive efficiency evaluation, monitoring, troubleshooting and resolution of escalated level 2 and Level3 concerns.
  • general database skill planning regarding database increase and gadget utilization, style evaluation, predictive future database aid necessities, and the structured geared up reporting of the identical.
  • Work carefully with other Infrastructure engineering, product construction, enterprise operations, and technical operations to ensure birth of database functions within the SLA’s and performance goals.
  • Adapt company necessities, mannequin facts, and strengthen database necessities, table and factor attributes.
  • participate in the contrast, preference and implementation of DBA equipment to enrich the effectiveness of projects corresponding to performance monitoring and tuning, recuperation, and database change administration processing.
  • ·Be a crew player, self-starter and incredibly self-pushed - we do not are looking to micromanage you.

  • Amazon Aurora as a substitute for Oracle RAC | real questions with brain dumps

    Written by using David Yahalom, CTO and co-founding father of NAYA Tech—a leading database, large records, and cloud skilled and consulting carrier company, located in San Jose, CA. David is an authorized Oracle, Apache Hadoop, and NoSQL database skilled and a cloud options architect.

    Oracle actual utility Clusters (Oracle RAC) is regarded to be probably the most advanced and able technologies for enabling a extremely accessible and scalable relational database. it is considered the default go-to common for growing tremendously obtainable and scalable Oracle databases.

    although, with the ever expanding adoption of cloud, open-source, and platform-as-a-provider (PaaS) database architectures, many companies are seeking their next-technology relational database engine. They’re hunting for one which can provide an identical stages of excessive availability and scalability to Oracle RAC, however in a Cloud/PaaS model, while protecting the freedom of open source application.

    in this publish, I talk about how Amazon Aurora can serve as a powerful and versatile choice to Oracle RAC for definite applications. each Oracle RAC and Amazon Aurora are designed to deliver elevated excessive availability and efficiency scalability on your databases. but they strategy these goals from very different instructions the usage of distinct architectures:

  • Oracle RAC makes use of an difficult conclusion-to-conclusion utility stack developed through Oracle—together with Oracle Clusterware and Grid Infrastructure, Oracle computerized Storage administration (ASM), Oracle net Listener, and the Oracle Database itself—mixed with commercial enterprise-grade storage that makes it possible for a shared-every thing database cluster technology.
  • Amazon Aurora simplifies the database expertise stack by using AWS ecosystem accessories to transparently allow greater availability and efficiency for MySQL and PostgreSQL databases.
  • So let’s dive appropriate in!

    PrefaceI’ll birth this weblog submit with a quick disclaimer. I’m what you would name a “born and raised” Oracle DBA. My first job, 15 years in the past, had me accountable for administration and setting up code on production Oracle 8 databases. when you consider that then, I’ve had the possibility to work as a database architect and administrator with all Oracle models as much as and together with Oracle 12.2. all over my career, I’ve delivered a lot of a hit initiatives the usage of Oracle as the relational database component.

    As such, i really like the capabilities, aspects, technology, and power of Oracle Database. There’s in reality no denying that Oracle is still probably the most (if not probably the most) effective and superior relational databases on earth. Its location within the pantheon of database kings is definitely safe.

    also, please take into account that the Amazon Aurora and RAC architectures range vastly and the intention of this article isn't to evaluate the internals of Amazon Aurora vs. Oracle RAC. in its place, my goal is to seem to be an Amazon Aurora and Oracle RAC from a practical point of view. Put forth one of the crucial mainstream RAC use-instances and notice if they can also be dealt with by way of Amazon Aurora and, on the identical time, leverage the inherit benefits of AWS.

    The paradigm shiftWith that introduction out of how, let’s focus on how the database industry is altering and why many purchasers choose to think backyard the box and undertake cloud-primarily based solutions as alternate options for business databases. Even applications that require the highest tiers of efficiency and availability or people who run on excessive-end business databases can doubtlessly now be powered by means of MySQL and PostgreSQL databases—albeit with some Amazon “particular sauce” on precise. however more on that later.

    There’s a primary shift occurring in the database panorama as shoppers transition their information architectures from being monolithic—the place a single, large, and feature-full, relational database powers their whole answer stack—to a extra services-oriented model. The business database isn’t going any place, but, in the new model, different database applied sciences vigour distinctive constituents of the answer. This “most beneficial-of-breed” approach makes ultimate feel as emerging database technologies turn into greater mature, powerful, and feature-rich.

    moreover, there’s an incredible upward trend in the adoption of cloud features. Even the most typical organization can see the benefits of tapping into the vigour that cloud-centric architectures can supply in efficiency, flexibility, excessive availability, and reduced complete cost of ownership (TCO).

    should you mix that with the massive and hastily expanding adoption of open supply–based relational databases, that you would be able to naturally see that the database industry is moving in a unique trajectory from the basic “one business database to rule all of them” method that became as soon as regular.

    Now, let’s dig deeper…

    Oracle RAC architectureMy first step is to flesh out the most important benefits that Oracle actual utility Clusters (Oracle RAC) offers to its shoppers. considering that here's only a blog publish and never a full-blown research paper, i will be able to’t cover each aspect and benefit of Oracle RAC so I’m deliberately preserving the dialogue at a relatively excessive degree so it may also be approachable for a large viewers and not completely Database administrators.

    Oracle RAC is one of the most important differentiating facets for an Oracle database when in comparison to other relational database technologies. Oracle RAC is the know-how that makes it possible for an Oracle database to provide accelerated degrees of excessive availability and large efficiency advantages.

    Oracle RAC is an energetic/lively database cluster, the place varied Oracle database servers (operating Oracle Database instances, which is a set of in-reminiscence procedures and caches) entry a shared storage machine that incorporates a single set of disk-persistent database info. This architecture is significantly distinct from what you constantly discover in a non-Oracle database cluster. as an alternative of each and every database node having its own dedicated storage, all the database nodes coordinate and share access to the identical actual disks.

    all of the database nodes coordinate with one one more using each a committed network-based communication channel (well-known because the cluster interconnect) and a collection of disk-based mostly information.

    Public access to the cluster (from incoming purposes, SQL queries, users, etc.) is performed using a set of SCAN IPs that are used to load-balance incoming periods. moreover, each RAC cluster node has its personal physical and virtual IP addresses that may also be used to open a connection directly to a selected node.

    drastically simplified Oracle RAC architecture

    because of the shared nature of the RAC cluster structure—particularly, having all nodes write to a single set of database statistics information on disk—here two particular coordination mechanisms have been carried out to ensure that the Oracle database objects and records preserve ACID compliance:

  • GCS (global Cache services) tracks the region and the reputation of the database statistics blocks and helps guarantee records integrity for global entry across all cluster nodes.
  • GES (world Enqueue features) performs concurrency control throughout all cluster nodes, together with cache locks and the transactions.
  • These features, which run as heritage techniques on each and every cluster node, are basic to serialize entry to shared statistics buildings within the Oracle database.

    Shared storage is yet another essential element within the Oracle RAC architectures. All cluster nodes study and write records to the equal actual database information kept in a disk that's purchasable via all nodes. Most valued clientele rely on high-end storage hardware to supply the shared storage capabilities required for RAC.

    additionally, Oracle offers its own utility-based storage/disk management mechanism called automated Storage administration, or ASM. ASM is implemented as a group of special heritage tactics that run on all cluster nodes and allow for simpler management of the database storage layer.

    So, to recap, the main components of an Oracle RAC structure encompass right here:

  • Cluster nodes: Set of one or extra servers running Oracle situations, every with a group of in-reminiscence tactics and caches.
  • Interconnect network: Cluster nodes speak with one one more the use of a dedicated “interconnect” network.
  • Shared storage: All cluster nodes entry the equal actual disks and coordinate entry to a single set of database data info that include consumer records. constantly dealt with by way of a mixture of enterprise-grade storage with Oracle’s ASM utility layer.
  • SCAN (Single customer entry name): “Floating” virtual hostname/IPs offering load-balancing capabilities across cluster nodes. Naming decision of SCAN to IP may also be achieved by way of DNS or GNS (Grid Naming service).
  • digital IPs (and actual IPs): every cluster node has its personal dedicated IP address.
  • performance and scale-out in Oracle RAC

    With Oracle RAC, that you would be able to add new nodes to an present RAC cluster without downtime. including extra nodes to the RAC cluster increases the degree of high availability that’s provided and additionally enhances performance.

    despite the fact which you could scale study performance with no trouble through adding more cluster nodes, scaling write performance is a extra advanced subject. Technically, Oracle RAC can scale writes and reads collectively when including new nodes to the cluster, but makes an attempt from diverse classes to modify rows that stay in the same physical Oracle block (the lowest degree of logical I/O performed by means of the database) may cause write overhead for the requested block and affect write efficiency. here is smartly conventional phenomena and why RAC-conscious applications are a real aspect in the precise world. Concurrency is additionally one of the vital motives and why RAC implements a “sensible studying” mechanism which attempts to in the reduction of write-concurrency overhead. The “sensible getting to know” mechanism makes it possible for the database to examine which provider factors which rows to be read into the buffer cache and grasp the information blocks most effective on these nodes where the provider is lively. Scaling writes in RAC isn’t as straightforward as scaling reads.

    With the limitations for pure write scale-out, many Oracle RAC shoppers choose to split their RAC clusters into varied “functions,” which can be logical groupings of nodes within the same RAC cluster. through the use of features, that you may use Oracle RAC to perform direct writes to selected cluster nodes. here's continually executed in a single of two approaches (as shown within the diagram that follows):

  • Splitting writes from distinct particular person “modules” in the utility (it truly is, organizations of impartial tables) to diverse nodes within the cluster. this is often known as “utility partitioning” (no longer to be at a loss for words with database desk partitions).
  • In extraordinarily un-optimized workloads with excessive concurrency, directing all writes to a single RAC node and cargo-balancing handiest the reads.
  • main merits of Oracle RACTo recap, Oracle precise software Clusters offers two most important merits that pressure customer adoption:

  • distinct database nodes within a single RAC cluster give improved high availability. No single point of failure exists from the database servers themselves. although, the shared storage requires storage-based high availability or DR options.
  • assorted cluster database nodes allow for scaling-out question efficiency throughout varied servers.
  • Amazon Aurora structure

    Aurora is Amazon’s flagship cloud database solution. When developing Amazon Aurora cluster databases, you can make a choice from MySQL and PostgreSQL compatibility.

    Aurora extends the “vanilla” models of MySQL and PostgreSQL in two fundamental ways:

  • adding enhancements to the MySQL/PostgreSQL database kernel itself to improve performance (concurrency, locking, multithreading, etc.)
  • the use of the capabilities of the AWS ecosystem for stronger excessive availability, disaster recovery, and backup/restoration performance.
  • Aurora adds these enhancements devoid of affecting the database optimizer and SQL parser. This means that these adjustments are absolutely transparent to the utility. if you provision an Aurora cluster with MySQL compatibility, as the name suggests, any MySQL-compatible application can characteristic.

    When evaluating the Amazon Aurora structure to Oracle RAC, that you can see foremost modifications in how Amazon chooses to give scalability and multiplied high availability in Aurora. These adjustments are due peculiarly to the existing capabilities of MySQL/PostgreSQL and the strengths that the AWS backend can give in terms of networking and storage.

    in its place of having distinct study/write cluster nodes entry a shared disk, an Aurora cluster has a single basic node (“master”) that's open for reads and writes and a collection of duplicate nodes which are open for reads with automated advertising to simple (“grasp”) in case of failures. Whereas Oracle RAC makes use of a set of background approaches to coordinate writes across all cluster nodes, the Amazon Aurora master writes a relentless redo circulation to six storage nodes, disbursed throughout three Availability Zones in an AWS area. The best writes that move the network are redo log records, not pages.Let’s go deeper…

    every Aurora cluster can have one or more situations which serve distinctive purposes:

  • At any given time, a single illustration capabilities as the simple (“grasp”) that handles both writes and reads out of your functions.
  • in addition to the primary (“master”), up to fifteen study replicas will also be created, which can be used for two functions:
  • For performance and browse scalability: as study-only nodes for queries/document-type workloads.
  • for prime availability: as failover nodes in case the master fails. every examine duplicate can also be found in a single of the three Availability Zones that hosts your Aurora cluster. A single Availability Zone can host more than one study duplicate.
  • the following is a high-degree Aurora architecture diagram displaying 4 cluster nodes: one primary (“grasp”) and three read replicas. The basic node is determined in Availability Zone A, the first examine replica in Availability Zone B, and the 2d and third read replicas in Availability Zone C.

    An Aurora Storage quantity is made of 10 GB segments of records with six copies spread across three AZs. each Amazon Aurora examine replica shares the identical underlying extent because the master illustration. Updates made by way of the master are seen to all study replicas via a combination of analyzing from the shared Aurora storage extent, and making use of log updates in-memory when bought from the fundamental illustration After a grasp failure, promoting of a examine replica to master is constantly below 30 seconds with out a facts loss.

    Drilling down, for a write to be considered durable in Aurora, the simple illustration (“master”) sends a redo movement to six storage nodes, two in every availability zone for the storage quantity, and waits except 4 of the six nodes have answered. No database pages are ever written from the database tier to the storage tier. The Aurora Storage extent asynchronously applies redo statistics to generate database pages within the historical past or on demand. be aware that Aurora hides the underlying complexity from the consumer.

    Amazon Aurora cluster with 1 X fundamental, 2 X Replicas (and shared disbursed storage).

    primary writes REDO records to a quorum of 6 storage nodes spread throughout three AZs.

    After four out of 6 storage nodes within the quorum ascertain write, the ACK is distributed back to the customer.

    Writes to six out of 6 quorum continues in the historical past.

    In parallel, REDO vectors are sent over the network from the simple to the Replicas to be utilized in-memory.

    high availability and scale-out in AuroraAurora provides two endpoints for cluster entry. These endpoints deliver each high availability capabilities and scale-out examine processing for connecting functions

  • Cluster Endpoint: Connects you to the present primary illustration for the Aurora cluster. that you could operate each study and write operations the usage of the cluster endpoint. Writes will always be directed to the “primary” illustration when applications use the Cluster Endpoint. If the present simple instance fails, Aurora immediately fails over to a brand new simple illustration. during a failover, the DB cluster continues to serve connection requests to the cluster endpoint from the brand new simple example, with minimal interruption of carrier.
  • Reader Endpoint: gives load-balancing capabilities (circular-robin) throughout the replicas allowing functions to scale-out reads throughout the Aurora cluster . the use of the Reader Endpoint provides more desirable use of the elements available within the cluster. The reader endpoint also enhances excessive availability. If an AWS Availability Zone fails, the utility’s use of the reader endpoint continues to ship read traffic to the other replicas with minimal disruption.
  • while Amazon Aurora specializes in the size-out of reads and Oracle RAC can scale-out each reads and writes, most OLTP purposes are usually no longer constrained with the aid of write scalability; From my own journey, many Oracle RAC purchasers use RAC at first for top availability and to scale-out their reads. that you would be able to write to any node in an Oracle RAC cluster, however this potential is frequently a functional improvement for the application versus a technique for attaining limitless scalability for writes.

    Scaling reads is constantly extra crucial for right here factors:

  • Most RDBMS-centric purposes are commonly extra read-heavy. a mix of 70 % reads/30 percent writes is average for most applications (for reference, the TPC-E benchmark has a 7:1 I/O examine to write down ratio).
  • Scaling examine performance is specifically critical when combining OLTP workloads (transactional) with analytical-category workloads, such as executing reviews on operational facts.
  • Even with Oracle RAC, that can scale-out writes to some extent, as a result of concurrency concerns that may happen when distinct periods are trying to adjust rows in the identical database block(s), many customers decide to partition the read/write workload to particular nodes in their RAC cluster growing “RAC-mindful functions”.
  • Can Amazon Aurora Be Your subsequent records Platform?To summarize, Amazon Aurora gives the following merits as a database platform:

  • varied cluster database nodes deliver elevated excessive availability. There is no single element of failure from the database servers. in addition, because an Aurora cluster is always disbursed across three availability zones, there's an important advantage for top availability and durability of the database. These forms of “stretch” database clusters are constantly special with different database architectures.
  • AWS managed storage nodes additionally deliver excessive availability for the storage tier. a 0-facts loss structure is employed in case a grasp node fails and a duplicate node is promoted to the new master. This failover can continually be accomplished in below 30 seconds.
  • distinct cluster database nodes permit for scaling-out question study performance throughout multiple servers.
  • tremendously decreased operational overhead using a cloud solution and reduced TCO through the use of AWS and open source database engines.
  • automated management of storage. No need to pre-provision storage for a database. Storage is instantly delivered as obligatory, and you best pay for one copy of your facts.
  • With Amazon Aurora you can with no trouble scale-out your reads (and scale-up your writes) which fits perfectly into the workload features of many, if no longer most, OLTP applications. be aware that scaling out reads always provides essentially the most tangible performance improvement.
  • When comparing Oracle RAC and Amazon Aurora side via facet, you can see the architectural modifications between the two database applied sciences. each provide high availability and scalability but strategy it with diverse architectures.

    Stepping lower back and searching at the bigger photograph, Amazon Aurora introduces a simplified answer that can function as an Oracle RAC choice for many standard OLTP applications that need high performance writes, scalable reads, very excessive stages of excessive availability with reduce operational overhead.

    function Oracle RAC Amazon Aurora garageconstantly enterprise-grade storage + ASM Aurora Storage Nodes: dispensed, Low Latency, Storage Engine Spanning diverse AZs Cluster classification active/active·         All nodes open for R/W


    ·         primary node open for R/W·         duplicate nodes open for reads

    Cluster digital IPs R/W load balancing: SCAN IP R/W: Cluster endpoint+study load balancing: Reader endpoint Internode coordination Cache-fusion + GCS + GES – Internode inner most community Interconnect – Transaction (write) TTR from node failure typically 0–30 seconds typically < 30 Seconds utility (examine) TTR from node failure instant instant Max number of cluster nodes Theoretical maximum is 100, however smaller clusters (2 – 10 nodes) are much more standard 15 provides constructed-in examine scaling definitedefiniteprovides built-in write scaling sure (with boundaries*) No records loss in case of node failure No information loss No data loss Replication latency – Milliseconds Operational complexity Requires database, IT, network and storage expertise provided as a cloud-answer Scale-up nodes elaborate with physical hardware, continually requires to exchange servers handy the use of the AWS UI/CLI Scale-out cluster Provision, set up, and configure new servers, except you pre-allocate a pool of idle servers to scale-out on effortless the usage of the AWS UI/CLI Database engine Oracle MySQL or PostgreSQL

    * under certain situations, write efficiency can be restricted and have an effect on scale-out capabilities. as an instance, when diverse periods try and regulate rows contained within the same database block(s).

    SummaryWith the increasing availability of cloud-based options, many companies are seeking for a relational database engine that can provide very excessive ranges of availability, splendid efficiency and simple read scalability—however in a cloud/PaaS mannequin. Amazon Aurora can function an impressive choice solution to industrial database cluster applied sciences, the use of AWS ecosystem accessories and open supply database engines to tremendously in the reduction of complexity and operational database management overhead.

    Datrium declares Oracle Partnership And Oracle RAC Qualification | real questions with brain dumps

    SUNNYVALE, Calif. , Sept.� Datrium, the leading provider of Open Converged Infrastructure for hybrid clouds, nowadays introduced it has been named an Oracle Gold associate.� The company additionally announced qualification of Oracle real software Clusters (RAC) on Datrium DVX, extending the administrative simplicity, effective availability and built-in backup benefits of its Open Convergence strategy to client's Oracle RAC deployments.

    as it groups are searching for options to costly and rigid array infrastructure for mission crucial Oracle RAC deployments, they stumble upon three main challenges with hyperconverged infrastructure (HCI).  When organizations deserve to roll out a small 2-node RAC deployment, HCI cannot offer a 2-node cluster. with a view to deliver the optimum degree of availability, the minimal cluster size for HCI is 5-nodes, which is area to more than twice the Oracle licensing fees.  there is also an availability mismatch between HCI and Oracle RAC. for instance, RAC's constructed-in availability structure ensures that a four-node RAC deployment will continue to run notwithstanding three of the four nodes fail; whereas with HCI, should more than 2 nodes fail, the complete cluster fails. finally, many HCI methods won't have the built-in copy information management to clone construction databases for verify/dev applications with zero efficiency have an impact on.

    Simplifying Oracle RAC Deployments it's all altering with Datrium's introduced help for virtualizing Oracle RAC on its industry-main Open Convergence platform, Datrium DVX.  This new breed of converged infrastructure combines compute, flash-based fundamental storage, and built-in backup--now with guide for Oracle RAC.  With Datrium, purchasers can deploy mixed construction application workloads and look at various/construction workloads in a single platform whereas keeping isolation for most suitable provider tiers. This exciting strategy to convergence addresses considerations with Oracle RAC on HCI and offers purchasers a more suitable server-powered option for their deployments.

    "At Neovera, we now have constructed our reputation on addressing the entertaining needs of our valued clientele with unmatched consumer provider. We were looking to movement off our legacy array infrastructure to a contemporary convergence answer for our Oracle RAC infrastructure that mixed VM-degree administration with amazing availability and bare-metal efficiency," spoke of Scott Weinberg , CEO and founder.  "With Datrium, we received that and more, including conclusion-to-end facts protection and an built-in backup platform which saves us a ton of time and money."

    With Datrium's help of Oracle RAC, scaling is configuration-free.  records services equivalent to erasure coding, global deduplication and compression are all the time-on and there's no should selectively configure efficiency versus efficiency for a given workload-with Datrium you get both. adding one more Oracle RAC node is so simple as cloning a digital machine in VMware vCenter.  And performance continues to be excessive with automated alignment of I/O with the most lively Oracle RAC node and VMware host, eliminating community reads and preserving excessive performance.

    potent Availability, information Integrity and protection With Datrium DVX, servers remain stateless so the place there are N servers, N-1 servers can fail and the DVX is still purchasable. here is well-matched with Oracle RAC which is architected with the equal availability mannequin. 

    in addition to high availability, Datrium DVX offers conclusion-to-end records integrity checking for Oracle RAC, meaning the records written to the RAC node will always suit the records written to both flash and secondary storage. at last, DVX offers conclusion-to-conclusion records safety by using encrypting Oracle RAC statistics on host, in-flight throughout the community, and at leisure on the DVX records Node.

    Datrium DVX also gives Oracle RAC purchasers with effective real-time VM analytics, providing quick insights on the database VM level, enhancing visibility, saving time and rushing effects.

    built-in records management for Oracle RAC Datrium DVX gives near fast recovery for Oracle RAC through featuring consistent native and far flung photo backups of RAC VMs across all VMware hosts, complimenting Oracle RMAN and records guard. Backups are cost with no trouble maintained on Datrium's facts Nodes, which keep both hot and cold facts in compressed and globally deduplicated kind on secondary storage. Backups can also be archived to Amazon net services and managed from a single pane of glass within the DVX console.

    moreover built-in backup, Datrium also quickens construction cycles for Oracle RAC builders with advanced copy statistics management performance. Cloned copies of creation databases are instantly purchasable to software builders or QA engineers, speeding design, development and checking out. 

    "whereas HCI clusters are replacing some types of arrays, they aren't a superb suit for the gold common in business data availability, Oracle RAC," pointed out Brian Biles , Founder and CEO of Datrium.  "Datrium's Open Convergence strategy turned into designed for scalable host isolation and productive cloud information management, so RAC is a very good fit, and we're delighted to be named an Oracle Gold companion."

    Oracle Gold accomplice reputation Datrium has been awarded Oracle Gold accomplice repute, gaining access to huge partner practising, development and demonstration licenses, and different technical substances.  With its Gold-stage popularity, Datrium and Oracle can now collaborate effectively to deliver joint consumers with the best possible solution experience.

    [WEBSITE] Oracle solution page

    [SOLUTION BRIEF] Oracle solution quick

    Pricing and Availability Oracle RAC support is supplied at no can charge within the subsequent DVX utility release, obtainable subsequent quarter. Single instance Oracle is purchasable on DVX today.

    trade consciousness Gartner, Cool vendors in Storage applied sciences, 2016, April 2016 - a fab seller

    About Datrium Datrium is the leader in Open Converged Infrastructure for hybrid clouds, a new breed of converged infrastructure past hyperconvergence. Datrium converges compute, basic and secondary storage, and archive to cloud for vastly less complicated administration, efficiency and insurance plan of deepest and hybrid cloud infrastructure.  The business is led via the CTOs and founders from information domain and early important engineers from VMware. For extra counsel, talk over with and observe @datrium on Twitter.


    View fashioned content material with multimedia:

    supply Datrium $page_length='lengthy'; ?>

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    What to find out about Oracle's revamped DBA certification program | real questions with brain dumps

    Oracle supplier has absolutely revised its database administration (DBA) certification software for edition 9i of its database utility. The important alterations considering that the Oracle8i certification consist of:
  • a brand new, teacher-led training requirement.
  • Restructured, more challenging exams.
  • Certification cut up into three "tiers."
  • efficiency-based testing.
  • i'll provide you with a tour of the new program and its requirements, what it capacity for those looking for certification, and how those with 8i certification may be affected.

    teacher-led working towards required…by a long way, the most controversial of the changes is a new requirement, announced in June, that 9i DBA certification candidates take as a minimum one instructor-Led practicing (ILT) category, either from Oracle institution or from an Oracle-authorized working towards center such as a college or technical faculty. Oracle had extended an exemption deadline for these attracted to pursuing 9i certification to September 1 by means of allowing them to take one examination in the 9i DBA OCP track as a substitute of the ILT class.

    The approximately 140,000 latest Oracle licensed specialists (OCPs) are exempt from the requirement, as are candidates already in the software. everyone else should go to type.

    In an interview, Mike Serpe, certification director at Oracle, talked about that youngsters many third-party practising centers do a fine job, others misinform candidates into believing that they can study a booklet or attend a boot camp and be qualified to administer a database.

    "Our main intention is to make sure that the people we certify are in fact able to go out and do the work," he referred to.

    …but now not welcomed through everyoneWhile some consider Oracle’s philosophy, they balk on the implementation. Steve Bobrowski, founder and CEO of the training business Animated researching, Inc., these days highlighted Oracle’s exchange in his newsletter. He says his valued clientele are searching on the circulate as an effort with the aid of Oracle to enhance revenues at the rate of certification candidates.

    "there were a lot of consumers...that had been furious about it," he said. "One in selected...had taken instructor-Led working towards courses not from Oracle, became able to take the tests, and Oracle changed into going to require him to take the accurate equal category once more from them. He turned into irate."

    Serpe says that or not it's a misconception, besides the fact that children, that candidates should come to Oracle school—the enterprise’s education division—to meet the requirement. via Oracle's academic Initiative, the same courseware has been made obtainable to a lot of universities and technical colleges.

    There are additionally reduce-can charge, non-Oracle alternatives accessible. anyway, if this have been an attempt by using Oracle to generate profits, it would be a bad one, Serpe says, as a result of a single principal customer's licensing charges dwarf the amount of money the requirement would generate for Oracle.

    Bobrowski's own analysis is that the requirement won't accomplish what Oracle wishes, since the more superior courses all have Introduction to Oracle9i SQL as a prerequisite, so that is the path every person will take to meet the requirement.

    "I wager Oracle feels that in case you get some palms-on practising doing SQL, you are organized to do advanced administrator stuff like backups and healing and performance tuning," Bobrowski referred to. His counsel to Oracle: enrich the testing technique; don't restrict candidates' selections about how to attain their practising.

    checks restructured and tougherNot all the changes were that controversial. Two areas that bought lots of consideration from Oracle are the improve of the content material and structure of the exams.

    The original 5 exams required of Oracle8i OCP candidates—Introduction to Oracle: SQL and PL/SQL (1Z0-001); Oracle8i: structure and Administration (1Z0-023); Oracle8i: Backup and recovery Workshop (1Z0-025); Oracle8i: performance Tuning Workshop (1Z0-024); Oracle8i: community Administration (1Z0-026)—had been compressed into 4.

    The four assessments at the moment are:

  • Introduction to Oracle9i: SQL (1Z0-007).
  • Oracle9i Database: Fundamentals I (1Z0-031).
  • Oracle9i Database: Fundamentals II (1Z0-032).
  • Oracle9i Database: efficiency Tuning (1Z0-033).
  • The cloth from the fifth 8i exam, on Oracle's networking features, has been folded into the different tests, essentially Fundamentals II. Bobrowski sees this as a superb flow: network configuration is a vital a part of database systems and or not it's appropriate for OCP candidates to come across it prior in their studies.

    A newly revised Oracle9i Candidate e book is attainable at Oracle's web website. It contains all the requirements, together with what cloth is coated on every check.

    The Introduction to SQL exam is attainable on-line, in addition to at a testing middle. No preregistration is required for the on-line exam, and the fee is lower too: $90 in its place of the general $a hundred twenty five. This makes the first examination greater attainable, in Oracle's view.

    if in case you have handed the prior examination, Introduction to Oracle: SQL and PL/SQL (1Z0-001), you’ll receive credit score for it towards the 9i certification.

    the first Fundamentals exam is corresponding to the 8i Database Administration exam; it covers primary structure, statistics storage, and safety.

    The exam layout is rather a little bit tougher as smartly. as a minimum 50 to 60 percent of questions about a standard exam are situation-primarily based, in keeping with Serpe. They require the candidate to follow their skills to real cases, in its place of simply regurgitating memorized guidance.

    "The 9i success costs for these exams [have] dropped by means of greater than 20 % over the 8i success costs," Serpe observed. The bar has been set larger.

    Three-tier certification trackIn the 8i certification tune, candidates had been required to move all five exams earlier than incomes a credential. The 9i application includes three linked DBA credentials, now not just one.

    "we have now been listening to from our clients and the associate neighborhood that they wanted to be capable of greater differentiate the different stages of capability within somebody's profession,” Serpe mentioned.

    to accomplish this, Oracle break up the OCP into two ranges, then added a third above those two:

  • Passing the primary two assessments qualifies the candidate as an Oracle licensed affiliate (OCA). No teacher-Led practising requirement applies at this level. OCAs are certified to take on junior-level DBA jobs or work as part of a building team as a database analyst.
  • Oracle licensed professional (OCP) requires all 4 checks plus the ILT classification. An OCP is placed to behave independently as a full DBA in charge of installing, configuring, and tuning Oracle databases. The fourth exam, on efficiency Tuning, turns into available in September 2002.
  • the brand new stage, Oracle licensed master (OCM), will develop into purchasable in October 2002. It requires the candidate to finished two advanced DBA classes at Oracle tuition, plus a unique, two-day, lab-primarily based examination referred to as a practicum. Candidates will comprehensive a number of situations and troubleshooting exercises to show their ability with the Oracle database. OCMs are the Oracle gurus who will also be expected to do virtually anything else with Oracle technology.
  • The way forward for Oracle certificationOracle is investing closely in its certification software, no longer handiest to increase its visibility among employers however also to provide greater price to the candidate.

    all over the following couple of quarters, Oracle plans to inform its OCPs about revised membership merits, including decreased-charge schooling (free, in some cases), particular events and VIP medication at conferences, and networking opportunities inside Oracle's companion neighborhood.

    predict performance-based practising to filter down from the OCM level to the mainstream OCP, says Serpe. "in case you wish to get your pilot's license, you do not just take a diverse-option check."

    He sees no change between such specialists and DBAs, whose movements on the job can affect an entire enterprise and its applications. Requiring certification candidates to show advantage in a lab environment will increase the credibility of the program so hiring managers can depend on it.

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    Oracle 1Z0-023 Exam (Architecture and Administration) Detailed Information

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