1Z0-499 exam Dumps Source : Oracle ZFS Storage Appliance 2017 Implementation Essentials
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Test title : Oracle ZFS Storage Appliance 2017 Implementation Essentials
Vendor title : Oracle
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actual hybrid commercial enterprise cloud storage programs covenant the better of each on-premises infrastructure and public cloud. They present the performance, security and governance of indigenous storage fundamental for a lot of mission-vital company purposes -- now not to point out the on-demand elastic scalability and utility economics of public clouds.
however discovering genuine hybrid cloud equipment to serve important, enterprise-class, database-driven purposes will moreover exist problematic. This gaping gap available in the market has left commerce IT professionals and enterprise utility owners stuck on legacy infrastructures.
however, there has been significant progress. Oracle Cloud Converged Storage, launched final month, integrates storage capabilities throughout its database, enterprise purposes, enterprise storage infrastructure and public cloud. essentially, its latest on-premises Oracle ZFS storage arrays internally and organically lengthen into public Oracle Cloud storage (which is moreover made of ZFS storage arrays) -- no gateway integration or third-party utility required.
Oracle Cloud Converged Storage appears like what many of us thought hybrid storage changed into presupposed to glance like. Yet, no excessive-efficiency, commerce storage equipment has ever basically delivered a staunch indigenous hybrid cloud ability. Why haven't different providers, akin to IBM and Dell EMC, provided hybrid cloud storage to leverage their enterprise storage and cloud tools? those companies require a hardware or application gateway to circulation records to the public cloud, unlike Oracle, which doesn't require one.
This failure to convey what valued clientele in fact want may exist as a result of inner competitors between legacy infrastructure and separately managed cloud divisions. significant storage vendors' profits and gains possess declined the past few years, as a result of elements such as the cloud, hyper-convergence and greater software-described products, a using constrain in the back of Dell's EMC acquisition.
When companies are looking to evolve legacy architectures into modern hybrid storage, they readily enact not want to cope with massive bundles or bunches of ingredients and disparate cloud functions that require integration. In a way, here is moreover about recognizing the market vogue of how enterprises are seeking for greater convenient converged products in everysingle their IT transformation projects.
proper hybrid cloud storage may quiet exist fundamental to personal and operate. Simplicity in IT inevitably ends up in a lessen complete freight of ownership and lower risk, whereas complexity always raises implementation overhead, ongoing administration prices and lowers carrier stages. while there are older methods to hybridized storage functions with external cloud gateway items, colocating deepest storage with public clouds (e.g., NetApp deepest Storage) or accelerating statistics switch (e.g., Attunity CloudBeam), these everysingle add layers of know-how and cause additional burdens to companies and database owners and operators.Oracle ZFS Storage appliance
The Oracle ZFS Storage appliance is based on Oracle's stronger version of ZFS, initially inherited during the acquisition of solar Microsystems and extremely augmented over the years. It provides the high-performance, availability and commercial enterprise facets that IT appears for in production statistics middle storage.
This latest unlock is inherently cloud-enabled, with indigenous (and completely configurable) tiering to the universal public Oracle Cloud.
The Oracle Cloud is becoming fairly ordinary with application owners and Oracle database administrators who locate that it's a natural (and low-possibility) public cloud alternative for Oracle database cloud capabilities. once storage home equipment are introduced into an business, many IT storage domain admins determine it fascinating for regular workloads too, providing better cost and performance compared to getting older legacy community-connected storage methods.removing the risk of hybrid cloud storage
There possess moreover been absolute horror studies from firms that possess tried to stitch together disparate on-premises storage, cloud gateways and commonplace public cloud providers. The number of advanced go-supplier interactions, the volume of finger-pointing between carriers and the sheer frustration of attempting to troubleshoot faraway service interactions on a public cloud (with someone who is never an expert on your exact workload) has saved many from leveraging hybrid cloud opportunities in established, an bad lot less for commerce database-driven applications.
With Oracle Cloud Converged Storage, businesses exigency only accomplish one telephone title to Oracle uphold to determine and fix issues any site in the conclusion-to-conclusion hybrid platform.
Oracle Cloud Converged Storage is relatively low chance because Oracle's cloud storage is in reality made up of Oracle ZFS Storage appliances. So, the selfsame storage that runs on consumers' premises, runs in Oracle's public cloud. actually, Oracle province assessments everysingle its beta storage releases in its own cloud first, at awesome scales that dwarf anyone enterprise (600 petabytes+ and starting to exist quick). now not most effectual does having the equal physical storage on either side of the hybrid cloud connection obtain rid of a entire raft of expertise incompatibility considerations, but complications that could advance up develop into a mighty deal less complicated to solve.
For those in search of the benefits of staunch hybrid cloud storage, it exist time to inform your storage seller that you simply exigency utterly cloud converged infrastructure, and never some complicated amalgamation.
+comment Oracle is using its in-house public cloud to supply returned-end storage for its on-premises ZFS appliances, including performance to its walled hybrid cloud backyard.
form of the contrary of bringing its Exadata cloud service on-premises, Oracle is taking its ZFS on-premises kit up into its public cloud.
The newest ZFS Storage equipment software unencumber includes Oracle's ZFS Cloud utility, which means appliance statistics may moreover exist moved to/from Oracle's own public cloud, strengthening the ZFS Storage equipment's position in Oracle's hybrid cloud push.
Larrysco advertising talk says this eliminates "the want for external cloud gateways and fending off the charges of software licenses and cloud entry licenses – AKA 'cloud entrance taxes' – charged by means of legacy on-premises companies for the privilege to access the universal public cloud." It says it is bringing its public cloud and ZFS equipment collectively in a co-engineered pair of items.
As Oracle says, the ZFS Storage appliance is the storage groundwork for Oracle Public Cloud – so the co-engineering isn't any massive deal.
It says medium on-premises carriers can't bring the identical public cloud integration – are you listening NetApp? – and public cloud carriers can't convey on-premises appliances. So King Oracle suggestions the hybrid NAS filer/public cloud world.
Oracle claims coincident purposes can entry facts both in the on-premises ZFS Storage appliances and its Storage Cloud with no app alterations. It makes an excellent long listing of issues clients can disburse this ZFS cloud storage for:
This newest ZFS Storage equipment unlock moreover aspects:
Oracle claims its fresh dedupe and compression information discount expertise reduces the backup storage footprint through up to 9x and bandwidth calls for via up to 4x. That will exist welcome as many ZFS-the usage of suppliers, similar to Nexenta, possess replaced the common indigenous ZFS information discount tech.+comment
The hybrid cloud is a concept adopted by means of nearly everysingle on-premises server and storage array providers. commonly it's an Amazon public cloud accessed via Amazon's S3 protocol. but hyperlinks are moreover being made to Microsoft's Azure and, lagging the container, Google's cloud.
as an instance, NetApp has publicised its records cloth thought by which on-premises and public cloud NetApp storage is a sole entity with records pitiable between both as applicable. as an instance on-premises arrays can returned up information to the Amazon and Azure clouds.
Avere gives FXT front-end filers and gateways to hyperlink on-premises NAS to public clouds and accelerate public cloud storage entry. Its FXT application can moreover flee in the public cloud.
Public Cloud storage can moreover exist viewed as a sluggish-access archive tier of storage. To obtain sooner access to cloud-kept records you can location arrays in public cloud regional entry centres, as NetApp is doing. A more typical approach is to enact the compute within the public cloud as well as holding the kept statistics there, and let the cloud issuer obtain the kept information to the compute straight away.
When on-premises suppliers hyperlink to Amazon they disburse its S3 protocol, and here's becoming so ordinary that it's nascence to seem as an on-premises entry protocol as well; for specimen with inescapable remonstrate storage items.
What Oracle is doing is distinct.
it is linking its on-premises ZFS appliance with its own ZFS-based mostly storage in its personal Oracle public cloud, no longer Amazon, Azure or Google. The ZFS facts continues to exist in Oracle-controlled facilities everysingle of the time and Oracle doesn't cede wield to any public cloud issuer with this latest announcement.
What they believe about Oracle would want to remark gyrate up is that its database clients, who disburse rivals' on-premises arrays and are relocating information to Amazon, Azure or Google from them, start to disburse Oracle's public cloud in its site as a result of, it would argue, it exist low-cost and the on-premises-public cloud integration is plenty improved.
The records stays in a sole organization locality and would not exigency CPU cycles expended on changing entry protocols and records formats.
purchasers who possess experienced Oracle's forceful approach to pricing may feel that to cede even more wield over information placement to Oracle may well exist a nasty idea. retaining facts in competing public clouds may assist accomplish Oracle play excellent and forestall it raising expenses once purchasers possess no exit from the walled hybrid backyard Oracle is building.
With everysingle this in mind, present ZFS Storage equipment customers may neatly are expecting contact from Oracle's channel to contend Oracle Storage Cloud integration.
take a glance at Oracle Cloud Storage privilege here and possess a glance at Oracle’s info on the ZFS Storage appliance here. ®
REDWOOD SHORES, CA--(Marketwired - Apr 28, 2014) - Oracle ( NYSE : ORCL )
information summary clients across a huge latitude of geographies and industries are adopting Oracle ZFS Storage appliances for Oracle Engineered techniques backup and restoration. With the fresh ZS3 string for backup, Oracle ZFS Storage ZS3-BA, purchasers possess a pre-configured, pre-racked acknowledge co-engineered with Oracle Database to supply exorbitant backup and restore efficiency with superior efficiency to assist meet SLAs. in addition to exorbitant performance, ZS3-BA presents 5x diminish three-year TCO over EMC records domain 990(1) for Oracle Engineered methods information insurance policy.
DB Schenker Rail "as the main rail freight company in Europe, DB Schenker Rail requires speedy and reputable entry to mammoth quantities of data. Oracle Exadata Database machine and the Oracle ZFS Storage equipment has been the privilege acknowledge for us, enabling very speedy backup and repair times," stated Dominic Marx, Head of enterprise Intelligence Competence core, DB Schenker Rail. "we now possess been impressed with exorbitant compression fees got the usage of Hybrid Columnar Compression with the Oracle Exadata and Oracle ZFS Storage equipment, and the undeniable fact that the compression levels are maintained via the ZFS Storage equipment, so they recognise can freight and capacity discount rates on properly of exorbitant efficiency."
clinic Alemão Oswaldo Cruz "Hospitals possess very selected commerce and IT necessities comparable to availability 24 hours a day, seven days every week. The Oracle ZFS Storage appliance become a herbal choice for Oracle Exadata Database laptop backup because of its efficient and large capability storage, and it is already absolutely integrated with Oracle Exadata," talked about Denis da Costa Rodrigues, manager of suggestions know-how, medical institution Alemão Oswaldo Cruz. "As a fraction of the solution, they moreover carried out Oracle energetic statistics shelter, which additional raises their facts coverage capabilities. The typical Oracle Exadata - ZFS Storage acknowledge has now not only stronger their skill to bring top notch healthcare features, however additionally gives the exorbitant availability, agility and data insurance policy to serve their operations."
SunGard Availability capabilities "Over the closing 5 or 6 years, we've considered their statistics double then triple in measurement, placing existent stress on their infrastructure," referred to Hal Moretto, Director, commerce Infrastructure, SunGard Availability features. "the usage of RMAN and Oracle's ZFS Storage equipment to backup the Oracle Exadata Database computing device, they now possess been able to create encrypted backups and leverage the InfiniBand connectivity between ZFS and Exadata to help throughput, as well as replicating the backup to their offsite D/R region to a 2nd ZFS storage equipment by the disburse of storage replication, making that backup set available for offsite restoration if required."
Oracle's fresh ZS3 string for Backup enhances Engineered techniques exorbitant performance, Helps reduce back Backup and healing risk and value Over EMC
About Oracle Oracle engineers hardware and application to work collectively within the cloud and to your statistics middle. For extra suggestions about Oracle ( NYSE : ORCL ), consult with www.oracle.com.
Oracle and Java are registered logos of Oracle and/or its affiliates. other names could exist logos of their respective owners.
(1) Three-12 months TCO calculated the usage of non-discounted list prices from publicly accessible data. EMC statistics domain DD990, 12xES30 - 15x2TB SATA 7.2K RPM (supply: http://www.ironbow.com/Contracts/ContractVechicles/~/media/information/PDFs/Contracts/IronBow_CATALOG_IV.pdf) with EMC DD990 Replicator (source: http://www.pcsuperstore.com/products/11937588-EMC-LREP990.html) and EMC DD990 VTL includes 2 x PCiE playing cards, DP, DG (supply: http://www.emc.com/microsites/stateofmsepl3658/pdf/EPL_Price_List_-_2013-09.pdf)
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Oracle unveiled a fresh "cloud converged storage" option to enable customers to extend their on-premises storage...
into the company's public cloud without an external cloud gateway.
Oracle's ZFS Operating System 8.7 launched this week allows users to transfer file- and block-based data between the high-performance ZFS Storage Appliance and the object-based Oracle Storage Cloud. Data going into the appliance can moreover exist object-based.
Steve Zivanic, vice president of storage and cloud IaaS and converged infrastructure at Oracle, said Oracle cloud storage "looks, feels and acts" just like another disk to the ZFS Storage Appliance. He compared the flat of integration to Apple's iPhone and iCloud storage.
Zivanic said Oracle's fresh cloud converged storage option would enable customers to purge the exigency to buy a cloud gateway, as well as the "cloud entrance tax" charged by some backup software and on-premises infrastructure vendors. He said customers asked Oracle for a route to avoid paying for "cloud access licenses" to jog data out of their on-premises storage hardware.The Oracle ZFS Storage Appliance from Oracle Corp.
"We were thinking they meant cloud service subscriptions. But, no, they were very clear," Zivanic said. "What they meant is they are actually paying hardware vendors just for the privilege to subscribe to public cloud storage. That's analogous to paying AOL for the privilege to access the internet circa 2000. There's no value add, and customers eventually glance for more direct routes to avoid this middle layer."
He said the Oracle ZFS Appliance supports OpenStack Swift APIs and is designed to transfer file- and block-based data only to Oracle cloud storage. Zivanic said a customer would exigency to buy a third-party gateway to disburse an outside public cloud such as Amazon or Google, but Oracle would not freight a "cloud access license" fee.
"We are not integrating the ZFS Storage Appliance with anything but the [Oracle] Storage Cloud with this particular announcement," Zivanic said. "If somebody wants to disburse a ZFS [appliance] with any other cloud, they can definitely disburse that. There's absolutely no lock-in. Everything they possess is based on industry standards."
Zivanic said the Oracle ZFS Storage Appliance does not uphold the Amazon S3 API, but the Oracle Storage Cloud does uphold the favorite S3 API.Hard to flit from cloud to cloud
Marc Staimer, founder of Dragon Slayer Consulting, said upcoming products direct to serve enterprises jog data from one cloud to another, but it would quiet exist difficult to shift data between public clouds.
I'm not totally surprised that Oracle has rolled this out, but I am surprised that they obtain to exist the leader in the market here. Mike Matchettsenior analyst and consultant, Taneja Group
"When you sequel data in any of these clouds, it's like the "Hotel California" from The Eagles. You can check in, but you're not going to check out very easily because of the colossal amount of time and elevated cost to jog it out," Staimer said. "And, more importantly, you're not going to obtain the free data migration services to jog it in. How are you going to jog petabytes of data over the wire in any short epoch of time? Cloud storage is incredibly sticky."
Use cases that Oracle cited for its cloud converged storage comprehend backup and recovery, archives, evolution and testing, snapshot replicas and elastic application storage. Oracle said the fresh option is moreover well-suited to DevOps environments by enabling the disburse of a sole API for both on-premises and Oracle cloud storage.
Dave Vellante, chief researcher at Wikibon, said Oracle's approach of using the selfsame infrastructure in the cloud as on premises is a "smart move" and unusual in the IT business. He said Microsoft (with its Azure Stack) and, to a lesser extent, IBM, advance closest at this point, and major clouds such as Amazon Web Services possess no on-premises strategy.
"Everyone talks about hybrid cloud, but no one really has integrated hybrid cloud," Vellante said. "What they possess is some flat of orchestration and management, but often it's clumsy, not well-documented and definitely not seamless. If Oracle delivers, this is a strong example. They're not 100% there in terms of execution, but their strategy and where they're spending money is pitiable toward that direction."
Oracle's Zivanic said the ZFS Storage Appliance runs 70% to 90% of everysingle I/O through DRAM cache on the front discontinuance and offers disk, flash and cloud options for persistent storage. An all-flash storage pool is a fresh option enabled with the latest OS release.
The ZFS cloud software that is fraction of the fresh 8.7 OS release is available at no additional cost to customers.
Dragon Slayer Consulting's Staimer said he compared the cost of Oracle cloud storage to options from other major vendors and create Oracle's offerings to exist equivalent or less, depending on the service and any cloud access storage "taxes" such as cloud gateways or third-party software that might exigency to exist taken into account.Rollout fraction of Oracle pledge
The rollout is fraction of Oracle's pledge to jog cloud-first with its technology, which was a key strategy with its Oracle Database 12c Release 2 in September 2016.
"I'm not totally surprised that Oracle has rolled this out, but I am surprised that they obtain to exist the leader in the market here," Mike Matchett, a senior analyst and consultant at Taneja Group, wrote in an email. "Why doesn't Dell EMC possess this straightforward offering with their enterprise storage and cloud solutions? Despite having everysingle the parts at hand for years, they failed to integrate together the obvious and long-desired converged solution."
He said some legacy vendors don't even present cloud services. "Maybe they were hoping this cloud thing would just blow over," Matchett wrote.
Matchett said most Oracle storage makes its route into enterprise through the database, but he thinks users outside the database realm might want to glance at Oracle storage because of its cost, scalability, performance and the fresh converged cloud offering.
Oracle moreover added deeper integration between the ZFS Storage Appliance and the Oracle Database through the Oracle intelligent Storage Protocol 2.0. The database passes along "hints" on every I/O to enable the ZFS Storage Appliance to prioritize I/Os and auto-tune the system, according to Nancy Hart, director of product management for the Oracle ZFS Storage Appliance.
One key capability for customers using ZFS Storage Appliance with Oracle cloud storage is data reduction. The system stores the hash table for deduplicated/compressed data in the metadata that is wrapped up with the remonstrate in Oracle cloud storage, according to Hart. So, if a user deduped data at one data hub and stored it in the cloud, and a colleague wanted to restore the data to a ZFS Storage Appliance in another city, the colleague could rehydrate the data because the hash table comes with it, she said.
Learn how virtualization management tools Oracle Enterprise Manager Ops hub and OpenStack can facilitate the process of automating virtualization.This chapter is from the engage
Early computers were expensive, prompting their owners to squeeze everysingle practicable value out of them. This drive led to the introduction of time-share operating systems, on which many workloads may flee at the selfsame time. As per-unit cost dropped, single-user, single-workload operating systems became popular, but their adoption created the mindset of “one workload per computer,” even on servers. The result was an explosion of under-utilized servers. The elevated costs of maintaining so many servers led to the widespread embrace of virtualization, with the goal of reducing the quantity of servers owned by organizations. Consolidation via virtualization may possess reduced a company’s hardware acquisition costs, but it did nothing to help the organization’s maintenance costs. Ultimately, managing VEs one at a time is no easier than managing one server at a time.
Many virtualization management tools exist on the market that can facilitate the process of automating virtualization. This chapter discusses two of them: Oracle Enterprise Manager Ops hub and OpenStack.
Oracle Enterprise Manager Ops hub 12c is fraction of the broader Oracle Enterprise Manager product. Whereas Enterprise Manager Cloud Control focuses on the higher discontinuance of the stack (i.e., database, middleware, and applications), Ops hub addresses the lower discontinuance (i.e., storage, operating systems, hardware, and virtualization).
Ops hub is designed for complete life-cycle management of the infrastructure layer, which includes both Oracle hardware and operating systems. From a hardware perspective, it is capable of functions such as the following:
Discovery of fresh and existing hardware
Upgrading server firmware
Installing the “bare metal” operating system
Monitoring hardware components and opening service requests automatically if a hardware fault occurs
Providing console access to the system
Other management actions such as power-off/on, set locator lights, and others
Paramount in Ops Center’s functionality portfolio is managing the two primary virtualization technologies: Oracle Solaris Zones and Kernel Zones, and Oracle VM Server for SPARC. Provisioning virtual environments (VEs) including those types includes performing any required preparation of the hardware and operating system.7.1.1 Architecture
The architecture of Ops hub consists of three main sections:
Enterprise Controller: The main server component of Ops Center. The enterprise controller delivers the user interface and stores the enterprise-wide configuration information. An organization that uses Ops hub will possess at least one enterprise controller system that provides communication back to Oracle for service requests, automated patch and firmware downloads, compress validation, and other activities. However, many calamity recovery sites comprehend their own enterprise controller so that they can continue operations management, if needed, during service outages that paw the comfort of the system.
Proxy Controller: The component that communicates to the managed assets, including hardware assets, operating system assets, storage assets, virtualized assets, and others. If everysingle of the systems being managed by Ops hub are in one data center, only one proxy controller is needed, and it can flee in the selfsame server as the enterprise controller. Alternatively, you can install multiple proxy controllers per enterprise controller. gauge configurations disburse one or more proxy controllers per data center, to expand the gain of the Ops hub environment to other data centers, networks, or DMZs.
Agent: A proxy controller typically manages deployed software components via a software agent installed on the system. When an agent is not appropriate, an operating system can exist managed without one. The Ops hub agent supports Solaris 8, 9, 10, and 11.
Figure 7.1 depicts the Ops hub architecture.7.1.2 Virtualization Controllers
The Ops hub administrator can select from two types of virtual environments. One type uses Solaris Zones; this type is simply called a global zone. The other type is a control domain, whose title refers to the disburse of OVM Server for SPARC. everysingle systems that can exist managed by Ops hub can exist the global zone type. On modern SPARC systems, you can select either a control domain or a global zone.
After you accomplish that choice, Ops hub deploys the confiscate type of agent software in the management space, either the computer’s control domain or global zone. This agent is called the virtualization controller (VC). Once its installation is complete, you can create the confiscate type of VEs on that server: rational domains for a control domain, or Solaris Zones for a global zone.7.1.3 Control Domains
Control domains (CDoms) manage Oracle VM Server for SPARC rational domains (LDoms) on a computer. When you disburse Ops hub to provision a CDom, you select the operating system, CDom hardware configuration (RAM, cores, and I/O), and names of virtual services provided to other domains. The service names comprehend those for virtual disk services, network services, and console services. You can moreover initialize advanced Solaris features at the network layer for improved redundancy and performance, such as link aggregation. Advanced configurations, such as SR-IOV, service domains, and root intricate domains, are moreover supported.
Once the CDom is provisioned, the Ops hub user can originate edifice guests. The guests must boot from either a virtual or physical disk. Using virtual disks provides the greatest flexibility at an extremely minimal performance cost. Virtual disks can reside on a number of physical media available to the CDom:
A local file system
A local disk
An iSCSI LUN
A NAS file system
A FibreChannel LUN
When creating LDom guests, the Ops hub user creates one or more rational domain profiles that define the make-up of the guest:
Name, CPU, core, and reminiscence allocation
Full core or vCPU allocation
Architecture of the CPUs
Storage (local, iSCSI, NAS, FC)
When this information is combined with an operating system provisioning profile, the user can both create and provision one or more LDom guests quickly and easily by supplying a petite amount of information, such as an IP address.
Further, the user can create a deployment design to create multiple LDom guests with a sole flux through the Ops hub user interface. After the deployment design has been created, it can exist used very easily to quickly create a large number of VEs, each ready to flee a workload. Each of these guests will comprehend everysingle of the configuration details of the library image that was deployed, ensuring similarity for applications.7.1.4 Global Zones
Global zones can exist used to host applications, Solaris Zones, or any combination of those. Within the context of Ops Center, for a rational domain to comprehend zones, the “global zone” agent must exist installed in the LDom.
The Ops hub user may create a Solaris Zone profile that defines how zones will exist created. Configuration options comprehend the following:
Dedicated or shared reminiscence and CPU resources
Type of zone (native or branded)
Source of installation (e.g., operating system archive or network-based package source)
Storage configuration (FC, iSCSI, or local disk)
IP/Network configuration (exclusive or shared)
Root and administration passwords
Again, the user can create a deployment plan, based on a zone profile, to create multiple similar zones.7.1.5 Storage Libraries
Ops hub tracks which LUNs and file systems are allocated to which guests, and ensures that more than one guest does not access the selfsame LUN simultaneously. This constraint applies to both environments created with Ops hub and existing environments that are discovered by, and integrated into, Ops Center.
Ops hub manages this storage by using an underlying storage concept called storage libraries. Storage libraries are shared storage that is used for VEs, either for boot or data storage. Three types of storage can exist used for storage libraries:
A static library, using LUNs created ahead of time:
A dynamic library, using a ZFS storage appliance, creating LUNs as needed
Ops hub includes another feature for virtualization that greatly enhances the automation, mobility, and recoverability of both LDom and zone environments—namely, a server pool. A server pool is a collection of similar VEs. It can exist a group of zones or LDom hosts (CDoms), but not both types. A server pool of Solaris Zones must comprehend servers with the selfsame CPU technology, either SPARC or x86.
For a control domain server pool, Ops hub manages the placement of LDoms into physical computers using its own rules, guided by configuration information that the user provides and the current load on those computers. Ops hub can moreover dynamically equipoise the load periodically, among the servers in the pool.
A global zone server pool is treated the selfsame way: Ops hub runs the zones in the servers, or LDoms, according to its rules and configuration information.
A server pool consists of the following components:
Shared storage libraries (FC, NAS, iSCSI)
Shared networks—a very petite NAS share used to store guest metadata
The metadata comprises everysingle of the information and resources for the guest. It is used for both migration and recovery scenarios.
Server pools enable two main mobility and recoverability features to exist used in conjunction with virtualization—migration and automatic recovery.7.1.7 Migration
Guests can migrate between hosts within a server pool. Depending on the underlying virtualization technology, this migration will either exist “live” or “cold.” In live migration, the guest VE is moved to the destination without any interruption of the VE’s operation. In contrast, chilly migration requires stopping the guest and restarting it on another host in the pool. Ops hub provides a simple route to automate the safe migration of guests from the central browser interface. It performs preflight checks to ensure that a guest can migrate and that the migration will succeed prior to initiating the actual migration step.7.1.8 Automatic Recovery
Automatic recovery resolves a software or hardware failure without any user interaction. In the event of a server failure, guests on that member of the pool are automatically restarted on remaining, hale hosts in the pool. Each guest that is no longer running will exist automatically restarted on a hale host in the pool.
For example, in a pool of five servers, imagine that Server 1 suffers a hardware fault and stops responding. Ops hub will restart the guest(s) that had been running on Server 1 on the remaining servers in the pool. Ops hub uses internal algorithms to determine which hosts are hale and possess adequate resources. It uses placement rules provided when the pool was constructed to select the host on which each guest is restarted.7.1.9 Layered Virtualization
Ops hub supports and helps automate a very favorite “layered” virtualization technology. In this technology, one layer of virtualization runs underneath another layer.
The pool administrator can create a CDom server pool, where multiple LDoms are fraction of the pool. You can then disburse Ops hub to create multiple zones in one or more LDoms (see figure 7.2). If you disburse layered virtualization, instead of migrating or automatically recovering at the zone level, those operations are handled at the LDom layer.
When you live migrate an LDom that has zones, the zones are automatically migrated with the LDom, and enact not experience any downtime. When an LDom is automatically recovered, the zones will moreover exist recovered and restarted automatically.7.1.10 Summary
Virtualization technologies enable efficient consolidation, but require efficient management tools. Data hub staff can disburse Oracle Enterprise Manager Ops hub to easily manage hundreds or thousands of VEs in multiple data centers, leveraging its efficient architecture to provision, monitor, and manage those guest VEs.
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