IBM Assess: IBM Tivoli Storage

Is Nagios The future of Monitoring For IBM i? | killexams.com Real Questions and Pass4sure dumps

November 12, 2018 Alex Woodie

For a long time, know-how gurus became to dependent frameworks from IBM Tivoli, CA, Hewlett Packard, and BMC (“The huge 4”) to display screen their hardware and software stacks. however the open supply world has caught up with these closed monitoring environments, and a assignment dubbed Nagios is poised to be the go-to platform for IT monitoring, including on IBM i.

Nagios, if you aren't ordinary, is a free and open supply software product that gives monitoring and alerting for servers, community equipment, applications, and the array of functions that companies more and more rely on. The utility –backed via the obligatory recursive acronym “Nagios Ain’t Gonna Insist On Sainthood” – become in the beginning developed by means of Ethan Galstad returned in 2002 to run and computer screen Linux programs, which turned into just starting to make headway in enterprise records centers.

through the years, the C-based software has been extended to assist an array of object types, together with host substances like processor load, disk and RAM usage, and gadget logs for a majority of commonplace operating methods, together with IBM i. The full of life Nagios neighborhood has created a wide range of Nagios brokers which have prolonged the framework to an estimated 5,000 instruments.

Nagios is an open supply device that makes it possible for directors to display screen their IT gear and purposes.

On the community aspect of issues, Nagios Core (because the open source product is general) displays routers, switches, and different gear, and helps SMTP, POP3, FTP, and SNMP protocols, among others. All remote monitoring may also be encrypted, and it also presents a plug-in that lets clients create their personal displays in plenty of languages.

facts accrued with the aid of lively and passive Nagios plug-ins is routed into the Nagios server, the place the records is sorted and signals are despatched out. clients can consume alerts in plenty of techniques, including through a web browser, via SMS pagers, and through e-mail. With an easy glance at the Nagios dashboard on a phone, a programs admins can see if essential servers, system, and services are alive or useless.

The Nagios Core server software also can work with a “circular-robin database” (RRD) to simplify the storage and querying of time-collection information. With RRD, admins can dive deeper into Nagios facts and look at graphs to see performance trends. And with a bit setup forward of time, Nagios can be configured to instantly reply to routine as they occur, or escalate alerts to other individuals.

corporations that want greater than what Nagios Core has to present can find it from Nagios organisations, the business outfit at the back of the open supply assignment. The St. Paul, Minnesota-primarily based enterprise, which employs Galstad, extends Nagios Core with a few choices, together with Nagio XI, which aspects a extra extensible front-conclusion and a MySQL-based back-end. Nagios XI additionally brings an improved consumer experience with extra powerful graphs and more desirable dashboards.

IBM i clients can use Nagios to monitor 15 metrics with the Nagios Plug-Ins for IBM i beta.

lamentably, Nagios organizations doesn’t support IBM i. however which you could get a Nagios distribution for IBM i from a little outfit called international business Machines. In 2017, massive Blue shipped a beta edition of an IBM i plug-in designed to feed data from the IBM i sever into the open source Nagios Core product or Nagios XI.

in keeping with a developerWorks page, the IBM i Nagios plug-in collects 15 different statistics points from IBM i servers, together with issues like CPU and disk utilization, ASP usage, variety of energetic jobs, and long-running SQL jobs, amongst others. Some of those functions are supported by the use of SNMP, whereas others require the open supply JTOpen Java toolbox to be installed.

The Nagios server itself doesn’t run on IBM i – at least not yet. With the Nagios on IBM i plug-in, IBM offers clients with directions on how to set up Nagios Core or Nagios XI on a Linux server. Technically, there should still be nothing stopping from a person installation Nagios in a Linux LPAR on the energy techniques server – or even for IBM to port the utility to the IBM i OS by the use of PASE – but that has not came about yet.

IBM makes the case for IBM i shops to make use of Nagios in a PDF presentation on Nagios created via IBM i company architect Tim Rowe and Wang Yun, who developed the Nagios for IBM i plug-in. while Navigator for i gives decent coverage of IBM i-centric queues and metrics, that product doesn’t provide consumers with any visibility of what’s occurring backyard the IBM i system.

valued clientele who purchase Nagios XI can monitor IBM i metrics graphically.

Nagios, then again, provides administrators and operators with a single centralized view of all IT belongings, Rowe and Yun write. apart from the core IBM i metrics that at the moment are purchasable by the use of the Nagios plug-in, IBM i clients can get fashion and historic information, as smartly because the flexibility to configure metrics to their liking, not to mention the ability to create their personal custom plug-ins.

IBM isn’t the best business doing Nagios work on IBM i. just a few years in the past, ShapPin Cheng launched a GitHub project called check_as400 that moved data from IBM i server logs into Nagios. since the extensibility and openness of Nagios, it wouldn’t be surprising to see impartial utility vendors in the IBM i neighborhood adopt the expertise for their personal techniques monitoring offerings.

For now, IBM offers the Nagios plug-in as a beta. Don’t be shocked to peer it turn into a completely supported offering within the months to return, peculiarly considering the fact that the love affair that IBM has with open supply software these days.

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IBM TSM (IBM Tivoli Storage supervisor) | killexams.com Real Questions and Pass4sure dumps

IBM Tivoli Storage manager (IBM TSM) is an commercial enterprise class backup and archiving application. IBM TSM, like every enterprise backup application products, is designed to make copies of a company's statistics to offer protection to against information loss. similar to other business backup utility platforms, it allows coverage-based, automatic records backup. 

IBM Tivoli Storage manager can control backup and archive information across disk arrays, tape libraries or optical storage and can automatically flow records as it ages to lower performance storage. This strategy is occasionally called tiered storage or hierarchical storage administration. policies can specify retention time, category of storage media, frequency of backup, facts class and hardware to be backed up.

IBM TSM makes use of a revolutionary incremental, or "incremental perpetually" backup scheme to bring together backup facts. The utility takes an initial full backup and all subsequent backups are incremental -- it is, handiest adjustments to facts are backed up. This theory at one time became interesting to IBM TSM, but has become greater general over time, certainly among cloud backup providers.

Tivoli Storage manager is a true business product, and as such, can also be configured numerous easy methods to meet an organization's wants. it's most often deployed at groups with tremendous amounts of backup data and a personnel to control it. IBM TSM is supported on loads of hardware, together with AIX, HP-UX, Linux, Solaris, and home windows Server. TSM's backup client is purchasable for many supported versions of primary operating systems.

This screencast from Cyrus DataProtection demo's the TSM (v6) administrator GUI.

learn extra concerning the TSM backup and safety application, as well as other gadget management items provided by way of IBM Tivoli.

ExaGrid Achieves IBM® Tivoli® Storage supervisor (TSM) Certification | killexams.com Real Questions and Pass4sure dumps

WESTBOROUGH, Mass.--(business WIRE)--ExaGrid methods, Inc., the leader in cost-effective, scalable disk-primarily based backup options with facts deduplication, today introduced it has been awarded in a position for IBM Tivoli guide certification. in order to obtain Tivoli Storage manager (TSM) certification, IBM Tivoli trying out teams have validated that ExaGrid’s EX series appliances are seamlessly integrated and utterly suitable to work with the Tivoli storage administration application.

The success of ready for IBM Tivoli software validation indicates IBM customers attempting to find a disk backup answer of their TSM environment that the ExaGrid answer meets or exceeds IBM compatibility criteria. ExaGrid is now included within the IBM world options directory and the built-in carrier administration Library (ISM).

past this quarter, ExaGrid introduced assist for IBM TSM. The combination of the frequent backup software and ExaGrid’s disk backup with deduplication presents further discount of as much as 10:1 in the quantity of backup records beyond that provided with the aid of IBM TSM’s incremental always methodology. ExaGrid’s aid for IBM TSM enormously reduces customer’s dependence on tape and additionally enables IT users to release costly disk prior to now used for backup that can also be used for basic storage. furthermore, IBM TSM customers will benefit from ExaGrid’s GRID scalability to keep the quickest backup efficiency over time as facts grows with no expensive forklift upgrades.

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essential points and benefits of the ExaGrid EX series equipment

ExaGrid's entertaining method to disk-based mostly backup offers unparalleled efficiency and scalability without requiring costly forklift upgrades as statistics grows. ExaGrid valued clientele obtain the quickest backup instances as a result of data is written at once to disk and deduplication is carried out submit-manner after the information is stored, and most importantly as a result of ExaGrid provides full servers which encompass processor, memory, disk and bandwidth versus simply adding disk. This enjoyable method ensures that the backup window doesn't re-explode because it would with other methods. additionally, ExaGrid's GRID scalability permits groups to store up to a 130TB full backup plus retention.

IBM TSM joins a becoming checklist of main backup purposes and utilities supported by the ExaGrid disk-based backup appliance. ExaGrid’s disk backup device with information deduplication helps the business’s main backup applications and utilities, including CA ARCserve, CommVault Simpana, EMC NetWorker, HP records Protector, Idera SQLsafe, Linux/Unix File system records Dumps, LiteSpeed for SQL Server, Microsoft SQL dump, Oracle recuperation supervisor (RMAN), Quest vRanger, pink Gate SQL Backup, Symantec Backup Exec, Symantec NetBackup, Veeam Backup & Replication, and VMware Backup.

resources

About ExaGrid systems, Inc.:

ExaGrid presents the simplest disk-based backup appliance with data deduplication intention-constructed for backup that leverages a special architecture optimized for performance, scalability and cost. The mixture of submit-system deduplication, most recent backup cache, and GRID scalability allows IT departments to achieve the shortest backup window and the fastest, top of the line restores, tape copy, and disaster restoration without efficiency degradation or forklift enhancements as data grows. With workplaces and distribution international, ExaGrid has more than 3,800 techniques put in, more than 1,100 clients, and 260 published client success studies and video testimonials.

For extra guidance, contact ExaGrid at 800-868-6985 or visit www.exagrid.com. talk over with “ExaGrid’s Eye on Deduplication” weblog: http://blog.exagrid.com/.

ExaGrid is a registered trademark of ExaGrid systems, Inc. All other logos are the property of their respective holders.

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Assess: IBM Tivoli Storage Productivity Center V5.1 Implementation

Hybrid Cloud Storage Buying Guide | killexams.com real questions and Pass4sure dumps

First there were public clouds offered by service providers like Amazon. Then there were private clouds set up within the enterprise and safely locked up behind the firewall. And now we are seeing a greater incidence of hybrid clouds, which are a blend of both. This concept is catching hold as companies manage to assure storage managers and CIOs that they won’t lose control of their storage.

“Regardless of the ultimate computing destination, the CIO will maintain ownership of the organization’s data,” said Jay Kidd, Senior Vice President and Chief Technology Officer, NetApp,.

There are many companies offering hybrid cloud storage. Here a few of the candidates.

NetApp

NetApp’s universal data platform (based on its ONTAP software platform) provides data portability, and the ability to spread storage across private clouds and/or public cloud service providers. The introduction of multi-cloud storage architectures, of course, makes storage governance more complex because data is distributed and not under direct supervision. With the clustered Data ONTAP operating system at its core, NetApp aims to help the user span the entire cloud storage landscape, irrespective of data type or location.

Data ONTAP sits in the midst of it all as a single storage and data management platform that is said to enable unrestricted, secure movement of data across public and private clouds. This is aided by prebuilt private cloud architectures based on FlexPod, the converged infrastructure approach supplied by NetApp storage and Cisco networking, which comes with either a VMware or Microsoft private cloud.

Adam Fore, Director of Cloud Solutions Marketing, NetApp, said there are over 200 cloud service providers built on NetApp storage and software that can natively interconnect with a NetApp private cloud infrastructure. These service providers provide such services as infrastructure, backup, DR, and desktop as a service. In addition, NetApp Private Storage for Amazon Web Services is said to enable an organization to realize the benefits of hyperscale cloud services such as EC2 compute, while maintaining the performance and control of their enterprise data.

“Enabling seamless data management across cloud resources is not easy, but by leveraging NetApp’s universal data platform and integrated data portability, organizations can create a cloud data fabric across an extensive choice of cloud providers to take advantage of the services that best serve the business,” said Fore. “NetApp has the broadest ecosystem of cloud provider, application and technology partner options, enabling our customers to build hybrid cloud environments that best fit their organizations.”

EMC

Like NetApp, EMC combines its storage backbone and various elements within its software arsenal with what it calls a its federation partners, VMware, RSA and Pivotal, in order to provide the range of products, solutions and services that make up a hybrid cloud.

EMC, of course, serves up the underlying storage infrastructure for private and public clouds as well as converged infrastructure Vblock platforms from VCE. In addition, EMC supplies associated strategy, assessment and implementation services for clouds. On the applications side, EMC provides cloud-optimized application development environments via Pivotal as well as consulting services to determine the best cloud model. 

An example of a public cloud delivery model is the VMware vCloud Hybrid Service, which is a public cloud solution consistent with enterprise virtualization environments. A service example is the EMC Cloud Advisory Service. 

“We see many IT organizations who are transforming to deliver IT as a service and provide a hybrid cloud delivery model to reduce costs and align more closely with business requirements,” said Edward Newman, Senior Director, Cloud and IT Transformation, Global Services at EMC. “Traditional IT suppliers have a similar vision, but lack some key technology underpinnings found in market-leading virtualization stack from VMware and EMC.  Amazon Web Services has a fast-growing and flexible public cloud solution, but lacks the performance and enterprise-class reliability of private cloud solutions such as EMC’s.”

TwinStrata

CloudArray from TwinStrata is said to easily scale storage area networks and network attached storage with on-demand cloud storage to support primary, secondary, backup and archive storage needs. It does this by presenting object storage in iSCSI, NFS or CIFS formats to applications and users. This simplifies the integration process. A policy-driven on-site cache sits locally, providing users with a hybrid environment that is asynchronously replicating to the cloud.

CloudArray can support multiple caches simultaneously, and each cache can be sized to support a full copy of data, a percentage of the most recently accessed data, or none of the data. As a result, users can customize a hybrid cloud storage environment that meets their varying requirements. Further features include an in-cloud snapshot scheduler, encryption, disaster recovery, a bandwidth scheduler and the ability to support multiple clouds or migrate between them. CloudArray licenses begin at $99/month. It can be implemented as either a virtual or a physical appliance on premise.

“Typically, customers concerned about privacy regulations and sensitive personal data are most interested in supporting an all private cloud model, whereas companies most concerned with costs and resources (i.e. for maintenance and management) are more supportive of an all public cloud model,” said Nicos Vekiarides, CEO and Co-Founder at TwinStrata. “TwinStrata natively supports both SAN and NAS protocols simultaneously, making it suitable for multiple use cases from a single appliance.”

IBM  

Storage automation is a major requirement in making the hybrid cloud concept work. IBM is seeking to answer that need with a software defined storage offering known as IBM SmartCloud Virtual Storage Center (VSC). It is a storage virtualization and data management platform that helps users transition to cloud storage with the promise of no rip and replace. It is said to be able to manage and protect heterogeneous storage environments. IBM can provide the underlying storage or manage the arrays of other providers.

It is integrated and comes with a range of IBM storage software tools. This includes IBM Tivoli Storage Productivity Center, the remote-mirroring and FlashCopy capabilities of IBM System Storage SAN Volume Controller (SVC), and IBM Tivoli Storage FlashCopy Manager. It supports Fibre Channel over Ethernet (FCoE) protocol and has reporting based on IBM Cognos. It also has the ability to perform automated discovery and provisioning of file systems by utilizing IBM Scale Out Network Attached Storage (SONAS) and IBM Storwize V7000 Unified.

Photo courtesy of Shutterstock.

Single-pane storage management | killexams.com real questions and Pass4sure dumps

A single console to manage heterogeneous storage is the Holy Grail of storage management for many users, but not all vendors share this vision.

It's not news that SANs have quickly grown in size, complexity and heterogeneity, and that they've become increasingly difficult to manage. A SAN serving a company with more than 10,000 employees has an average of 317 storage devices, according to IDC. Managing a large SAN from a single pane of glass--one consolidated console--would be a godsend.

Although the prospect of consolidated management isn't likely to become a reality soon, the challenges of supporting heterogeneous storage include the following:

The storage software market was traditionally separated into SRM, which deals with host-based issues such as capacity planning and file reporting, and SAN management, which focused on managing the storage infrastructure (see "Heterogeneous storage management suites" PDF). Discovery of storage components, health and performance monitoring, and reporting along the full data path from the file system, host bus adapter and SAN switch down to the array, LUN and physical spindle are requisites for a storage management suite to provide a detailed view of the entire storage landscape.

Configuration management of storage components and the ability to provision storage--from LUN creation and zoning to the presentation of storage to a host--should also be among any storage management application's capabilities. Newer features, such as the ability to model changes and the visualization of the complete data path, are also turning up in storage management suites.

Vendor product supportVendors that offer products in addition to a storage management suite have an advantage with customers using some of their other products. In addition to the existing customer vendor relationship benefit, most companies try to limit the number of vendors they use. For example, this gives Symantec Corp. a leg up with customers that already own its Veritas backup products because the products are tightly integrated. Similarly, Computer Associates (CA) International Inc.'s close integration of BrightStor with its Unicenter system management suite and ARCserve backup application, gives BrightStor an advantage in companies already using Unicenter or ARCserve. Storage management applications from EMC Corp., Hewlett-Packard (HP) Co. and IBM Corp. favor those vendors' own products. For example, IBM's TotalStorage Productivity Center (TPC) for Replication currently supports only IBM storage and does performance reporting on IBM's SAN Volume Controller virtualization product only; similarly, EMC's ControlCenter can only discover, map and monitor its own Invista storage virtualization product.

Companies like CreekPath Systems don't have this leverage and have been struggling to compete against major storage vendors. As a result, CreekPath is in the process of rebranding itself as a "storage business analytics vendor" with a focus on storage analysis and trending. AppIQ Inc., on the other hand, was among the best for heterogeneous storage support and was acquired by HP. The AppIQ product is now sold as HP Storage Essentials. AdventNet Inc. took a different path by focusing on usability and affordability, and limiting its suite to discovery, monitoring and reporting of heterogeneous devices targeting the small- to medium-sized market.

Today's storage management applications are far from being truly heterogeneous because they work with only a limited number of devices and protocols, requiring users to look closely at qualification matrices when shopping for a storage management application. Furthermore, customers should insist on a trial period to ensure that the storage management application fits into their environment and supports all storage management needs, recommends Babu Kudaravalli, director of enterprise systems at National Medical Health Card Systems Inc. in Port Washington, NY (see "From the field").

Slow standards adoptionAs with many fast evolving industries, little attention has been paid to standards, resulting in a flood of proprietary implementations. Only in the past few years has the storage industry worked together under the Storage Networking Industry Association (SNIA) umbrella to create the Storage Management Initiative (SMI) to develop and standardize interoperable storage management technologies. But it takes time for a standard to evolve. "[The Storage Management Initiative Specification] SMI-S 1.0 was focused around discovery and basic management, but the latest version, SMI-S 1.1 ... goes beyond the basics, allowing a higher order of control," says Denis Kennelly, vice president of storage management product strategy at EMC.

In addition to slowly evolving standards, the adoption of existing standards has been hampered by incomplete implementations of SMI-S and vendors trying to protect their turfs. "One problem with SMI-S is that it can be implemented differently, and some vendors have opted for not implementing all features," says Eric Pitcher, CA's vice president of BrightStor product management.

To add insult to injury, "proprietary implementations protect vendors' investments and margins, and therefore prevent some vendors from truly supporting standards, and only supporting standards to the extent that it won't hurt them from a marketing perspective," says Brian Babineau, an analyst at Enterprise Strategy Group (ESG), Milford, MA.

That's why a single application can't manage the myriad storage devices and protocols in existence today. "Storage management deals with a huge number of variables," says David Russell, research director at Gartner Inc. "A large number of vendors, devices, applications and APIs make it a very complex problem that increases exponentially in complexity with the number of combinations."

To overcome the limitations of today's standards, vendors have added proprietary support for mainstream storage devices to their suites in addition to standards-based management. By supporting standards such as SMI-S, CIM and SNMP, their management applications can manage any device adhering to these standards; however, the hooks into these devices may not be very deep. Therefore, they also support leading storage devices from vendors like Brocade Communications Systems Inc., Cisco Systems Inc., EMC, Emulex Corp., HP, Hitachi Data Systems, IBM, McData Corp., Network Appliance (NetApp) Inc. and QLogic Corp. by turning to proprietary APIs and CLI commands when standards fall short. The latter method allows the management application to manage some leading storage devices at a much deeper level than by just using the present standards.

Storage management vendors are very selective when adding proprietary support for storage devices. "Proprietary device support requires testing whenever a vendor releases new firmware and software versions. Each time we release a new version of CommandCentral, we need to ensure that it works with all devices we support," says Symantec's Danny Milrad, senior product marketing manager for CommandCentral Storage. "It's very expensive and it gets more complex the more devices we support outside of standards."

"Instead of looking at heterogeneous storage management from a single pane-of-glass perspective, a better way to look at it today is from a user's pane-of-glass angle," notes Russell. It's all about the 80/20 rule: "Storage managers need to choose the tool that best matches their priorities and select a storage management suite that takes care of the top 80% of their needs," he adds. Obviously, standards are always lagging behind new technologies; as long as storage technologies evolve as rapidly as they have in the past 10 years, a heterogeneous storage management nirvana can only be approximated.

But several big storage companies--EMC Corp., Hewlett-Packard Co. and Symantec Corp.--are missing from the Aperi consortium list. "For the Aperi open-source initiative to gain widespread involvement and success, operating system support beyond Linux [and] a clearly defined certification process, a vendor-independent management body like SNIA and participation of other large vendors is crucial," says Laura DuBois, IDC's research director, storage software.

Heterogeneous storage management trendsStorage management vendors have been struggling to differentiate their suites from competitors and convince customers to spend money--in some cases more than $1 million--on an application that in many ways aggregates tasks otherwise performed by free tools that come with the various storage devices. To differentiate their products, storage management suite vendors are starting to move away from being just technical plumbing tools.

Mark Davis, CreekPath's president and chief executive officer, says his company is going to "stop building software that manages hardware and start building applications that provide true business value." In the next version of its suite, due in the first half of this year, CreekPath will add business analytics to its application that will help businesses better plan and forecast their storage needs. CA's BrightStor Storage Command Center, which is one of the BrightStor r11.5 components, provides similar capabilities.

In addition to closer business alignment, storage management suites are adding more advanced features, such as easier SAN management for tasks like storage provisioning and event correlation capabilities to identify problems. Wizard-based provisioning and event correlation in EMC SAN Advisor and HP Storage Essentials are examples of this trend. The Aperi reference platform (see "The Aperi initiative"), spearheaded by IBM and supported by other storage vendors, is focused on commoditizing and unifying basic element management. "Vendors shouldn't spend their time re-implementing the low-level plumbing, but should focus on higher level management like automation and ILM [information lifecycle management]," says Jamie Gruener, storage marketing manager, IBM Tivoli.

The ultimate storage management objective is the ability to react to storage events such as volumes running low on capacity or error conditions without human interaction. Although we find policy-based provisioning and process automation in Symantec's CommandCentral and EMC ControlCenter in the form of its automated resource management (ARM), ESG's Babineau believes most customers aren't ready for fully automated storage management. "In 2006, modeling will be big. Being able to model additions and changes to your storage environment but apply them manually is one step prior to full automation, for which the storage community is not ready yet," concludes Babineau.

As storage, server and network management grow closer, storage management suite vendors are extending their applications beyond storage management toward complete infrastructure management, including server and network management. For example, HP added storage management capabilities to the 5.0 release of Systems Insight Manager (SIM). Furthermore, HP's Storage Essentials and SIM are closely linked by a common security model, database of objects, as well as common monitoring and event handling. "As far as HP OpenView network management is concerned, it will stay separate for now," says Rich Escott, director, storage resource management software at HP. "Although there are interfaces between OpenView and SIM/Storage Essentials."

Along the same lines, IBM will couple storage and server management over time. EMC, on the other hand, will add network management features to ControlCenter by integrating the recently acquired SMARTS technology into ControlCenter by the end of 2006 to foster EMC's current focus on disaster recovery (DR) and business continuity. "For DR and business continuity, IP network management that's able to manage the network of connected sites is crucial," says EMC's Kennelly.

Although storage management vendors want their suites to be the center of the storage universe, managing heterogeneous storage components from a single console is only possible to a very limited extent today. For storage environments that have standardized on Fibre Channel using a minuscule number of storage elements from major storage vendors, single pane-of-glass management is well in reach. Beyond that, single pane-of-glass storage management of very heterogeneous environments is a fiction and will require storage management standards to mature before it can become a reality.

zCloud - A Better Business Cloud | killexams.com real questions and Pass4sure dumps

The value of cloud computing is the availability of technological infrastructure support that is always available, comprehensively useful, highly scalable and attractively priced. By this modern definition of cloud computing, System z has been an internalized cloud for decades and has found to have all the features to make it a natural Cloud Platform. The power of the mainframe's software and hardware virtualization, its shared resources architecture, its real and virtual memory controls, its in-memory internal communications structure, its specialty engines, its energy efficiency and its accommodation of Linux and Java natively are all cloud-relevant, and enable IBM System z machine to be a natural zCloud.

This article looks at all the cloud relevant features of IBM System z machines in detail.

RequirementsAny cloud system has to meet four basic requirements:

Let's have a look at each of these requirements in detail with respect to System z machines

ScalabilityIBM System z virtualization is a 40 year old technology.  Virtualization is delivered both at hardware and software level.  All System z models come with Processor Resource/System Manager  (PR/SM), the type 1 hypervisor that enables logical partitions (LPAR) to share system resources. PR/SM provides the ability to divide system resources into isolated logical partitions. Each logical partition operates like an independent system running its own operating environment.  This hardware level virtualization capability enables running thousands of virtual guest operating systems on a single Logical Partition. z/VM is the virtualization program that controls and distributes system resources so that many virtual machines can share the same physical resources.  With the help of zVM software and logical partitioning of hardware, a single mainframe can run more than thousands of operating systems and the The value realized at the infrastructure level is then permeated into PaaS and SaaS.

Massive virtualization enables near linear system scalability and system capacity can be plugged into existing and running systems. Here is a comparison of how IBM system z meets the scalability requirements compared to x86 servers.

ResilienceThe System z product line is designed to offer fault tolerance to reduce single point of failure(SPOF).  System z and its associated software have evolved to the point that customers often experience months or even years of system availability between system downtimes. System z provides fault tolerance for all of its key components. This includes not just the CPs, memory or I/O, but also the timing oscillator card, power supply, channel paths and others.  Quick retargeting of spare instances of application elements, facilitated by virtualization ensures a longer period of Mean time between failure(MTBF).

IBM Mainframe parallel sysplex cluster contains multisystem data  and resource sharing technology and with this technology systems can harness the power of up to 32 z systems. In a parallel sysplex structure, every server has access to all data resources and every "cloned" application can run on every server. A  Globally Dispersed Parallel Sysplex(GDPS) ensures near-continuous availability and disaster recovery capability.

ElasticityAs mentioned in previous sections of this article, virtualization and resource allocation and coordination are built into the platform.  System z's Shared everything enables less components and a more simplistic IT foundation.  It supports capacity upgrade  on demand (CUoD) and on/Off Capacity on demand(on/off CoD) that is transparent to end users.

Capacity Upgrade on Demand (CUoD) allows for the non disruptive addition of central processor capacity.  CUoD can quickly add processor capacity up to the maximum number of available inactive engines.

On/Off CoD enables you to rent hardware capacity by the day and  can turn on/off processing units or Integrated Facilities from your original configuration.   You need to pay only for the days the processing units or Integrated Facilities are turned on.

SecuritySystem z provides highly secure environment for the applications and operating systems.  Every component in a System z box operate in full isolation for security and recoverability. Morevoer, each of the components are integrated through memory-to-memory speed hipersockets (In-memory TCP/IP network) reducing intrusion points to minimum.  The z/OS intrusion detection system(IDS) uses policy-based - rather than signature-based - identification with capabilities for detecting and preventing not only known attacks, but also new attacks for which there are no developed attack signatures.

zSeries hardware partitioning was the first product of its kind to be awarded EAL5 (Evaluation Assurance Level) international common criteria security certification. The cryptographic co-processor does encryption   in hardware, reducing the performance penalty.

Overall System z Operational efficiency can be summarized as shown below:

TCO AnalysisFinally, let's look at a TCO analysis conducted by IBM to compare various cloud options. IBM has released the results of this TCO study comparing cost of five configurations given below for running 100 Linux images over five years.

As per this study, Private cloud implementations built around larger virtualized System z servers can be up to 77% less expensive than public cloud options over a five year period and around 81% less than a distributed stand-alone server approach. Amazon EC2 based public cloud is expensive due to several factors like platform running charges for 24-7 operation and administration cost of each running application instance.

SummaryWhile meeting the basic requirements of a cloud platform, System z also reduces complexity with centralized management of networks and resources.  IBM Tivoli service automation manager-based resource provisioning and monitoring ensures an extremely cost-effective and scalable platform to fullfil these elastic computing needs. System z-based cloud systems have built in elasticity for just-in-time capacity supporting massive scale of the order of +900k users with TBs of data.  The virtualization and Share everything architecture of System z machines enables 100% system utilization without degradation in performance.  Hypersockets-based internal connectivity helps in scaling up inside the box, thus reducing the space requirements and electricity demands by 25% as compared to distributed platforms. This also leads to less resource requirements to support more workload resulting greater ROI for IT Projects.

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