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The IBM System i is a family of midrange computers from IBM. It was first introduced as the AS/400 (Application System/400) in June 1988, alongside the OS/400 operating system. It was intended as the successor to IBM's System/36 and System/38 platforms. Early AS/400 systems used the same IMPI architecture as the System/38, but later systems moved to the PowerPC-based IBM RS64.

It was re-branded multiple times by IBM - first as the AS/400 Advanced Series in 1994, followed by AS/400e (the e standing for e-business) in 1997,[1] eServer iSeries in 2000,[2] eServer i5 (along with OS/400 becoming i5/OS) in 2004, and finally System i in 2006.

In April 2008, System i and System p were consolidated into the IBM Power Systems platform. The i5/OS operating system was rebranded to IBM i, and retained full backwards compatibility with the previous hardware platforms.[3]

Summary[edit]

 
IBM AS/400
 
IBM System i 570 server (as of 2006)

The predecessor to AS/400, IBM System/38, was first made available in August 1979 and was marketed as a minicomputer for general business and departmental use. It was sold alongside other product lines, each with a different architecture (System/3System/32System/34System/36).

Realizing the importance of compatibility with the thousands of programs written in legacy code, IBM launched the AS/400 midrange computer line in 1988. AS stands for "Application System." Great effort was made during development of the AS/400 to enable programs written for the System/34 and System/36 to be moved to the AS/400. Programs on the System/38 were directly compatible with the new AS/400 (after they were 're-encapsulated' by the operating system).

In 2000, in accordance with IBM's eServer initiative, the AS/400 series was rebranded as the eServer iSeries. In 2006, it was again rebranded as the IBM System i. In 2008, almost 20 years after being introduced, the System i and IBM System p product lines were combined into a new product line called the IBM Power Systems line.[4]

The AS/400 operating system was originally named OS/400 (following the pattern begun with OS/360 and followed with OS/2). The operating system has undergone name changes along with the rebranding of IBM's server lineup. The operating system was rebranded as i5/OS to correspond with the introduction of POWER5 processors and the rebranding of the hardware to eServer iSeries. In 2008, the operating system was rebranded to IBM i, with the introduction of the IBM Power Systems.

The operating system is object-based. Features include a RDBMS (DB2/400), a menu-driven interface, support for multiple users, block-oriented terminal support (IBM 5250), and printers. IBM i has built-in security, and support for communications, and web-based applications which can be executed inside the optional IBM WebSphere Application Server or as PHP/MySQL applications inside a native port of the Apache web server.[5]

Unlike the "everything is a file" feature of Unix and its derivatives, on IBM i everything is an object (with built-in persistence and garbage collection). IBM i offers Unix-like file directories using the Integrated File System.[6] Java compatibility is implemented through a native port of the Java virtual machine.

Like IBM's mainframe operating systems, IBM i uses EBCDIC as the inherent encoding.[7]

OS/400 Version 4, Release 4 (V4R4) introduced LPARs (logical partitions) allowing multiple virtual systems to run on a single hardware footprint.

Features[edit]

The IBM System i platform extended the System/38 architecture of an object-based system with an integrated DB2 relational database. Equally important are the virtual machine and single-level storage concepts which established the platform as an advanced business computer.

Instruction set[edit]

 
IBM AS/400e Model 150

One feature that has contributed to the longevity of the IBM System i platform is its high-level instruction set (called TIMI for "Technology Independent Machine Interface" by IBM), which allows application programs to take advantage of advances in hardware and software without recompilation. TIMI is a virtual instruction set independent of the underlying machine instruction set of the CPU. User-mode programs contain both TIMI instructions and the machine instructions of the CPU, thus ensuring hardware independence. This is conceptually somewhat similar to the virtual machine architecture of programming environments such as Java and .NET.

Unlike some other virtual-machine architectures in which the virtual instructions are interpreted at run time, TIMI instructions are never interpreted. They constitute an intermediate compile time step and are translated into the processor's instruction set as the final compilation step. The TIMI instructions are stored within the final program object, in addition to the executable machine instructions. This is how application objects compiled on one processor family (e.g., the original CISC AS/400 48-bit processors) could be moved to a new processor (e.g., PowerPC 64-bit) without re-compilation. An application saved from the older 48-bit platform can simply be restored onto the new 64-bit platform where the operating system discards the old machine instructions and re-translates the TIMI instructions into 64-bit instructions for the new processor.

The system's instruction set defines all pointers as 128-bit. This was the original design feature of the System/38 (S/38) in the mid 1970s planning for future use of faster processors, memory and an expanded address space. When at a point in the future 128-bit general purpose processors would appear, IBM i will already be fully 128-bit enabled. The original AS/400 CISC models used the same 48-bit address space as the S/38. The address space was expanded in 1995 when the RISC PowerPC RS64 64-bit CPU processor replaced the 48-bit CISC processor.

For 64-bit PowerPC processors, the virtual address resides in the rightmost 64 bits of a pointer while it was 48 bits in the S/38 and CISC AS/400. The 64-bit address space references main memory and disk as a single address set which is the single-level storage concept.

Software[edit]

Main article: IBM i

The IBM System i includes an operating system originally known as OS/400, later as i5/OS and IBM i. System i is also capable of supporting multiple instances of AIXLinuxLotus DominoMicrosoft Windows 2000 and Windows Server 2003. While OS/400, AIX, Linux and Lotus Domino are supported on the POWER processors, Windows is supported with either single-processor internal blade servers (IXS) or externally linked multiple-processor servers (IXA and iSCSI). iSCSI also provides support for attachment of IBM Bladecenters. Windows, Linux, and VMware ESX(VI3) are supported on iSCSI attached servers.

LPAR (Logical PARtitioning), a feature introduced from IBM's mainframe computers, facilitates running multiple operating systems simultaneously on one IBM System i unit. A system configured with LPAR can run various operating systems on separate partitions while ensuring that one OS cannot run over the memory or resources of another. Each LPAR is given a portion of system resources (memory, hard disk space, and CPU time) via a system of weights that determines where unused resources are allocated at any given time. The operating systems supported (and commonly used) under the LPAR scheme are IBM iAIX, and Linux.

Other features include an integrated DB2 database management system, a menu-driven interface, multi-user support, non-programmable terminals (IBM 5250) and printers, security, communications, client–server and web-based applications. Much of the software necessary to run the IBM System i is included and integrated into the base operating system.

The IBM System i also supports common client–server systems such as ODBC and JDBC for accessing its database from client software such as Java, Microsoft .NET languages and others.

History[edit]

 
IBM AS/400 9404-B10 with a 5281 terminal

The IBM System i, then known as the AS/400, was the continuation of the System/38 database machine architecture (announced by IBM in October 1978 and delivered in August 1979). The AS/400 removed capability-based addressing.[1] The AS/400 added source compatibility with the System/36 combining the two primary computers manufactured by the IBM Rochester plant. The System/36 was IBM's most successful mini-computer but the architecture had reached its limit.

The first AS/400 systems (known by the development code names Silverlake, named for Silver Lake in downtown Rochester, Minnesota, where development of the system took place, and Olympic) were delivered in 1988 under the tag line "Best of Both Worlds" and the product line has been refreshed continually since then. The programmers who worked on OS/400, the operating system of the AS/400, did not have a UNIX background. Dr Frank Soltis, the chief architect, says that this is the main difference between this and any other operating system.

The AS/400 was one of the first general-purpose computer systems to attain a C2 security rating from the NSA (Gould UTX/C2, a UNIX-based system was branded in 1986[8]), and in 1995 was extended to employ a 64-bit processor and operating system.

The 1995 change-over from IMPI, with 48-bit addresses, to PowerAS, with 64-bit addresses, required that all programs be 'observable', i.e. that the debugging information had not been stripped out of the compiled code. This caused problems for those who had bought third-party products that had no source and no observability. In 2008, the release of i5/OS V6R1 (later known as IBM i 6.1) caused similar problems due to changes to the TIMI in that release.[9]

In 2000, IBM renamed the AS/400 to iSeries, as part of its e-Server branding initiative. At that time, it adopted more PC server-like features, such as PS/2 keyboards and mice and VGA video output, mostly coming from IBM PS/2 and Intel server line (called eServer xSeries), replacing proprietary technologies. In 2001, it switched to the POWER4 processor from the PowerAS processors used by previous generations.

The product line was further extended in 2004 with the introduction of the i5 servers, the first to use the IBM POWER5 processor. The architecture of the system allows for future implementation of 128-bit processors when they become available.

Although announced in 1988, the AS/400 remains IBM's most recent major architectural shift that was developed wholly internally. Since the arrival of Lou Gerstner in 1993, IBM has viewed such colossal internal developments as too risky. Instead, IBM now prefers to make key product strides through acquisition (e.g., the takeovers of Lotus Software and Rational Software) and to support the development of open standards, particularly Linux. After the departure of CEO John Akers in 1993, when IBM looked likely to be split up, Bill Gates commented that the only part of IBM that Microsoft would be interested in was the AS/400 division. (At the time, many of Microsoft's business and financial systems ran on the AS/400 platform, something that ceased to be the case around 1999, with the introduction of Windows 2000.[10][11][12])

Hardware[edit]

The AS/400 was originally based on a custom IBM CISC CPU which had an instruction set architecture, known as Internal Microprogrammed Interface (IMPI), similar to that of the IBM System/370.[13] It was later migrated to a POWER-based RISC CPU family eventually known as RS64.[14]

CPU in AS/400, iSeries, i5, Power Systems[edit]

The System i5 used POWER CPUs, which were developed and manufactured by IBM. The POWER 4/5/5+ chips contain two cores. There are Multi-Chip Modules (MCM) available. They have 2 CPUs (4 cores) or 4 CPUs (8 cores) in one MCM.

CPUYearClock Speed Server-Models
IMPI[note 1] 1988 > 22Mhz [note 2] AS/400 Bxx, Cxx, Dxx, Exx, Fxx, Pxx, 100, 135, 140, 2xx, 3xx[16]
Cobra (A10) 1995 55 or 75 MHz 4xx, 5xx
Muskie (A25/A30) 1996 125 or 154 MHz 53x
Apache (RS64) (A35) 1997 125 MHz 6xx, 150
NorthStar (RS64 II) 1998 200, 255 or 262 MHz 170, 250, 7xx, 650, S40, SB1[17]
Pulsar (RS64 III) 1999 450 MHz iSeries;
 
System i
270, 820
IStar (RS64 III upgraded) 2000 400, 500, 540 or 600 MHz 820, 830, 840,[18] SB2, SB3
SStar (RS64 IV) 2000 540, 600 or 750 MHz 270, 800, 810, 820, 830, 840
POWER4 2001 1.1 or 1.3 GHz 890
POWER4+ 2003 1.9 GHz 825, 870
POWER5 2004 1.5 or 1.9 GHz i5-520; i5-550; i5-570; i5-595
POWER5+ 2005 1.5 GHz (2005)
1.9 GHz(2005)
2.2 GHz
2.3 GHz
i5-520, i5-550, i5-515, i5-525
i5-570
POWER6 2007 3.5 GHz
4.2 GHz
4.7 GHz
BladeCenter JS12, JS22
i5-570 (MMA)
M50, M25 & M15
POWER6+ since 2009 3.6 GHz
3.8 GHz
4.0 GHz
4.2 GHz
4.4 GHz
5.0 GHz
BladeCenter JS12, JS22, JS23, JS43
Power 520, 550, 560, 570, 575, 595
Power;

Power Systems

POWER7 2010 3.3 GHz
3.6 GHz
3.7 GHz
4.2 GHz
BladeCenter PS700, PS701, PS702
PureSystems compute nodes p260, p460, p24L
PowerLinux 7R1, 7R2
Power 710, 720, 730, 740, 750, 755, 760, 770, 780, 795
POWER7+ 2012 3.7 GHz
4.2 GHz
4.4 GHz
BladeCenter PS703, PS704
PureSystems compute nodes p260, p460, p24L
PowerLinux 7R1, 7R2
Power 710, 720, 730, 740, 750, 755, 760, 770, 780, 795
POWER8 2014 2.5 GHz to 5.0 GHz Power S812L, S814, S822, S822L, S824, S824L, S812LC, S821LC, S822LC
Power E850, E870, E880
POWER9 2017 4 GHz Power AC922, L922, S914, S922, S924, H922, H924, E950, E980
  1. ^ There were at least two generations of IMPI processors, the second was released in 1991.[15]
  2. ^ "The processor clock cycle is 45ns worst case."[15]
Further information: IBM Power Systems

Models of AS/400, iSeries, i5 systems[edit]

ModelYearCPU GroupBase - CPW
B10, B20, B30, B35, B40, B45, B50, B60, B70 1988, 1989 P10, P20 2,9 - 20
C04, C06, C10, C20, C25 1990 P10 3,1 - 6,1
D02, D04, D06, D10, D20, D25, D35, D45, D50, D60, D70, D80 1991 P10, P20, P30 3,8 - 56,6
E02, E04, E06, E10, E20, E25, E35, E45, E50, E60, E70, E80, E90, E95 1992 P10, P20, P30, P40 4,5 - 116,6
F02, F04, F06, F10, F20, F25, F35, F45, F50, F60, F70, F80, F90, F95, F97 1993 P05, P10, P20, P30, P40 5,5 - 177,4
P01, P02, P03 1993-1995 P05 7,3 - 16,8
150 1996 P05 10,9 - 35,0
S10, S20, S30, S40 1997 P05, P10, P20, P30, P40, P50 45,4 - 4550
SB1, SB2, SB3 1997, 2000 P30, P40 1794 - 16500
10S, 100, 135, 140 1993-1995 P05, P10, P20 17,1 - 65,6
170 1998 P05, P10, P20 30 - 1090
200, 20S, 236 1994 P05, P10 7,3 - 17,1
250 2000 P05 50 - 75
270 2000 P05, P10, P20 50 - 2350
300, 30S, 310 1994 P10, P20, P30, P40 11,6 - 177,4
400, 40S, 436 1995 P05, P10 13,8 - 91,0
500, 50S, 510, 530, 53S 1995 P10, P20, P30, P40 18,7 - 650
600, 620, 640, 650 1997 P05, P10, P20, P30, P40, P50 22,7 - 4550
720 1999 P10, P20, P30 240 - 1600
730 1999 P20, P30, P40 560 - 2890
740 1999 P40, P50 3660 - 4550
800 2003 P05, P10 300 - 950
810 2003 P10, P20 750 - 2700
820 2000, 2001 P05, P10, P20, P30, P40 100 - 3700
825 2003 P30 3600 - 6600
830 2000, 2002 P20, P30, P40, P50 1850 - 7350
840 2000-2002 P40, P50 10000 - 20200
870 2002 P40, P50 7700 - 20000
890 2002 P50, P60 20000 - 37400
520 2004–2006 P05, P10, P20 500 - 7100
550 2004–2006 P20 3300 - 14000
570 2004–2006 P30, P40 3300 - 58500
595 2004–2006 P50, P60 24500 - 216000
515 2007 P05 3800 - 7100
525 2007 P10 3800 - 7100
570 2007 P40 16700 - 58500
MMA (9406) 2007 P30 5500 - 76900
M15 2008 P05 4300
M25 2008 P10 4300 - 8300
M50 2008 P20 4800 - 18000
MMA 2008 P30 8150 - 76900
JS12 2008 P05 7100
JS22 2008 P10 13800
JS23 2008    
JS43 2008    
570 (9117) 2008 P30 104800
595 (9119) 2008 P60 294700

See also[edit]

Wikimedia Commons has media related to IBM System i.
Preceded by
IBM RS/6000
IBM System p
2000 - 2008
eServer pSeries
 
2000
eServer p5
 
2004
System p5
 
2005
System p
 
2007
Succeeded by
IBM Power Systems
Preceded by
IBM AS/400
IBM System i
2000 - 2008
eServer iSeries
 
2000
eServer i5
 
2004
System i5
 
2005
System i
 
2006

References[edit]

  1. Jump up to:a b Frank G. Soltis Fortress Rochester: The Inside Story of the IBM ISeries p.119
  2. ^ "IBM eServer iSeries 400". IBM. October 3, 2000.
  3. ^ Niccolai, James (April 2, 2008). "IBM merges System i and System p server lines"InfoWorld.
  4. ^ "System i users: Power Systems merger good, OS name change mixed".
  5. ^ "Zend Solutions for IBM i".
  6. ^ "File Integrity Monitoring for iSeries". Archived from the original on 2009-05-14.
  7. ^ IBMnt (2008). "IBM confirms the use of EBCDIC in their mainframes as a default practice". Archived from the original on 2013-01-03. Retrieved 2008-06-16.
  8. ^ "Gould, Inc. Computer Systems Division". Defense Technical Information Center. December 31, 1986.
  9. ^ Alex Woodie (2008-02-26). "i5/OS V6R1 Compatibility an Issue for Software Vendors". itjungle.com. Retrieved 2021-03-16.
  10. ^ Microsoft TechNet. "AS/400s extinct at Microsoft since 1999". Google discussion group, Microsoft runs AS/400's in-house - Article?. Retrieved 2007-05-16.
  11. ^ "Disparition des systèmes AS/400 chez Microsoft depuis mai 1999". Archived from the original on 2012-11-06. Retrieved 2013-01-02.
  12. ^ "Microsoft Uses the iSeries to Run its Business". Blogspot,Confessions of An iSeries Priest. Retrieved 2006-03-05.
  13. ^ David McKenzie. "Notes for storage research". Archived from the original on October 8, 1999.
  14. ^ Soltis, Frank G. "When Is PowerPC Not PowerPC?". The 400 Squadron. Archived from the original on January 8, 2008.
  15. Jump up to:a b Schmierer, Q.G.; Wottreng, A.H. (1991). IBM AS/400 processor architecture and design methodology. IEEE International Conference on Computer Design: VLSI in Computers and Processors. pp. 440–443. doi:10.1109/ICCD.1991.139942.
  16. ^ "AS/400e System Handbook" (PDF). IBM. 1999-08-03. Retrieved 2021-03-21.
  17. ^ IBM.com. "V4R3 Questions and Answers". Reference # 8625668200695613. Retrieved 2007-04-04.[permanent dead link]
  18. ^ https://www-01.ibm.com/common/ssi/ShowDoc.wss?docURL=/common/ssi/rep_sm/5/897/ENUS9406-_h05/index.html&request_locale=en

External links[edit]

 

Hardware support matrix                
HMC Machine/ POWER9 Server Support POWER8 Server Support POWER7 Server Support POWER6 Server Support POWER5 Server Support POWER4 Server Support Minimum HMC Release  
Type/Model Last Supported Release
   
7063-CR1 Yes Yes Yes Last support on HMC V8.870 No No HMC V8.870.0 In support
                 
7042-CR9 Yes Yes Yes Last support on HMC V8.870 No No HMC V8.840.0 In support
7042-CR8 Last support on HMC V9R1/FW940 Yes Yes Last support on HMC V8.870 No No HMC V8.810.0 HMC V9.1
7042-CR7 Last support on HMC V9R1/FW940 Yes Yes Last support on HMC V8.870 Last support on HMC V7.790 No HMC V7.760.0 HMC V9.1
7042-CR6 No Yes Yes Yes Last support on HMC V7.790 No HMC V7.720.0 HMC V8.860
7042-CR5 No Yes Yes Yes Last support on HMC V7.790 No HMC V7.350.0 HMC V8.860
7042-CR4 No No Yes Yes Yes No HMC V7.310.0 HMC V7.790
7042-C08 No Yes Yes Yes Last support on HMC V7.790 No HMC V7.710.0 HMC V8.860
7042-C07 No No Yes Yes Yes No HMC V7.330.0 HMC V7.790
7042-C06 No No Yes Yes Yes No HMC V7.310.0 HMC V7.790
7042-OE1 Yes Yes Yes Last support on HMC V8.870 No No HMC V8.830.1 HMC V9.1
7042-OE2 Yes Yes Yes Last support on HMC V8.870 No No HMC V8.860.0 HMC V9.1
                 
7310-CR4 No No Yes Yes Yes No HMC V7.310.0 HMC V7.790
7310-CR3 No No Yes Yes Yes No N/A HMC V7.790
7310-CR2 No No No Yes Yes No N/A HMC V7.760
7310-C06 No No Yes Yes Yes No HMC V7.310.0 HMC V7.790
7310-C05 No No Yes Yes Yes No HMC V6 HMC V7.790
7310-C04 No No No Yes Yes No N/A HMC V7.760
7310-C03 No No No Yes Yes No HMC V7.310.0 HMC V7.350
7310-C02 No No No No Yes No N/A HMC V6.1.3
                 
7315-CR3 No No No No Yes Last support N/A HMC V6.1.3
on HMC V3.3.7
7315-CR2 No No No No Yes Last support N/A HMC V6.1.3
on HMC V3.3.7
7315-C04 No No No No Yes Last support N/A HMC V6.1.3
on HMC V3.3.7
7315-C03 No No No No Yes Last support N/A HMC V6.1.3
on HMC V3.3.7
7315-C02 No No No No Yes Last support N/A HMC V6.1.3
on HMC V3.3.7
 
 
 
 

Power Systems Virtual Servers Quick Overview

Power Systems Virtual Server projects deliver flexible compute capacity for Power Systems workloads. Integrated with the IBM Cloud platform for on-demand provisioning, this offering provides a secure and scalable server virtualization environment built upon the advanced RAS features and leading performance of the Power Systems™ platform.

 Power systems virtual server matrix

IBM POWER Systems running AIX and IBM i are well known for their reliability and performance, but those systems also require a, sometimes significant, commitment for hosting the system on site which limits flexibility. Power Systems Virtual Servers gives the ability to quickly and easily launch new Power Systems resources:

  •  A cloud hosted secure sandbox environment, Power Systems VS gives users the capability to test their own AIX or IBM i Workloads, test out new OS verions, or the latest hardware available.

  •  AIX and IBM i applications are no longer restricted to on site systems. Run some of your AIX or IBM i applications in the public cloud while still maintaining a smaller on site footprint.

  •  Disaster Recovery without double commitment. Secure your AIX and IBM i workloads and data without needing twice the hardware needed on site by using a Power Systems Virtual Server for your DR as a more affordable option.

  •   "Bring your own image" IBM Power Systems VS makes deployment simple, as you can bring your own custom AIX, IBM i, or linux image that you have already tested and previously deployed.

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Key Features

IBM® Power Systems™ Virtual Server is a Power Systems enterprise infrastructure as a service (IaaS) offering. Power Systems Virtual Servers are physically located with low-latency connectivity to the IBM Cloud™ infrastructure. You can use the Power Systems Virtual Servers to deploy a virtual server, also known as a logical partition (LPAR), in a matter of minutes. IBM Power Systems clients who have typically relied upon on-premises-only infrastructure can now quickly and economically extend their Power IT resources off-premises. Avoid the large capital expense or added risk when migrating your essential workloads and get started with Power Systems Virtual Servers today!

In the data centers, the Power Systems Virtual Servers are separated from the rest of the IBM Cloud servers with separate networks and direct-attached storage. The internal networks are fenced but offer connectivity options to IBM Cloud infrastructure or on-premises environments. This infrastructure design enables Power Systems Virtual Servers to maintain key enterprise software certification and support as the Power Systems Virtual Server architecture is identical to certified on-premises infrastructure.

Power Systems Virtual Servers integrates your AIX, IBM i, or Linux® capabilities into infrastructure as a service. That means you get fast, self-service provisioning, flexible management both on-premises and off, and access to a stack of enterprise IBM Cloud services – all with pay-as-you-use billing that lets you easily scale up and out. You can quickly deploy a Power Systems Virtual Server to meet your specific business needs and easily control workload demands.

 

Straightforward Billing

The Power Systems Virtual Server service uses a monthly billing rate that includes the licenses for the AIX and IBM i operating systems. The monthly billing rate is pro-rated by the hour based on the resources that are deployed to the Power Systems Virtual Server instance for the month. When you create the Power Systems Virtual Server instance, you can see the total cost for your configuration based on the options that you specify.

Bring your own image

IBM provides you with stock AIX and IBM i images when you create a Power Systems Virtual Server. However, you can always bring your own custom AIX, IBM i or Linux image that you have tested and deployed.

 

 

 

How can IBM Power Systems Virtual Server help you?

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Extend your Power workloads onto IBM Power Systems Virtual Server without heavy upfront costs. Help keep budgets under control with transparent pricing and pay-as-you-use billing. Bring more capacity to your Power infrastructure — on-demand, within minutes. Stay competitive and agile with flexible management both on premises and off premises. Select your system and customize cores, storage, network, OS and more. Let the IBM team fully manage it for you or opt for a self-service model.

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Data copy

 
Secure a disaster-recovery-as-a-service site on IBM Power Systems Virtual Server. Help ensure your mission-critical applications, systems of records, IBM Db2® transactions or ERP/CRM plans remain resilient with off-site, high-availability resources.

Development and testing

 
Help reduce costs with pay-as-you-use billing to accommodate the transient nature of development and testing environments. Begin projects without large, capital budget approvals, run multiple tests simultaneously, and spin up or down as needed.

Resource scaling

 
Bring more capacity to on-premises infrastructure when required. Take advantage of virtual server resources and pay-as-you-use to help deliver peak operational performance and Opex savings.

Customer support


Work through non-production tasks in parallel to production environments. Troubleshoot, replicate and help resolve issues faster by using a virtually constant supply of LPARs for staging.

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