IBM Power 795 server

Extraordinary scale, capacity and bandwidth for the most demanding enterprise applications

Processor cores (maximum) 192 POWER7 3.72 GHz processors
256 POWER7 4.00 GHz processors
128 POWER7 4.25 GHz processors (TurboCore)
Processor books Up to eight
Sockets Up to 32
Level 2 (L2) cache 256 KB L2 cache per core
Level 3 (L3) cache 4 MB L3 cache per core (eDRAM) or
8 MB L3 cache per core (eDRAM)
RAM (memory) 32 DIMMs per processor book
Up to 16 TB of 1066 MHz DDR3
PCIe I/O drawers 24": 1 – 32
Internal disk bays 26 SAS Small Form Factor bays in each 24" PCIe I/O drawer
Up to 832 maximum per system in 24" drawers
Up to 2,220 bays in 19" drawers
Adapter slots 20 PCIe in each 24" I/O drawer
640 maximum per system
I/O ports 4 GX++ adapter ports per processor book, 32 per system
Hardware Management Console ports Two pairs via redundant Ethernet hubs
POWER Hypervisor™ LPAR, Dynamic LPAR, Virtual LAN
PowerVM Standard Edition (optional) Micro-Partitioning with up to 20 micro-partitions per processor (1,000 maximum); Multiple Shared Processor Pools; Virtual I/O Server; Shared Dedicated Capacity; PowerVM Lx86
PowerVM Enterprise Edition* (optional) PowerVM Standard Edition plus Live Partition Mobility and Active Memory Sharing
RAS features Processor Instruction Retry
Alternate Processor Recovery
Selective dynamic firmware updates
IBM Chipkill ECC, bit-steering memory
ECC L2 cache, L3 cache
Redundant service processors with automatic failover
Redundant system clocks with dynamic failover
Hot-swappable disk bays
Hot-plug/blind-swap PCI slots
Hot-add I/O drawers
Hot-plug power supplies and cooling fans
Dynamic Processor Deallocation
Dynamic deallocation of logical partitions and PCI bus slots
Extended error handling on PCI slots
Redundant power supplies and cooling fans
Battery backup and redundant battery backup (optional)
Capacity on Demand features (optional) Processor CUoD (in increments of one processor)
Memory CUoD (in increments of 1 GB)
Elastic Processor CoD
Elastic Memory CoD
Trial CoD
Utility CoD
Power Enterprise Pools
Operating systems AIX, IBM i, and Linux for Power
High availability PowerHA family
Power requirements 200 V to 240 V; 380 V to 415 V; 480 V ac; 550 V dc
System dimensions One frame (slimline doors): 79.3"H x 30.5"W x 58.5"D (201.4 cm x 77.5 cm x 148.6 cm); weight: 2,551 lb (1157.2 kg)
One frame (acoustic doors): 79.3"H x 30.5"W x 71.1"D (201.4 cm x 77.5 cm x 180.6 cm); weight: 2,577 lb (1,168.9 kg)
Warranty (limited) 24x7, same day response for one year; on-site (varies by country). Warranty service upgrades and maintenance are available.

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Next generation applications for big data and analytics and cognitive computing are providing unprecedented insights into opportunities, threats and efficiencies. IBM Power Systems is at the forefront of delivering solutions to gain faster insights from analyzing both structured information and unstructured big data. With the secure, flexible and open platform of IBM Power Systems plus solutions and software, organizations can outpace their competitors by delivering faster services, providing differentiated offerings and turning operational cost into investment opportunity.

IBM Power Systems hardware is at the heart of enabling major business and industry transformations fueled by the explosive growth of big data and analytics. Power Systems help organizations drive faster business insights with industry leading performance, scalability and virtualization flexibility.

IBM Power Systems deliver flexibility and choice of operating systems to enable your business to support the next generation applications for big data and analytics and cognitive computing that are transforming how organizations work today. Whether running 1, 2, or all 3 - coupled with PowerVM, they maximize the benefit of Power Systems in your business.

IBM's integrated approach to developing Systems and Systems Software stacks together delivers a platform that supports next generation applications for big data and analytics and cognitive computing on an open platform for choice while providing maximum utilization, availability, and flexibility to help you deliver new advantages to your business.

IBM and IBM Business Partner solutions exploit key benefits in IBM Power Systems’ unique design combined with systems software to provide support for next generation applications for big data and analytics and cognitive computing to providing unprecedented insights into opportunities, threats and efficiencies to your organization.


Over the last five years thousands of clients have migrated to IBM Power Systems. Learn how Power Systems has helped them support next generation applications for big data and analytics and cognitive computing on an open platform for choice while improving business performance, reducing risk, and establishing a platform for growth.