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IBM System p5 550Q Express

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Configuration options
Processor cores Four or eight 64-bit 1.65 GHz POWER5+
Level 2 (L2) cache 1.9MB per processor pair
Level 3 (L3) cache 36MB per processor pair
RAM (memory) 1GB to 64GB of DDR2 SDRAM
Internal disk storage Up to 2.4TB (31.2TB with optional I/O drawers)
Processor-to-memory bandwidth (peak) 42.2 GBps
L2 to L3 cache bandwidth (peak) 105.6 GBps
I/O subsystem bandwidth (peak) 8.8 GBps
Internal SCSI disk bays Four standard, plus four optional (10K or 15K rpm disks)
Media bays Two slimline and one half-high
Adapter slots Five PCI-X (4 – 133 MHz; 1 – 266 MHz (DDR))

Standard features
I/O ports Dual channel Ultra320 SCSI controller (internal; RAID optional)
Dual ported Ethernet 10/100/1000 Mbps controller
Two USB, two HMC, two system ports

Expansion features (optional)
I/O expansion Up to eight 7311-D20 I/O drawers, each providing seven 64-bit PCI-X slots and up to 12 disk bays (10K or 15K rpm disks)
Connectivity support 4 Gigabit Fibre Channel; 10 Gigabit Ethernet, 4x InfiniBand Switch


Virtualization Engine system technologies
POWER Hypervisor Dynamic LPAR
Virtual LAN1
Advanced POWER Virtualization1(optional) Micro-Partitioning; Shared processor pool; VIOS with IVM; Partition Load Manager (AIX 5L only)

Operating systems AIX 5L Edition: AIX 5L V5.2 or later
IBM OpenPower™ Edition: SUSE Linux Enterprise Server 9 for POWER (SLES 9) or later; Red Hat Enterprise Linux AS 4 for POWER (RHEL AS 4) or later


Power requirements 100v to 127v or 200v to 240v AC

System dimensions Deskside: Deskside: 21.1"H x 7.9"W x 30.7"D (533mm x 201mm x 779mm); weight: 91.0 lb (41.4 kg)2
Rack drawer: 7.0"H (4U) x 17.2"W x 27.0"D (178mm x 437mm x 731mm); weight: 91.0 lb (41.4 kg)2
7311-D20 I/O drawer: 7.0"H (4U) x 19.0"W x 24.0"D (178mm x 482mm x 610mm); weight: 101.0 lb (45.9 kg)2

Warranty 8 A.M. to 5 P.M., next-business-day for three years (limited) at no additional cost; on-site for selected components; CRU (customer replaceable unit) for all other units (varies by country). Warranty service upgrades and maintenance are available.

1 Not supported on AIX 5L V5.2
2 Weight will vary when disks, adapters and peripherals are added.

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