Datasheet

Small form factor
Maximum internal hard disk and memory capacities may require the replacement of any standard hard drives and/or memory and the population of all hard
disk bays and memory slots with the largest currently supported drives available.
*
**
Building block
_` AMD
Opteron LS20
OpenPower 710
2
OpenPower 720
2
p5-505 p5-550/550Q
Node type Compute Management/
storage
Management/
storage
Compute/
management/
storage
Compute/
management/
storage
Packaging 14 per rack drawer
(7U)
Rack drawer (2U) Rack drawer (4U) Rack drawer (1U) Deskside or rack
drawer (4U)
Processor 2.0, 2.4, 2.6 GHz
single-core AMD
Opteron; 2.0,
2.2 GHz dual-core
AMD Opteron
1.65 GHz POWER5 1.5, 1.65 GHz
POWER5
1.5, 1.65 GHz
POWER5
1.5, 1.9 GHz
POWER5+
L2 cache 1MB—single-core
1MB/core—dual-
core
1.9MB 1.9MB 1.9MB 1.9MB per
processor pair
Memory (standard) 1GB or 2GB 512MB or 1GB 512MB or 1GB 1GB to 32GB 1GB to 64GB
HDD bays 2 (SFF* fixed SCSI) 4 (hot-swap SCSI) Four standard, plus
four optional (10K
or 15K rpm disks)
Two (10K or
15K rpm disks)
Four standard, plus
four optional (10K
or 15K rpm disks)
I/O expansion slots 1 PCI-X (64-bit) 3 PCI-X (64-bit) 5 hot-plug PCI-X
(64-bit)
PCI-X 2.0 (two
266 MHz (DDR))
5 PCI-X
(4 – 133 MHz;
1 – 266 MHz (DDR))
Integrated storage
controllers
LSI 1020 SCSI Ultra320 SCSI
(dual-ported)
Ultra320 SCSI
(dual-ported)
Ultra320 SCSI Ultra320 SCSI
Integrated Ethernet
controllers
Dual Gigabit
Ethernet
Dual Gigabit
Ethernet
Dual Gigabit
Ethernet
Dual Gigabit
Ethernet
Dual Gigabit
Ethernet
System expansion
Max memory 8GB 32GB 64GB
SCSI internal storage
(minimum/maximum)
36GB/146GB 73.4GB/1.2TB 73.4GB/2.4TB 73.4GB/600GB 73.4GB/2.4TB
IDE internal storage
(minimum/maximum)**
— — — — —
SATA internal storage
(minimum/maximum)
— — — — —
System connectivity
for Cluster VLAN
Gigabit Ethernet,
Myrinet, InfiniBand
Gigabit Ethernet,
Other
Gigabit Ethernet,
Other
Gigabit Ethernet,
Myrinet, InfiniBand
Gigabit Ethernet,
Myrinet, InfiniBand