IBM BladeCenter HS23
12
If memory sparing (rank sparing) is used, then DIMMs population order is the same as that for
independent channel mode (the DIMMs can be installed without matching sizes). In rank sparing mode,
one rank of a DIMM in each populated channel is reserved as spare memory. The size of a rank varies
depending on the DIMMs installed.
Tables 8 lists memory options available for the HS23 server. DIMMs can be installed one at a time, but for
performance reasons, install them in sets of four (one for each of the four memory channels).
Table 8. Memory options for the HS23
Part
number
Description
Max qty
support
ed
Models
where used
1333 MHz DIMMs
46C0563
4 GB (1x 4 GB, 1Rx4, 1.35 V) PC3L-10600 CL9 ECC DDR3 1333
MHz VLP
16
-
46C0564
4 GB (1x 4 GB, 2Rx8, 1.35 V) PC3L-10600 CL9 ECC DDR3 1333
MHz VLP
16
A1x, A2x, B1x, B2x,
B3x, D1x, E1x, F1x,
G1x
46C0568
8 GB (1x 8 GB, 2Rx4, 1.35 V) PC3-10600 CL9 ECC DDR3 1333
MHz VLP
16
91x, E2x
46C0599
16 GB (1x 16 GB, 2Rx4, 1.35 V) PC3L-10600 CL9 ECC DDR3
1333 MHz VLP
16
-
1600 MHz DIMMs
90Y3147
4 GB (2Gb, 1Rx4, 1.5 V) PC3-12800 CL11 ECC DDR3 1600 MHz
VLP RDIMM
16
-
90Y3148
4 GB (2Gb, 2Rx8, 1.5 V) PC3-12800 CL11 ECC DDR3 1600 MHz
VLP RDIMM
16
C1x, C2x, C3x, C4x,
C5x, G2x
90Y3149
8 GB (2Gb, 2Rx4, 1.5 V) PC3-12800 CL11 ECC DDR3 1600 MHz
VLP RDIMM
16
92x, E3x
Internal disk storage options
The HS23 server has two hot-swap drive bays accessible from the front of the blade server. These bays
are connected to the integrated 4-port LSI SAS2004 6 Gbps SAS/SATA RAID-on-Chip (ROC) controller.
The integrated LSI SAS2004 ROC has the following features:
Four-port controller with 6 Gbps throughput per port
PCIe x4 Gen 2 host interface
Two SAS ports routed internally to the two hot-swap drive bays
Two ports can be routed externally to the chassis I/O bays 3 and 4 with SAS Connectivity Card (CIOv)
Supports RAID levels 0 (Integrated Striping), 1 (Integrated Mirroring), 10 (Integrated Mirroring and
Striping), and 1E (Integrated Mirroring Enhanced)
Supports up to 14 drives (up to 12 integrated RAID drives and up to two hot-spare drives) for
integrated RAID configurations
Supports up to 10 integrated RAID drives per integrated volume
Supports up to two integrated volumes
Supports volumes greater than 2 TB for RAID 0, 10, and 1E
