IBM Power System 5148-22L Manual page 125

Table 3. Solid-state drive rules for the 8408-44E or 8408-E8E system.
System Controller
8408-44E or 8408-E8E PCIe3 x8 cache SAS RAID
internal controller 6 Gb
(FC EPVN; Dual CCIN
2CCA)
PCIe3 x8 SAS RAID
internal controller 6 Gb
(FC EPVP; Dual CCIN
2CD2)
PCIe3 x8 SAS RAID
internal controller 6 Gb
(FC EPVQ); Two single
controllers (CCIN 2CCD)
Solid-state drive rules for the 5887 disk drive enclosure
Table 4. Solid-state drive rules for the 5887 disk drive enclosure.
Disk drive enclosure
5887 disk drive enclosure
(EXP24S SFF Gen2-bay Drawer)
Solid-state drive rules for the ESLS storage enclosure
Mixing rules
v Dual SAS RAID controllers
v Dual write cache RAID
v 8x SFF 2.5 in. plus 4x 1.8 in. SDD
v SSDs and HDDs can be mixed in the SFF 2.5 in. bays, but
cannot be mixed in the same RAID array.
v SSDs and HDDs can be configured in RAID 0, 10, 5, 6, 5T2,
6T2, 10T2, depending on the OS support. (JBOD is not
supported.)
v Dual SAS RAID controllers
v No write cache RAID
v 8x SFF 2.5 in. plus 4x 1.8 in. SDD
v SSDs and HDDs can be mixed in the SFF 2.5 in. bays, but
cannot be mixed in the same RAID array.
v SSDs and HDDs can be configured in RAID 0, 10, 5, 6, 5T2,
6T2, 10T2, depending on the OS support. (JBOD is not
supported.)
v Two single SAS RAID controllers
v Each controller owns 4x SFF 2.5 in. plus 2x 1.8 in. SDD
v SSDs and HDDs can be mixed within each side of a split
disk backplane in the SFF 2.5 in. bays, but cannot be mixed
in the same RAID array.
v HDDs can be configured as just a bunch of disks (JBOD) or
in RAID 0, 10, 5, 6, 10T2, depending on the OS support.
v SSDs must be configured in RAID 0, 5, 6, 10, or 10T2.
Mixing rules
v A maximum of 24 drives are supported in this enclosure.
v The EXP24S can be configured as one set of 24 bays (mode 1), two sets of 12
bays (mode 2), or four sets of 6 bays (mode 4).
v The EXP24S serial-attached SCSI (SAS) ports are attached to SAS controllers,
which can be a SAS Peripheral Component Interconnect-X (PCI-X) adapter, PCI
Express (PCIe) adapter, PCI Express Gen2 (PCIE2), PCI Express Gen3 (PCIe3)
adapter or a pair of adapters.
v The EXP24S can also be attached to a pair of internal SAS controllers (FC EJ0U)
in a system with an external SAS port.
v The mixing of the SSDs and HDDs is as follows:
– SSDs and HDDs cannot be mixed when configured in mode 1.
– SSDs and HDDs can be mixed when configured in mode 2: one disk partition
can be SSDs and the other disk partition can be HDDs, but you cannot mix
within a disk partition.
– SSDs and HDDs can be mixed when configured in mode 4 depending on the
adapter support. Each disk partition can be either SSDs or HDDs, but cannot
mix within a disk partition.
Disk drives or solid-state drives
107