Table 1. Solid-state drive rules for the IBM AIX, IBM i, or Linux operating system for a system, enclosure, or
expansion unit (continued)
System, enclosure, or expansion unit Adapter
Mixing rules
5887 disk drive enclosure
v
FC 5805 (PCIe 380 MB Cache Dual
- x4 3 Gb SAS RAID Adapter)
v
FC 5901 (PCIe Dual x4 SAS
Adapter)
v
FC 5908 (PCI-X DDR 1.5 GB Cache
SAS RAID Adapter)
v
FC ESA1 (PCIe2 RAID SAS
Adapter Dual-port 6 Gb)
v
FC ESA1 (PCIe2 LP RAID SAS
Adapter Dual-port 6 Gb)
v
PCIe2 (3.1 GB Cache RAID SAS
Enclosure 6 Gb x8)
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, or a pair of
adapters. The EXP24S can also be
attached to an embedded SAS
controller in a system with an
embedded SAS port.
v
The mixing of the SSDs and HDDs
is as follows:
– SSDs and HDDs cannot be
mixed in a logical group when
configured as in mode 1.
– SSDs and HDDs can be mixed
when configured as in mode 2:
one set can be SSDs and the
other set can be HDDs.
– SSDs and HDDs cannot be
mixed when configured as in
mode 4 because the SSDs are
not supported by the adapter
that is required to configure the
5887 for mode 4.
Disk drives or solid-state drives
3
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