Sas Subsystem Base Configuration For The 8202-E4C, 8202-E4D, 8205-E6C, Or 8205-E6D - IBM Power System Series Manual

Table 4. SAS subsystem configurations for the 8202-E4C, 8202-E4D, 8205-E6C, or 8205-E6D system (continued)
SAS RAID cache
subsystem enablement
configuration card
SAS base No
subsystem
with two-way
split drive
backplane (FC
EJ02)
SAS Yes
dual-RAID Note: The
subsystem internal dual
configuration RAID
using internal input/output
disk drives adapters (IOAs)
and external report as CCIN
disk enclosure 57CB and CCIN
(FC EJ01) 2B4C.
Related concepts:
"SAS subsystem service considerations for the 8202-E4C, 8202-E4D, 8205-E6C, or 8205-E6D" on page 13
Review several considerations before servicing features within the SAS subsystem for the 8202-E4C,
8202-E4D, 8205-E6C, or 8205-E6D system.
"Service considerations for the cache battery pack" on page 14
To prevent data loss, follow the procedures before replacing the cache battery pack on the cache RAID
cards.
Related information:
Serial attached SCSI cable planning
SAS subsystem base configuration for the 8202-E4C, 8202-E4D,
8205-E6C, or 8205-E6D
This configuration uses the base backplane.
The following rules apply to this configuration:
v This feature is not available with the IBM i operating system.
v The base backplane uses six drives and cannot function in dual-storage I/O-adapter (IOA) mode or in
high-availability (HA) RAID mode.
v There is a single path to drives.
v Internal adapter slots must be empty (slots Un-P1-C14 and Un-P1-C19).
v Non-volatile RAM (NVRAM) provided by embedded Obsidian module, so drives include JBOD, RAID
0, and 10 formats.
6
SAS subsystem
External SAS
components SAS port cables
None None
External SAS port SAS cable
assembly for
connecting to an
external SAS
drive enclosure
SAS cables Limitations
Not applicable
v IBM i is not
v Connecting to an
v Each set of three
Both SSDs and
v YI cable (FC 3686)
HDDs can be used
- System to SAS
in the internal disk
disk enclosure,
enclosure, but can
single
never be mixed in
adapter/dual path
the same RAID
1.5 meter
array. SSDs and
v YI cable (FC 3687)
HDDs cannot be
- System to SAS
mixed in the
disk enclosure,
external disk
single
enclosure. If an
adapter/dual path
external SAS
3 meter
drawer is attached,
only HDDs are
supported.
supported.
external disk
enclosure is not
supported.
drives can be
HDDs or SSDs.