Learn about configuring the 5802 disk-drive subsystem
and how to connect and configure it to meet your requirements.
The
5802 SAS
disk-drive enclosure can hold up 18 disk drives. The disks in this
enclosure can be organized in several different configurations depending
on the operating system used, the type of SAS adapter card, and the
position of the hard disk drive partitions switch.
Notes: - The hard disk drive partitions switch is located at the rear of
the 5802 SAS
disk-drive enclosure. See Model 5802 and 5877 connector locations.
The hard disk drive partitions switch is located just below the SAS
connectors.
- You must power cycle the 5802 SAS disk-drive enclosure
if the hard disk drive partitions switch position is changed, in order
for the 5802 to
sense the new hard disk drive partitions switch position.
The 5802 SAS
disk-drive enclosure supports the following operating systems:
To determine the level of software you need to support
the 5802 SAS
disk-drive enclosure, see the IBM Prerequisite.
Table 1. Hard disk drive toggle switch positions| Operating system |
Position 1 |
Position 2 |
Position 4 |
|---|
| AIX |
- Either a (FC 5901) - PCIe Dual - x4 SAS Adapter or
- two (FC 5903) - PCIe Dual - x4 3Gb SAS RAID Adapters
|
- Either two (FC 5901) - PCIe Dual - x4 SAS Adapters or
- two (FC 5903) - PCIe Dual - x4 3Gb SAS RAID Adapters
|
Four (FC 5901) - PCIe Dual - x4 SAS Adapters |
| IBM i |
Not supported |
- Either two (FC 5901) - PCIe Dual - x4 SAS Adapters or
- two (FC 5903) - PCIe Dual - x4 3Gb SAS RAID Adapters
|
Not supported |
| Linux |
- Either (FC 5901) - PCIe Dual - x4 SAS Adapters or
- two (FC 5903) - PCIe Dual - x4 3Gb SAS RAID Adapters
|
- Either two (FC 5901) - PCIe Dual - x4 SAS Adapters or
- two (FC 5903) - PCIe Dual - x4 3Gb SAS RAID Adapters
|
Four (FC 5901) - PCIe Dual - x4 SAS Adapters |
Note: FC means feature
code.
|
Tip: If you are going to configure RAID arrays, ensure
that you have the following minimum number of available disks for
each RAID level:
- RAID 0
- 1 drive minimum per array
- RAID 5
- 3 drives minimum per array
- RAID 6
- 4 drives minimum per array
- RAID 10
- 2 drives minimum per array
For
additional SAS RAID controller information for AIX, see SAS RAID controller for AIX .
For
additional SAS RAID controller information for Linux, see SAS RAID controller for Linux .
For
information related to device parity protection, see Device parity protection.
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