Table 2. Positions of the hard-disk-drive toggle switch (continued)
Operating system
Position 1
Position 2
Position 4
Linux
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
Note:
FC means feature code.
Tip:
If you are planning to configure RAID arrays, ensure that you have the minimum
number of available disks for each RAID level:
RAID 0
Minimum of one drive per array
RAID 5
Minimum of three drives per array
RAID 6
Minimum of four drives per array
RAID 10
Minimum of two drives per array
For additional SAS RAID controller information for the AIX operating system, see SAS
RAID controller for AIX.
For additional SAS RAID controller information for the Linux operating system, see SAS
RAID controller for Linux .
For information related to device parity protection, see Device parity protection.
b.
Connect a SAS adapter to your disk drive enclosure as follows:
1)
To select a cabling configuration that suits your requirements, see the following table.
2)
Cable the disk subsystem in the 58/02 expansion unit.
Note:
For SAS cable information, see Serial-attached SCSI cable planning (http://
publib.boulder.ibm.com/infocenter/systems/scope/hw/topic/p7had/p7hadsascabling.htm).
Table 3. Configuration requirements of the 5802 disk subsystem
Configuration features
Configuration requirements
Two hard-disk-drive partitions with nine disks per
hard disk drive partition.
A multi-initiator high-availability configuration.
Dual Serial-attached SCSI (SAS) connectivity to all
drives.
For related physical cabling, see Figure 11 on page 14.
Operating system: AIX, , or Linux
SAS adapter card: Either two (FC 5901) - PCIe Dual -
x4 SAS Adapters or two (FC 5903) - PCIe Dual - x4
3Gb SAS RAID Adapters
Hard-disk-drive partitions switch: position 2
Cables: Four (FC 3688) - SAS cables (AT) 0.6 meter.
Notes:
v
For AIX and Linux operating systems, this must be a
RAID configuration.
v
You must have a minimum of one disk drive per
hard-disk-drive partition.
12
Power Systems: Installing the 58/02 and 58/77 expansion units
Summary of Contents for ESCALA Power7 5802
Page 1: ...ESCALA Power7 Installing the 5802 and 5877 expansion units REFERENCE 86 A1 27FF 05...
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Page 6: ...iv Power Systems Installing the 58 02 and 58 77 expansion units...
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