Learn about the specifications and installation notes for the auxiliary-write cache IOA adapter and the PCI-X Ultra4 RAID disk-controller adapters used with it.
Feature 5580 includes a 2780 Peripheral Component Interconnect-X (PCI-X) Ultra4 RAID disk-controller adapter, a CCIN 5708 auxiliary-write cache IOA adapter, and the required connection cable. Feature 5581 includes a 2757 PCI-X Ultra RAID disk-controller adapter, a CCIN 5708 auxiliary-write cache IOA adapter, and the required connection cable.
A physical cable connection is required between the 5708 adapter and SCSI port 4 of a 2780 or 2757 adapter. Both the 5708 adapter and the disk-controller adapter it is connected to must be installed in the same physical system unit or expansion unit, and must be installed in the same partition.
The 5708 adapter has 757 MB of auxiliary maximum compressed write cache. The adapter mirrors the write cache of the disk-controller adapter that it is connected to. Protection of data is enhanced by having two copies of the write cache stored on separate adapters. If a failure occurs to the write cache of the disk-controller, the 5708 adapter provides a backup copy during the recovery of the failed IOA.
Read the following questions in relation to your system:
If the answer to any of these questions is yes, or you are unsure of the answers, contact your authorized service provider for planning and deployment services.
For planning information and examples of deployment for features 5580 and 5581, see Planning for Disk Storage Availability with Cache Solutions
Item | Description |
---|---|
Adapter FRU number | 39J0686 |
Battery FRU number | 97P4846 |
Cable FRU number | 39J1702 |
Cables | Specific Storage Adapter to Auxiliary Storage Adapter SCSI cable is necessary and is provided with each feature or conversion. |
I/O bus architecture | PCI 2.2 power/bus compliant |
Unit description |
|
Operating system or partition requirements | Supported in the IBM® i operating systems or
partitions only, versions V5R2, V5R3, and later. If you are installing a new feature, ensure that you have the software required to support the new feature and that you determine if there are any existing prerequisites. To do this, use the IBM Prerequisite Web site at http://www-912.ibm.com/e_dir/eServerPrereq.nsf . |
Maximum number | For system-specific adapter placement information, see the PCI adapter placement for machine types 82xx and 91xx or the PCI adapter placement for machine type 94xx topic collections. . |
Partition information |
|
Related information |
|
For instructions on how to install PCI adapters, refer to the PCI adapters topic.
Return here for instruction on installing the SCSI cable.
The disk controller adapter and the auxiliary-write cache adapter are connected by a SCSI cable.
To install the SCSI cable, do the following steps: