Learn about the PCI-X double-wide, quad-channel Ultra320 SCSI RAID controller for IBM System i5™ and eServer™ i5.
Features
The PCI-X double-wide, quad-channel Ultra320 SCSI RAID controller is a high-performance SCSI adapter combined with an auxiliary-write cache adapter to form a double-wide, adapter pair. The two adapters are screwed together.- 3 external U320 SCSI ports
- 1 internal U320 SCSI port dedicated to connecting the controller to the auxiliary-write cache adapter
- Up to 36 Direct Access Storage Devices (DASD) can be externally attached per adapter
- 320 MB/s data rate per SCSI bus
- Supports low voltage differential (LVD) disk devices only
- Supports RAID 5 and 6 (3–18 drive sets)
- 390 MB/1.5 GB compressed write cache
- 415 MB/1.6 GB compressed read cache
- PCI-X DDR support (adapter side)
- IOP or IOPless (5739 is requires an IOP. 5778 does not.)
| A | Battery cover |
| B | SCSI port 2 |
| C | SCSI port 0 |
| D | SCSI port 1 |
Specifications
| Item | Description |
|---|---|
| Adapter FRU number | 42R5261 |
| Cache battery FRU number | 42R3965 |
| Series type | IBM System i5 and eServer i5 |
| Unit description |
|
| Operating system or partition requirements | This feature is supported in i5/OS® V5R3,
V5R3m5, and V5R4 with PTFs. Check the IBM® Prerequisite Web site at http://www-912.ibm.com/e_dir/eServerPrereq.nsf |
| Maximum number | For system-specific adapter placement, see PCI placement in the system unit or expansion unit. |
Installation notes
Logical Partitioning (LPAR)
When used in an Logical Partition (LPAR) environment this double-wide adapter must have both slots of the adapter assigned to the same logical partition. When doing Dynamic Logical Partitioning (DLPAR), both slots of the adapter must be managed together.
Concurrent maintenance
Both PCI slots need to be powered off when installing or removing this adapter with the system power on.
Because of the complexity of this adapter, concurrent maintenance is not supported through the HMC. Concurrent maintenance must be done from the Hardware Service Manager (HSM).
Installing the adapter in a cassette
To install this adapter in a cassette, first remove the adapter handle (B), and the two, plastic covers from the SCSI jumper cable (A), as shown in the following figure. Then follow the general procedures to Place an adapter in the PCI adapter double-wide cassette.
