5742-8203 - IBM Dual Bus Ultra 320 SCSI Repeater Card

The IBM Power6 8203-E4A (#5742) IBM Dual Bus Ultra 320 SCSI Repeater Card

The Dual Bus Ultra 320 SCSI repeater card provides the paths to transmit the differential SCSI signal from a cable to the DASD backplanes contained in the IBM 7031 Model D24 Ultra 320 Expandable Disk Storage Drawer or the #5786 TotalStorage EXP24 Disk Drawer. This high availability dual initiator feature allows the connection of two adapter cards to a SCSI group. The high availability SCSI connection feature can be used on any or all of the drive groups in the 7031 Model D24 and feature #5786 in conjunction with other drive groups in the enclosure using the standard IBM Single Bus Ultra 320 SCSI Repeater Card (FC #5741). The Dual repeater option can also be used to connect all 12 of the front drives or all 12 of the rear drives into a single SCSI bus of 12 drives.

The Ultra 320 SCSI Repeater Card provides the following functions:

Provide SCSI enclosure services for all disk drives

Read power supply unit Vital Product Data ( VPD)

Monitor power line voltage EPOW (Early Power Off Warning) signals from the power supplies and assert SCSI reset to prevent data corruption during power failures.

Detect hot plugged disk drives and power them on on automatically

Separate power partitions to each individual drive preventing cage power faults for a single drive fault

Provide cage power on commands when any attached host adapter is active

Redrive the SCSI bus to allow SCSI cable lengths up to 20 meters

Provide SCSI bus terminations for host and drve busses

Attributes provided: SCSI Bus connection

Attributes required: IBM 7031 Model D24 SCSI Disk StorageDrawer or a #5786 TotalStorage EXP24 Disk Drawer.

For 8203-E4A: The IBM Power6 8203-E4A (#5742)

Minimum required: 0

Maximum allowed: 91 (Initial order maximum: 91)

OS level required: None

Initial Order/MES/Both/Supported: Both

CSU: Yes

Return parts MES: No