The IBM Power6 8203-E4A (#5742) IBM Dual Bus Ultra 320 SCSI Repeater Card</p><p>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. </p><p></p><p>The Ultra 320 SCSI Repeater Card provides the following functions: </p><p></p><p>Provide SCSI enclosure services for all disk drives </p><p>Read power supply unit Vital Product Data ( VPD) </p><p>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. </p><p>Detect hot plugged disk drives and power them on on automatically </p><p>Separate power partitions to each individual drive preventing cage power faults for a single drive fault </p><p>Provide cage power on commands when any attached host adapter is active </p><p>Redrive the SCSI bus to allow SCSI cable lengths up to 20 meters </p><p>Provide SCSI bus terminations for host and drve busses </p><p>Attributes provided: SCSI Bus connection </p><p>Attributes required: IBM 7031 Model D24 SCSI Disk StorageDrawer or a #5786 TotalStorage EXP24 Disk Drawer. </p><p>For 8203-E4A: The IBM Power6 8203-E4A (#5742) </p><p>Minimum required: 0 </p><p>Maximum allowed: 91 (Initial order maximum: 91) </p><p>OS level required: None </p><p>Initial Order/MES/Both/Supported: Both </p><p>CSU: Yes </p><p>Return parts MES: No
