Digital PRIORIS HX590 & HX590 DP Server
Service Procedures
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Using Multiple or Multi-Channel SCSI Host Adapters
The following guidelines apply when configuring the server using multiple or multi-channel SCSI host
adapters:
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The SCSI host adapter with the lowest BIOS address is identified by the server as the "primary" SCSI
host adapter. When loading the operating system from a SCSI hard disk drive, this primary or boot drive
must be connected to the primary SCSI host adapter. The SCSI address of the primary SCSI hard disk
drive must be set to the lowest SCSI address connected to the SCSI host adapter.
♦
To improve server performance, you might want to distribute the SCSI devices across the SCSI host
adapters. When arranging SCSI devices, make sure each device connected to a SCSI host adapter is
assigned a unique SCSI address.
♦
Each operating system has different limitations regarding the number of SCSI host adapters that are
supported. Refer to the operating system documentation for additional information.
♦
SCSI IDs on one channel do not interfere with the IDs on another channel. This applies when installing
two SCSI host adapters that implement a different bus as well as dual channels on a single SCSI host
adapter.
Connecting a Single Channel SCSI Bus
To connect SCSI devices to a single channel, perform the following:
1)
Connect the 68-pin SCSI cable connector to the SCSI host adapter.
2)
Connect the SCSI cables as shown in the illustration.
3)
If necessary, connect appropriate power cable to device.
4)
Replace and lock side panels.
5)
Connect external devices and restore power.
6)
Run SCU to configure server.
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