Intel SRCU32 - RAID Controller, User Manual

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74 Intel RAID Controller SRCU32 User’s Guide
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NOTE
After a cold boot, the Intel RAID Controller SRCU32 BIOS displays two messages, each beginning
with the controller’s PCI slot number, for example, “[PCI 0/3] 4 MB RAM detected.” The number
after the “/” is the slot number of the controller. This will help determine the order of the Intel
RAID Controller SRCU32s and which host adapter number is assigned to them by UnixWare.
UnixWare Bus Number, Target ID and LUN
Target IDs and LUNs for “Non-Direct Access Devices” (devices like streamers, tapes and
CD-ROMs and therefore not configurable via StorCon), are directly assigned to the SCSI ID and
the channel of the Intel RAID Controller SRCU32. Host drives are assigned in increasing order to
the free coordinates (bus number and target ID; LUN is always 0).
Configuration Example
In the PCI computer are two Intel RAID Controller SRCU32s (HA 0 = First Intel RAID Controller
SRCU32, HA 1 = Second Intel RAID Controller SRCU32), each with two SCSI channels.
1 Hard Drive as host drive no. 0 on HA0
1 Hard Drive as host drive no. 0 on HA1
1 Hard Drive as host drive no. 1 on HA1
1 Streamer SCSI ID 2, LUN 0 on SCSI channel A of HA0
1 CD-ROM SCSI ID 3, LUN 0 on SCSI channel B of HA0
1 DAT SCSI ID 2, LUN 0 on SCSI channel A of HA1
The resulting HA, Bus, Target ID, and LUN are indicated in the following table.
Table 13. UnixWare Bus Number, Target ID, and LUN
HA Bus Target ID Lun Device
0 0 0 0 First hard drive, host drive no. 0 (boot drive)
0 0 2 0 Streamer
0 1 3 0 CD-ROM
1 0 0 0 Hard drive, host drive no. 0
1 0 1 0 Hard drive, host drive no. 1
1 0 2 0 DAT
1 0 3 0 Hard drive, host drive no. 2