ICP GDT RS Series, Руководство пользователя

Страница: 107 / 186

107
SCSI-ID of Not Direct Access
Devices
Used ICP
SCSI channel
UNIX
Target ID
UNIX
LUN
2 A 2 0
3 A 3 0
4 A 4 0
5 A 5 0
6 A 6 0
2 B 2 4
3 B 3 4
4 B 4 4
5 B 5 4
6 B 6 4
Having to determine the Target ID and LUN in such a complicated manner might seem
rather awkward. However, it is necessary to do so because the ICP Controllers have more
than one SCSI channel, whereas UNIX can only manage host adapters with one SCSI chan-
nel. Therefore, the ICP UNIX driver has to make the appropriate transformations.
Configuration Example:
In the PCI computer are two ICP Controllers (HA 0 = 1st ICP, HA 1 = 2nd ICP), each with two
SCSI channels.
1 hard disk
as Host Drive no. 0 on HA0
1 hard disk as Host Drive no. 0 on HA1
1 hard disk 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 A of HA0
1 DAT SCSI-ID 2, LUN 0 on SCSI channel B of HA1
Result:
HA Target-ID LUN Device
0 0 0 1st hard disk, Host Drive no. 0 (boot- and
installation drive)
0 2 0 Streamer
0 3 0 CD-ROM
1 0 0 hard disk, Host Drive no. 0
1 0 1 hard disk, Host Drive no. 1
1 2 4 DAT