Filter
Top Products
4–28 Configuring Storagesets
Designating the Host SCSI ID Number
The HSZ80 Array Controller allows multiple hosts on the same SCSI host bus to
access units individually and based on a host port’s SCSI ID number. The
ENABLE_ACCESS_PATH syntax implements this access, but restricts each host on
the same bus from accessing other hosts’ units. For each unit, you must use two
commands:
SET UNIT unit number DISABLE_ACCESS_PATH = ALL
SET UNIT unit number ENABLE_ACCESS_PATH = SCSI ID
The DISABLE_ACCESS_PATH switch disables all hosts from accessing a unit. But,
the ENABLE_ACCESS PATH switch restricts access to a specific host.
NOTE: By default, units are enabled for all SCSI ID numbers. You must first disable
the unit for all SCSI ID numbers, then followed by enabling the unit for a specific
host SCSI ID number.
Example
In Figure 4–3, a DIGITAL UNIX host and a Sun host are connected to Port 1 on the
same host bus. Units D100 and D101 have been assigned to SCSI ID 7, the DIGITAL
UNIX host. Units D102 and 103 have been assigned to SCSI ID 6, the Windows NT
host.
NOTE: Figure 4–3 shows an example of a heterogeneous host configuration. For
supported host operating systems, refer to the
HSZ80 Array Controller ACS
Version 8.3 Release Notes
.