HP StorageWorks HSG80 ACS Solution Software V8.8 for Tru64 UNIX Installation and Configuration Guide (AA-RV1VA-TE, March 2005)

Preparing the Host System
105HSG80 ACS Solution Software V8.8 for Tru64 UNIX Installation and Configuration Guide
Verifying Disk Array Device Recognition
Use the scu show edt command at the UNIX prompt to see the list of new
disk array devices. The device files are created for each logical unit automatically
in Tru64 UNIX during system startup.
1. Verify the character-type device files have been automatically created:
Tru64 v4 example:
# file /dev/rrz*
Tru64 v5 example:
# file /dev/rdisk/dsk*
2. Verify the block-type device files have been automatically created:
Tru64 v4 example:
# file /dev/rz*
Tru64 v5 example:
# file /dev/disk/dsk*
You can verify the allocation for the device files by calculating as follows:
Block type: rzXYZ
Character type: rrzXYZ
X = b through h = LUN1 through LUN7 (no letter is used for LUN0)
Y = SCSI bus number × 8 + SCSI ID
Z = partition (a through h)
Note: Note: Target ID > 8 is not allowed for hosts.
Example of calculation
In this example, OPEN-3 of LUNs 0 through 7 with SCSI ID = 0 is connected to
the card containing SCSI bus number = 1. With this calculation, Y=1x8+0=8, the
following device files are allocated to each partition of LUN1 (X = b):
rzb8a,rrzb8a,rzb8b,rrzb8b,rzb8c,rrzb8c,
rzb8d,rrzb8d,rzb8e,rrzb8e,rzb8f,rrzb8f,
rzb8g,rrzb8g,rzb8h,rrzb8h