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HP Ultrium drives technical reference manual, volume 5: UNIX configuration guide 17
HP restricted
4IBM (AIX)
Determining the SCSI ID
Before you configure your system to support Ultrium drives, determine which SCSI ID to use. IDs must
be unique for each device attached to the SCSI bus. To list existing devices, use the following
command:
% lsdev -C |grep SCSI
This produces output similar to:
scsi0 Available 00-00-0S Standard SCSI I/O Controller
hdisk0 Available 10-60-00-0,0 16 Bit LVD SCSI Disk Drive
rmt1 Defined 00-00-0S-2,0 Other SCSI Tape Drive
The SCSI ID is in the series 00-00-0S-X,0, where X is the SCSI ID. Review the list of existing SCSI
IDs and choose an available ID to assign to the new tape drive.
Configuring the device files
To install an HP Ultrium drive on an IBM workstation, create the appropriate device files for the
drive.
NOTE: Do not choose the smit option of “4mm2gb” as the Tape Device Type. This is reserved for
Connor drives. If you use it with HP drives, you will get the error “Device to be configured
does not match the physical device at the specified connection location”.
To change to variable block mode, use the following procedure:
1. If you are using a graphics terminal running X-Windows, at a Windows terminal, type:
smit tape
If you are using a non-graphics terminal, at the command line type:
% smit -C tape
2. If no device has been configured at this address before, select “add a tape drive” to set up
the address. From the pop-up window, select “ost” or “Other SCSI tape drive” as the tape
drive you wish to change and choose connection addresses as appropriate.
3. Set maximum delay for the READ/WRITE command=1200.
4. Change the block size field to 0, and click on the “DO” button or press [Enter] to apply the
change.
HP Ultrium drives will work with tar, cpio, backup, restore and dd. For systems other than the
43P, the drive is also boot-capable, provided a boot tape is generated using mkszfile and
mksysb.