Technical information

b. Use the vgchange -a -y command to reactivate the volume group to
which the disk belongs.
c. Use the vgsync command to manually synchronize all the extents in the
volume group.
5. If a failed disk was replaced, restore any volumes that were disabled by the disk drive
failure.
For more information on commands pertaining to disk maintenance, refer to the manual HP-UX
Operating System: Fault Tolerant System Administration (R1004H-04-ST).
2.7.1.9 Preparing to Remove a Tape Drive
Tape drives are not hot pluggable devices. Perform the following steps to suspend operation on the SCSI
bus associated with the failed tape drive.
1. Enter the following command to determine the hardware path of the failed tape drive.
/sbin/ftsmaint ls
2. Determine the hardware path of the tape drive to be removed.
The information in the
State and Status fields of the display will show information
on the failed tape drive.
2.7.1.10 Verifying Tape Drive Replacement
1. After the tape drive is configured into the system using the addhardware command,
verify that the tape drive is configured into the system. To do this, enter the following
commands:
ioscan -fn -C tape
ftsmaint ls hw_path
where hw_path is the hardware path to the tape drive.
2. Confirm that the tape drive is present, CLAIMED, and Online, and that device special
files have been created for it in the /dev/dsk and /dev/rdsk directories.
There is substantial overlap between the ftsmaint and ioscan commands, but the
ftsmaint command does not include the device file names and the ioscan command
does not include the Status information.
3. Verify that you can read and write to and from the device. One way to do this is through
the tar command. In the following example, the first tar command writes the
/etc/passwd file to tape using a device special file shown in the ioscan output from
11.00.01 Operating and Maintenance Procedures
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