It seems I am always upgrading tape formats in an effort to keep up with my growth. I have decided it would be best for the procedure I follow to be well documented. I use Atape for the drives and I use the Tivoli Storage Manager driver for the library. This is the method I follow for configuring the drives.
1) From TSM:
Save the output from the device queries, and save the current device configuration (the filename is optional):
query library
query drive f=d
query path f=d
query devclass f=d
backup devconfig [ filename=devconfig.bak ]
2) From AIX:
List the tape devices:
lsdev -Cc tape
Remove the drive and library device names:
rmdev -dl
For example, if the drive device name is /dev/rmt1:
rmdev -dl rmt1
3) Upgrade Atape
Ftp the Atape driver in binary mode from ftp://index.storsys.ibm.com/devdrvr/AIX or ftp://ftp.software.ibm.com/storage/devdrvr/AIX
Remove the older Atape driver (optional):
installp -u Atape.driver
Install and commit the Atape driver. For example, if you downloaded the file to /tmp/Atape.12.0.8.0.bin:
installp -acXd /tmp/Atape.12.0.8.0.bin all
Configure the tape device:
cfgmgr -v
(-v is not required but will show where it hangs if it does)
Verify the new devices are Available:
lsdev -Cc tape
(Note: While not always absolutely necessary, it is strongly recommended to reboot the system after upgrading the Atape.driver)
4) From TSM:
While it is recommended to remove and redefine the paths after any hardware change, including upgrading Atape.driver, sometimes it is not necessary to do anything else after upgrading Atape. If the activity log reports I/O errors for the library or drives, sometimes it is only necessary to force the TSM server to communicate with the drives to resolve them:
update path
If this does not resolve the I/O errors, then continue with steps 5-7.
5) Delete the drive and library paths
For each drive:
delete path For the library: delete path 6) Redefine the drive and library paths define path (Use the devconfig file as a guide for the definitions.) References:
define path
IBM Tivoli Storage Manager for AIX Administrator’s Reference
Atape device driver README ftp://index.storsys.ibm.com/devdrvr/AIX/README
