Slow backup on tape drive after SP upgrade to 5300-05-06

[alabissiere]

After upgrading my AIX system from AIX 5300-05-00 to 5300-05-06, the backup time on tape drive 3580 has increased twice the time it was before the Service pack upgrade. I have to remove stuff from the backup to make sure the backup is complete in the timeframe I have to respect. The block size on the tape is set to 0. What can be the problem?

 

[khalidaaa]

I have the same LTO3 tape drive with the same os level and i have no problems! it takes almost 1 min to backup 1GB of data! Could it be the tape block size?!?! Did you restart the server after the upgarde?

Regards,
Khalid

 

[MoreFeo]

Did you specify apply only or commit when upgrading to 5300-05-06?

If you specified apply, it saves a copie of the previous version of a lot off packages. This takes a lot of space, and that can make the backup time to increase.

You should go to smit installation menus, and do a commit of applied software. This will remove the older copies.