Morning gents,
I am experiencing a really weird and inconsistent issue with my backups. The error revolves around the following:
Backup- GUINNESS-FAS02:10000
An unknown error occurred on device "HP 0007".
V-79-57344-34035 - The block size being used is incorrect.
So our setup is simple:
BackupExec 2010 R3
1 HP Robotic Tape Library called HP003. The model of this library is MSL 4048 / MSL G3 Series
4 tape drives as part of the library called HP004, HP006. HP0007 and HP0008. The model of each of these drives is HP Ultrium 5-SCSI
We have two NetApp devices each of which have 2 controllers (NetApp1 consists of controllers Netapp-A and NetApp-B and NetApp 2 device consists of controllers NetApp-C and NetApp-D)
We have 2 device pools created where the first device pool consists of 3 drives (HP0004, HP0006 and HP0007) and backs up data from the NetApp1 device. We have a second device pool that consists of 1 drive (HP0008) that serves backups from the NetApp2 device.
The drives all have the same settings:
Enable Compression
Block Size (per device) = 64kb
Buffer Size (per device) = 256kb
Buffer count = 20
High Water count = 10
Read single block mode = disabled
Write single block mode = disabled
Read SCSI-passthrough mode = disabled
Write SCSI-passthrough mode = disabled
So this error is really strange........when a daily incremental fails, I leave it and do absolutely nothing. The very next day, when the scheduled job runs , it completes fine!!! What gives?
I think I recall a backup job failing during the early hours with the same error and when I came in the morning and hit retry job, it worked and completed fine!
I can't understand these random success/failures and was hoping you guys might be able to chime in your expertise. Is there a way that I can avoid any future failures?
Thanks,
