Effected NV Version: NetVault Backup All
OS Version: All
Plugin version: NA
Application version: NA
Description: NetVault Technical Bulletin March 2006
For all NetVault customers who have purchased a license for NetVault Backup, we would like to take this opportunity to inform you of an important note regarding the changing of the “Blocks to Write” or
‘Blocks to Read”, which has been changed from the default value of 1. In certain scenarios, where the default has been changed to a number greater than 2, a tape may not be Restorable.
Problem description of issue affecting the Restore of tape sessions.
Physical tape media may not be restorable due to an inability to scan the tape back into the NetVault database.
-A tape device, where the “Blocks to Write” or “Blocks to Read” has been changed from the default value of 1 and the tape no longer exists in the NetVault Database.
In the above instance, there will be scenarios in which a tape will not be Restorable.
BakBone strongly recommends that users not change device settings from their default values unless instructed to do so by BakBone Support and they test the ability to Restore after any changes to the device are made, this includes the ability to scan media into an empty NetVault database.
Correction for future backups:
1.Set the “Blocks to Write” and “Block to Read” back to the default value of 1.
2.Set the blocksize of both the virtual media and the physical media back to the default value of 32 KB.
Suggested Workarounds for current backups:
1.Set the “Blocks to Write” and “Block to Read” back to the default value of 1. This has proven to work in some scenarios where the Blocks to Write were originally set to no higher than 4. You may need to modify the device to match the blocksize used at the time of the backup.
2.If the tape exists in another NetVault database, S
Please refer to the text above