What is the default NDMP tape reservation method utilized by BE2012?
I hope this is an easy question, but I've yet to find the right documentation on the matter so I thought I would turn here. Right now my environment looks like this:
Brocade SAN 4gb Fiber Channel Switch
2x Netapp Filers running OnTap 8.1
2x IBM LTO4 Tape drives in a Quantum i6k tape library
1x Dell server running Windows Server 2008 R2 w/ Backup Exec 2012 (fully patched)
Between Netapp1 and Netapp2 I have 8 backup jobs on each filer. These backup jobs are seperated by data type, and there are 4 different media sets utilized between the 2 filers. The issue I'm seeing has to do with reservations. I'm having an issue with tape drives consistantly going offline during my weekly full backups as when 1 job finishes from 1 filer and another job begins that belongs to the other filer, it encounters a reservation conflict and takes the drive offline. The only way I've gotten around this is by assigning all jobs from Netapp1 to Drive1, and all jobs from Netapp2 to Drive2. Even further, I've had to create seperate Media Sets for backup jobs from each.
This segregation is hurting my backup performance, as the backup jobs cannot share the tape drive cluster. Right now, the Netapp is set to *no* tape drive reservation system - I am willing to change it to SCSI or persistant reservations but I need to know which Backup Exec 2012 uses by default. I have a hunch that correcting this should resolve my issues.