Hi all,
I have recently upgraded the tape library we use to do our weekly DR Vault from 2 to 4 tape drives, but I am having trouble getting the Vault process to use 4 tape drives simultaneously.
I have created the touch file VLT_MAXIMIZE_DRIVE_UTILIZATION_FOR_DISK in the Bin folder in the install location; I have checked that all of these drives are in the appropriate storage group, and that they all work. If I restart the Vault job, it is a different combination of drives that end up being used but it still only picks 2 out of the 4. Interestingly, if I try to run another vault job it will not use the two remaining drives but will advise that the resource limit has been reached (but this could be because the duplication lock cannot be assigned to the second job.)
In the Host properties the maximum vault jobs is set to 50, but I think this means the parent vault jobs rather than the number of concurrent batches for each vault.
The job advises it's doing 29 batches, 4 start but 2 of the spawned jobs advise they are awaiting resources, there are plenty of blank tapes in the library for it to use, the job even has one allocated, it shows >
awaiting resource MediaServer3-hcart-robot-tld-1 A pending request has been generated for this resource request.
Operator action may be required. Pending Action: No action.,
Media ID: DR0489, Barcode: DR0489, Density: hcart, Access Mode: Write,
Action Drive Name: N/A, Action Media Server: MediaServer3, Robot Number: N/A, Robot Type: NONE,
Volume Group: 000_00001_TLD, Action Acs: N/A, Action Lsm: N/A
In the above you can see the Storage unit resource that has been requested is MediaServer3, I have checked the other running batches and they all have different Storage unit resources requested so I don't think it's that? Is there somewhere something which is telling the vault to only process so much at a time as I am at a loss as to where else to look.
I am using Netbackup 7.5.0.6, the master server is Win 2003, as are 3 of the media servers, with one media server being Win 2008 Standard.
Any help would be appreciated