Date: Apr 08
Product & Version: All
OS Version: All
Module & Version: All
Application version: Ontap 7.0.4 and below
When running restores from an NDMP attached drive, the jobs fails with an error "Failed to space to data on stream".
Additionally, an information message is logged: "NDMP: NORMAL 0: Unable to seek to location ### on tape."
When using an NDMP attached drive, NetVault does not control the device directly. Instead, it sends a position request through NDMP, and the filer's NDMP daemon then interprets this and issue the required command.
Engineering has determined in our fault NCG-303 that in Ontap versions until and including 7.0.4, the filer ends up issuing an illegal SCSI space command with a value > 8388607 for position requests to large offsets on the tape. The correct behaviour would be to split this request up into several smaller space commands with values = 7.0.5. The NetApp Bug ID for this is BURT 159017.
Upgrade your Ontap version. Alternatively, you should be able to restore from these tapes if the device is attached to a machine that is under direct control of NetVault.