When running RMAN CLI maintenance commands against backups stored in NVBU (i.e. SBT_TAPE), these hang indefinitely until the NetVault services are stopped.
Some of these commands are: 'DELETE BACKUP', 'DELETE OBSOLETE' , 'CATALOG device type 'SBT_TAPE''...
A channel to device type 'SBT_TAPE' must have been allocated first, or else these commands will succeed as they will run against the DISK device type (FRA).
RMAN> allocate channel for maintenance device type sbt;
allocated channel: ORA_MAINT_SBT_TAPE_2
channel ORA_MAINT_SBT_TAPE_2: SID=51 device type=SBT_TAPE
channel ORA_MAINT_SBT_TAPE_2: Quest NetVault Backup Plug-in for Oracle v.6.1.4
RMAN> delete backup;
....this will hang.
The 'CROSSCHECK BACKUP' command may be the only one to succeeds when allocating a channel to SBT_TAPE.
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