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RMAN no channel allocated for maintenance

Posted by Pavan DBA on December 23, 2010

Many a times, when you issue some commands in RMAN you may receive following error

RMAN> run
allocate channel c1 device type sbt_tape;
delete noprompt obsolete;

released channel: c1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of crosscheck command at 12/23/2010 10:57:21
RMAN-06091: no channel allocated for maintenance (of an appropriate type)

This is because of command change across versions especially between 9i and 10g. The command which we used above is for 10g and will not work in 9i.

Use the below way to use rman commands in 9i

RMAN> allocate channel for maintenance type sbt_tape;

allocated channel: ORA_MAINT_SBT_TAPE_1
channel ORA_MAINT_SBT_TAPE_1: sid=1059 devtype=SBT_TAPE
channel ORA_MAINT_SBT_TAPE_1: VERITAS NetBackup for Oracle – Release 6.0 (2008012304)

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