Forum Discussion

Kisad's avatar
Kisad
Level 5
14 years ago

slow rman backup

Hi Friends,   MY DBA is complaining that the rman  backups are taking too long to complete. We have the NIC on the database servers set at 1000MB full. What else should i be checking? Will adding...
7.1.x and Earlier
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Backup and Recovery
NetBackup
  • AAlmroth's avatar
    AAlmroth
    14 years ago

    Immediately from your log, it would seem that it takes until 04:38 before a tape is mounted. This is normally a good indicator that your have run out of available tape drives. The Oracle job is sitting and waiting for over four hours before it can actually start.

    The performance once started is probably at acceptable speed though. You would have to look into finding a backup windows where not all of your tape drives are occupied with other backup/restore/duplication operations.

    /A

AAlmroth's avatar
AAlmroth
Level 6
14 years ago

Immediately from your log, it would seem that it takes until 04:38 before a tape is mounted. This is normally a good indicator that your have run out of available tape drives. The Oracle job is sitting and waiting for over four hours before it can actually start.

The performance once started is probably at acceptable speed though. You would have to look into finding a backup windows where not all of your tape drives are occupied with other backup/restore/duplication operations.

/A