Database Backup and Recovery (MOSC)

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RMAN backup very slow using Netbackup

edited Mar 11, 2016 1:44PM in Database Backup and Recovery (MOSC) 3 commentsAnswered ✓

Hi,

We have a database that holds approximately 6.5TB of data, BLOB majority.

Recently, the backup has become extremely slow, coming to take 84 hours. In the AWR report appear these background wait events:

Event Waits Time-outs% Total Wait Time (s) Avg wait (ms) Waits / txn% bg team

Backup: MML write backup piece 14,548,007 0 248.774 17 3,846.64 94.11

Backup: MML create a backup piece 64 0 2.353 36766 0.02 0.89

Backup: Backup commit MML piece 58 0 1.500 25862 0.02 0.57

Oracle version: Oracle RAC 11.2.0.3.0

Backup Appliance: Netbackup

Does anyone know what can it be?

Thanks!

Polyane.

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