Poor RMAN restore performance from TSM backup (Doc ID 1130593.1)

Last updated on DECEMBER 21, 2016

Applies to:

Oracle Server - Enterprise Edition - Version: 10.2.0.3 and later   [Release: 10.2 and later ]
Information in this document applies to any platform.

Goal

RMAN restore performance from TSM tape backup is extremely poor.
The restore starts normally but after running half an hour it becomes very slow and only one tape drive is used even though 8 channels are allocated.

Media manager is IBM Tivoli Storage Manager for Oracle with Data Protection for Oracle: version 5.5.2.
RMAN backup performance is fine.


Solution

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