RMAN restore slow: 128K write buffer size

Oracle version 10.2 (10.2.0.4)

According to “RMAN Restore Performance from Tape is Very Poor (Doc ID 850988.1)” the alter system set “_BACKUP_KSFQ_BUFSZ”=1048576; should solve the issue of small write chunks.

Remains to be tested but it looks promising.

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