RMAN BACKUP AS COPY from ASM to ZFS is very slow, slower than ASM to ASM and ZFS to ZFS

(Doc ID 1958561.1)

Last updated on JANUARY 13, 2015

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.3 and later
Information in this document applies to any platform.

Symptoms

BACKUP AS COPY using RMAN has a performance issue to copy the files from ASM to ZFS.

Cause

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