Disk Scrubbing causing I/O Performance issue on Exadata Cell Server (Doc ID 1684213.1)

Last updated on SEPTEMBER 12, 2016

Applies to:

Oracle Exadata Storage Server Software - Version 11.2.3.3.0 and later
Information in this document applies to any platform.

Symptoms

Observing high I/O load and/or latency on exadata rack. $CELLTRACE/alert.log of storage cells shows the following messages, which indicate that disk scrubbing is running:


alert.log
=====================

 

Changes

Recent upgraded to Exadata 11.2.3.3.0 software version. 

Cause

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