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Dell PowerEdge RAID Controller 11 User’s Guide PERC H755, H750, H355, and H350 Controller Series

Physical disk takes a long time to rebuild

Issue:
A physical disk is taking longer than expected to rebuild.
Description:
A physical disk takes longer to rebuild when under high I/O stress. There is only one rebuild I/O operation for every five host I/O operations.
Corrective Action:
If possible, reduce I/O stress on the physical disk or increase the value of rebuild rate controller parameter.

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