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High cpreads compared to writes

Hello,

 

Seeing some latency issues to some LUNs used by SQL. Looking at the STATIT Disk Statistics for the holding aggregate, the disks aren't heavily utilised (aroung 50%) but noticed the cpreads figure is over double the amount of writes and about half the amount of ureads.

 

Do you think this is a case for reallocation on the LUNs?