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Avg. Disk Sec/Read question

Posted By:      Posted Date: October 26, 2010    Points: 0   Category :Sql Server

Hi guys,

My disk consits 16 disks for RAID10, the Avg. Disk Sec/Read is 19 ms, is it ok?

Here is MS recommendation:

Less than 10 ms - very good
Between 10 - 20 ms - okay
Between 20 - 50 ms - slow, needs attention
Greater than 50 ms – Serious I/O bottleneck

Not sure if I can use the value directly to evaluate the performance of RAID disk without calculating the number of disks and RAID mode.

Less than 20 ms is ok for any kind of RAID consists any amount disks?

Any suggestion would be appreciated.


?dba????(???),???? stswordman#hotmail.com

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