Solaris sd / ssd Driver - How to Disable the disksort Flag for Externally Cached Storage, Such as EMC and HDS (Doc ID 1010505.1)

Last updated on SEPTEMBER 08, 2016

Applies to:

Sun Storage 9980 System - Version Not Applicable and later
Sun Storage 9970 System - Version Not Applicable and later
Sun Storage 9985 System - Version Not Applicable and later
Sun Storage 9990 System - Version Not Applicable and later
Sun Storage 9990V System - Version Not Applicable and later
All Platforms
***Checked for relevance on 22-06-2015***

Goal

Description
The disksort flag in the sd/ssd driver makes use of a routine named disksort to reorder IO requests at the driver level. This routine is not required for IO requests that are sent to large cache-enabled storage devices.

Note: You should always check first with the 3rd party array supplier that the settings are appropriate for your array.

Solution

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