Dell PowerEdge RAID Controller S140 User’s Guide

Managing the physical disk write cache policy for SATA drives

1. Enter the Dell PERC S140 Configuration Utility. See Entering the DELL PERC S140 Configuration Utility.
2. Click Physical Disk Management → Select Physical Disk Operations.
3. Click the link Manage Physical Disk Properties.
   The Manage Physical Disk Properties screen is displayed.
4. Select one or multiple physical disk to apply the write cache policy.
5. Choose from the following physical disk write cache policies:

   Physical disk write cache policies

   Description

   Default

   The physical disk write cache feature is enabled for:

   • SSDs
   • 3 Gbps HDDs

   The physical disk write cache feature is disabled for 6 Gbps HDDs.

   Enable

   The feature is enabled on the disk selected.

   Disable

   The feature is disabled on the disk selected.

6. Click Apply to save the changes made.
   NOTE: Ensure that you change the physical disk write cache policy of a global hot spare disk after rebuild to the write cache policy of the last configured virtual disk.

   NOTE: In the View Virtual Disk Properties screen, ensure that the physical disk write cache setting is consistent across the physical disk associated with the virtual disk.

   NOTE: If you have Linux RAID configured on the system, you cannot modify the physical disk write cache policy feature settings.

   NOTE: For more information about the physical disk write cache behavior, see the Troubleshooting your system section.