Users Guide

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 on page
44 section.
Assigning the global hot spare
1. Enter the Dell PERC S150 Configuration Utility. See Entering the DELL PERC S150 Configuration Utility .
2. Click Physical Disk Management > Select Physical Disk Operations.
3. Select the physical disk that is in the ready state from the drop-down menu.
4. Click the link Assign Global Hot Spares.
NOTE: A global hot spare disk cannot be created if you have Linux RAID configured on the system.
Unassign a global hot spare
NOTE: Unassigning a hotspare may place the data at risk in the event of a disk failure.
1. Enter the Dell PERC S150 Configuration Utility. See Entering the DELL PERC S150 Configuration Utility.
2. Click Physical Disk Management > Select Physical Disk Operations.
3. Select a global hot spare disk from the drop-down menu.
4. Click the link Unassign Hot Spare.
Confirmation screen appears.
5. Click Yes to confirm.
Assigning the dedicated hot spare
WARNING: Assigning a disk as a hot spare will cause the data on the disk to be permanently deleted.
UEFI RAID configuration utility 37