Users Guide

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
43 section.
Assigning the global hot spare
1. Enter the Dell PERC S140 Configuration Utility. See Entering the DELL PERC S140 Configuration Utility on page 27.
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 S140 Configuration Utility. See Entering the DELL PERC S140 Configuration Utility on page 27.
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.
NOTE: After a hot spare rebuild, creating new partial virtual disk on the same Linux RAID disk is not supported.
1. Enter the Dell PERC S140 Configuration Utility. See Entering the DELL PERC S140 Configuration Utility on page 27.
2. Click Virtual Disk Management > Manage Virtual Disk Properties.
3. Select the virtual disk that is in the ready state from the drop-down menu.
4. Click Manage Dedicated Hot Spares
5. Select the physical disk that you want to be assigned as a dedicated hot-spare disk.
6. Click the link Add Hot Spare Disk.
Confirmation screen appears.
7. Select Confirm and click YES to complete the dedicated hot spare disk assignment.
Cryptographic erase
WARNING: Performing a cryptograph erase, causes permanent loss of data.
UEFI RAID configuration utility 37