Dell PowerEdge R660 PowerEdge RAID Controller S160 Users Guide - Page 31

Assigning the global hot spare, Unassign a global hot spare, Assigning the dedicated hot spare

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Physical disk write cache policies Enable Disable Description ● SSDs ● 3 Gbps HDDs The feature is enabled on the disk selected. 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. Assigning the global hot spare 1. Enter the Dell PERC S160 Configuration Utility. See Entering the DELL PERC S160 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 S160 Configuration Utility. See Entering the DELL PERC S160 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. 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 S160 Configuration Utility. See Entering the DELL PERC S160 Configuration Utility. 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. UEFI RAID configuration utility 31

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Physical disk
write cache
policies
Description
●
SSDs
●
3 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.
Assigning the global hot spare
1.
Enter the
Dell PERC S160 Configuration Utility
. See
Entering the DELL PERC S160 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 S160 Configuration Utility
. See
Entering the DELL PERC S160 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.
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 S160 Configuration Utility
. See
Entering the DELL PERC S160 Configuration Utility
.
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
.
UEFI RAID configuration utility
31