Users Guide

Table Of Contents
Table 44. Hot Spare Properties (continued)
Property Definition
NOTE: The status of the virtual disk is determined by the
severity level you specify for this policy.
Resetting The Hot Spare Protection Policy
Clear RAID Layout to reset the dedicated hot spare protection policy.
Global Hot Spare Protection Policy
Table 45. Global Hot Spare Protection Policy Properties
Property Definition
Enable Global Hot Spare Enables the Global Hot Spare Protection Policy.
Minimum Number of Disks Displays the minimum number of physical disks to be assigned
as global hot spares for the controller.
Severity Level Displays the severity level that you must assign to the
generated alert, if the Global Hot Spare policy is violated.
Consider Global Hot Spare Policy when determining
Virtual Disk status
Storage Management considers the Global Hot Spare policy
to determine the status of the virtual disk. The status of the
virtual disk is determined by the severity level you specify for
this policy.
NOTE: When assigning a global hot spare, consider a physical disk that has higher capacity, which can replace a disk when
a disk fails in the controller.
Considerations For Hot Spare Protection Policy
The dedicated hot spare protection policy is not applicable to SAS/iR, PERC, and H200 controllers.
RAID 0 does not support hot spares or protection policy.
For SAS/iR and PERC H200 family of controllers, you can assign only two global hot spares.
If the status of the virtual disk is displayed as Degraded or Failed because of the hot spare protection policy violation, then
assign the required number of hot spares (as defined in the protection policies) for the status to be displayed as normal.
The Hot-Spare Protection Policy is not applicable for all software RAID controllers.
Considerations For Enclosure Affinity
Enclosure affinity settings for a global/dedicated hot spare are not automatically set when you upgrade to version 6.1. Enclosure
affinity settings for a global/dedicated hot spare are not automatically set when you import a foreign virtual disk.
Dedicated Hot Spare Considerations
The following considerations apply to dedicated hot spares:
Considerations for RAID 10, RAID 50, and RAID 60 If you have created a RAID 10 or RAID 50 virtual disk that does not
fully consume its member physical disks, then you cannot assign a dedicated hot spare to the RAID 10 or RAID 50 virtual
disk. Storage Management does not allow you to create RAID 10 and RAID 50 virtual disks from partial physical disks. You
therefore do not encounter this situation if you use Storage Management to create your virtual disks. If, however, the RAID
10 or 50 virtual disk was created using another application and if it does contain partial physical disks, then you can assign a
dedicated hot spare to the virtual disk.
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Protecting Your Virtual Disk With A Hot Spare