Table B-3. Virtual Disk States

State Definition

Degraded A physical disk in a redundant virtual disk has failed. Additional failures might result in lost data.

Failed One or more physical disks have failed. The virtual disk has gone offline. The virtual disk cannot restore the data.

Non-RaidA Non-Raid physical disk is automatically linked to a Non-Raid virtual disk for use with a PERC S100 controller or PERC S300 controller.

Normal A virtual disk has been created and its preparation process has been completed.

Ready A redundant virtual disk has been created, and is ready for additional preparation.

Failure States

Whether a virtual disk is marked as Failed or Degraded depends upon what RAID level virtual disk it is, and how many physical disks of the virtual disk have failed. In Table B-4 note the changes in state.

If a rescan of all channels is performed after disconnecting a physical disk, the state of every virtual disk using the disconnected physical disk changes from the Ready state to either the Failed or Degraded state, depending on the virtual disk’s RAID level.

For additional information about rescanning to update storage configuration changes, see the OpenManage documentation available on the Dell Support website at support.dell.com/manuals.

Table B-4. Failure Status by Virtual Disk RAID Level

Virtual Disk RAID Level

Failure Status

Description

 

 

 

RAID 1, RAID 5

Degraded

A single physical disk fails.

 

 

 

RAID 10

Degraded

A single physical disk fails in one or

 

 

more of the mirrored sets.

 

 

 

Volume, RAID 0

Failed

A single physical disk fails.

 

 

 

RAID 1 or RAID 5

Failed

Two or more physical disks fail.

 

 

 

RAID 10

Failed

Two physical disks in a mirrored set

 

 

fail.

 

 

 

Appendix B

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Image 85
Dell S100, S300 manual Failure States, Table B-3. Virtual Disk States State Definition