Dell PowerEdge RAID Controller S110 - Manual (Page 47)

Troubleshooting 45
Failure Status by Virtual Disk RAID Level
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.
Use the following information as guidelines to troubleshoot the controller.
Fail to Create a Virtual Disk
The user might not be able to create the virtual disks and may be prompted
with The physical disk is not displayed error message due to
the following:
• The controller cannot communicate with the physical disks.
• A cable might be loose or defective.
• The physical Disk might be a SAS drive.
Re-seat the physical disks in the backplane and check their cables.
Insufficient free space available on the selected physical disks
There must be sufficient available free space on the physical disk(s) used by
the virtual disk.
Incorrect number of physical disks selected for the desired RAID level
See "Understanding RAID Levels" in the RAID Technology Guide, located on
the Dell Support website at dell.com/support/manuals, for a description of
RAID levels and the allowable number of physical disks used with each RAID
level.
A5_bk0.book Page 45 Thursday, May 29, 2014 11:37 AM