Dell PowerVault MD 32XX/36XX Series Storage Arrays CLI Guide

Consistency checks are performed when media scans are run, if consistency check is enabled on the virtual disk. During a consistency check, all data blocks in a virtual disk are scanned, and deteriorated data is corrected. The method of correction depends on the redundant array of independent disks (RAID) levels:

RAID 5 and RAID 6 virtual disks	Consistency is checked and repaired.
RAID 1 virtual disks	The data is compared between the replicated physical disks, and data inconsistencies are repaired.
RAID 0 virtual disks	No redundancy exists. NOTE: Do not run consistency checking commands on RAID 0 virtual disks.

Before attempting a consistency check, you must enable consistency checking using the set virtualDisk command. Use the following command to set the consistencyCheckEnabled parameter to TRUE:

set (allVirtualDisks | virtualDisk
                                    [
                                    virtualDiskName] | virtualDisks [
                                    virtualDiskName1
                                       ... virtualDiskNameN
                                    ] | virtualDisk <
                                    wwid>
                                    consistencyCheckEnabled=TRUE
                                 

Once you have enabled both media scan and consistency check, use the check virtualDisk consistency command to write the results to a file (specified by the mediaErrorFile and consistencyErrorFile parameters):

check virtualDisk [
                                    virtualDiskName] consistency 
                                    [consistencyErrorFile=
                                    filename] 
                                    [mediaErrorFile=
                                    filename]