146 Configuration: Disk Groups and Virtual Disks• Recovered media error—Data could not be read by the physical disk on thefirst attempt but was successfully read on a subsequent attempt. Data isrewritten to the physical disk and verified and the error is reported to theevent log.• Redundancy mismatches error—The first 10 redundancy mismatches thatare found on the virtual disk are reported to the event log.• Unfixable error—Data could not be read and parity or redundancyinformation could not be used to regenerate the data. For example,redundancy information cannot be used to reconstruct the data on adegraded virtual disk. The error is reported to the event log.For more information, see the PowerVault Modular Disk Storage Manageronline help topics.Changing Media Scan SettingsTo change the media scan settings:1 In the AMW, select the Logical tab and select any virtual disk.2 Select Virtual Disk Change Media Scan Settings.The Change Media Scan Settings window is displayed.3 Deselect Suspend media scan if selected.4 In Scan duration, enter or select the duration (in days) for the media scan.The media scan duration specifies the number of days for which the mediascan runs on the selected virtual disks.5 To disable media scans on an individual virtual disk, select the virtual diskin the Select virtual disks to scan area, and deselect Scan selected virtualdisks.6 To enable media scans on an individual virtual disk, select the virtual diskin the Select virtual disks to scan area, and select Scan selected virtualdisks.7 To enable or disable the consistency check, select either With consistencycheck or Without consistency check.NOTE: A consistency check scans the data blocks in a RAID level 5 virtualdisk, or a RAID level 6 virtual disk and checks the consistency information foreach block. A consistency check compares data blocks on RAID level 1mirrored physical disks. RAID level 0 virtual disks have no data consistency.
