142 Configuration: Disk Groups and Virtual Disks
• Recovered media error—Data could not be read by the physical disk on the
first attempt but was successfully read on a subsequent attempt. Data is
rewritten to the physical disk and verified and the error is reported to the
event log.
• Redundancy mismatches error—The first 10 redundancy mismatches that
are found on the virtual disk are reported to the event log.
• Unfixable error—Data could not be read and parity or redundancy
information could not be used to regenerate the data. For example,
redundancy information cannot be used to reconstruct the data on a
degraded virtual disk. The error is reported to the event log.
For more information, see the PowerVault Modular Disk Storage Manager
online help topics.

Changing Media Scan Settings

To 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 media
scan runs on the selected virtual disks.
5
To disable media scans on an individual virtual disk, select the virtual disk
in the
Select virtual disks to scan
area, and deselect
Scan selected virtual
disks
.
6
To enable media scans on an individual virtual disk, select the virtual disk
in the
Select virtual disks to scan
area, and select S
can selected virtual
disks
.
7
To enable or disable the consistency check, select either
With consistency
check
or
Without consistency check
.
NOTE: A consistency check scans the data blocks in a RAID Level 5 virtual
disk, or a RAID Level 6 virtual disk and checks the consistency information for
each block. A consistency check compares data blocks on RAID Level 1
mirrored physical disks. RAID Level 0 virtual disks have no data consistency.
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