Administrator Guide

NOTE: You must export a disk group before you move the disk group or import the disk group.
Importing a disk group
NOTE: You must insert all of the physical disks that are part of the disk group into the enclosure before the disk group
can be imported.
The following settings are removed/cleared during the procedure:
• Persistent reservations
• Host-to-virtual disk mappings
• Virtual disk copy pairs
• Snapshot virtual disks and snapshot repository virtual disks
• Remote replicate pairs
• Replication repositories
On the target storage array:
1. Insert the exported physical disks into the available physical disk slots.
2. Review the Import Report for an overview of the disk group that you are importing.
3. Check for non-importable components.
4. Confirm that you want to proceed with the import procedure.
NOTE: Some settings cannot be imported during the import disk group procedure.
Non-importable components
Some components cannot be imported during the import disk group procedure. These components are removed during the procedure:
• Persistent reservations
• Mappings
• Virtual disk copy pairs
• Snapshot virtual disks and snapshot repository virtual disks
Storage array media scan
The media scan is a background operation that examines virtual disks to verify that data is accessible. The process finds media errors
before normal read and write activity is disrupted and reports errors to the event log.
NOTE: You cannot enable background media scans on a virtual disk comprised of Solid State Disks (SSDs).
Errors discovered by the media scan include:
• Unrecovered media error — Data could not be read on the first attempt or on any subsequent attempts. For virtual disks with
consistency protection, data is reconstructed, rewritten to the physical disk, and verified and the error is reported to the event log. For
virtual disks without consistency protection (RAID 1, RAID 5, and RAID 6 virtual disks), the error is not corrected but is reported to the
event log.
• 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.
• Consistency mismatches error — The first 10 consistency mismatches that are found on the virtual disk are reported to the event log.
• Unfixable error — Data could not be read and consistency or consistency information could not be used to regenerate the data. For
example, consistency information cannot be used to reconstruct the data on a degraded virtual disk. The error is reported to the event
log.
Changing media scan settings
To change the media scan settings:
1. In the AMW, select the Storage & Copy Services tab and select any virtual disk.
2. From the menu bar, select Storage > Virtual Disk > Change > Media Scan Settings.
The Change Media Scan Settings window is displayed.
3. Deselect Suspend media scan, if selected.
Disk groups, standard virtual disks, and thin virtual disks
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