Product manual

Galaxy G3G12 / G3G16 - Installation and Hardware Reference Manual
162 Section 5 Management with CLU
• OK – This is the normal state of a logical drive. When a logical drive is Functional, it is ready for
immediate use. For RAID Levels other than RAID 0 (Striping), the logical drive has full redundancy.
• Synchronizing – This condition is temporary. Synchronizing is a maintenance function that verifies the
integrity of data and redundancy in the logical drive. When a logical drive is Synchronizing, it will
function and your data is available. However, access will be slower due to the synchronizing operation.
• Critical/Degraded – This condition arises as the result of a physical drive failure. A degraded logical
drive will still function and your data is still available. However, the logical drive has lost redundancy
(fault tolerance). You must determine the cause of the problem and correct it.
• Rebuilding – This condition is temporary. When a physical drive has been replaced, the logical drive
automatically begins rebuilding in order to restore redundancy (fault tolerance). When a logical drive is
rebuilding, it will function and your data is available. However, access will be slower due to the
rebuilding operation.
• Transport Ready – After you perform a successful Prepare for Transport operation, this condition
means you can remove the physical drives of this disk array and move them to another enclosure or
different drive slots. After you relocate the physical drives, the disk array status will show OK.
Setting an Alias for a Disk Array
This function sets an alias for the disk array. To set an alias:
1. From the Main Menu, highlight Disk Array Management and press Enter.
2. Highlight the disk array you want and press Enter.
3. To set an alias for this disk array, highlight Alias and type an alias into the field. Maximum of 32
characters. Use letters, numbers, space between words and underscore. An alias is optional.
4. Press Ctrl-A to save your settings.
Accepting an Incomplete Array
This condition is the result of a missing physical drive. See “Incomplete Array” in chapter 7. before you use
this function.
To accept an incomplete array:
1. From the Main Menu, highlight Disk Array Management and press Enter.
2. Highlight the disk array you want and press Enter.
3. Highlight Accept Incomplete Array and press Enter.
Enabling Media Patrol on a Disk Array
Media Patrol checks the magnetic media on physical drives.
To run Media Patrol on a disk array:
1. From the Main Menu, highlight Disk Array Management and press Enter.
2. Highlight the disk array you want and press Enter.
3. Highlight Media Patrol and press the spacebar to toggle between Enable and Disable.
4. Press Ctrl-A to save your settings.
Enabling PDM on a Disk Array
This function enables and disables Predictive Data Migration (PDM).
To enable or disable PDM:
1. From the Main Menu, highlight Disk Array Management and press Enter.
2. Highlight the disk array you want and press Enter.
3. Highlight PDM and press the spacebar to toggle between Enable and Disable.
4. Press Ctrl-A to save your settings.
See Running PDM below.