User manual

Chapter 5: Management with WebPAM PRO
133
Managing Logical Drives
Logical drives are made from disk arrays. In the Tree, you can see a graphic
representation of the logical drives that belong to each array. You can see a
summary of all logical drives in the subsystem under Logical Drive Summary.
Logical drive management includes the following functions:
• Viewing Information for All Logical Drives (page 133)
• Locating a Logical Drive (page 134)
• Viewing Logical Drive Information (page 134)
• Changing Logical Drive Settings (page 135)
• Initializing a Logical Drive (page 135)
• Running Redundancy Check (page 136)
Viewing Information for All Logical Drives
To view information about all logical drives in a disk array:
1. Click the Subsystem icon in Tree View.
2. Click the Disk Arrays icon.
3. Click the Disk Array icon.
4. Click the Logical Drives icon
Logical Drive Status
• OK – This is the normal state of a logical drive. When a logical drive is OK, it
is ready for immediate use. For RAID Levels other than RAID 0 (Striping),
the logical drive has fault tolerance.
• Critical – This condition arises as the result of a physical drive failure. Or,
one of the physical drives was accidently or intentionally disconnected or
pulled from its enclosure. A critical or degraded logical drive will still function
and your data is still available. However, the logical drive has lost its fault
tolerance.
• Offline – This condition arises as the result of multiple physical drive
failures. Or, multiple physical drives were accidently or intentionally
disconnected or pulled from its enclosure. An offline logical drive does not
function and your data is not available.
To create a logical drive, see “Creating a Logical Drive” on page 128.
To delete a logical drive, see “Deleting a Logical Drive” on page 129.
For a Critical or Offline logical drive, see “Critical & Offline Logical Drives” on
page 180.