Product manual

Chapter 4: Management with WebPAM PROe
167
Managing Logical Drives
Logical drive management includes:
• Viewing Information for All Logical Drives (below)
• Viewing Logical Drive Information (page 168)
• Viewing Logical Drive Statistics (page 169)
• Making Logical Drive Settings (page 169)
• Initializing a Logical Drive (page 170)
• Running Redundancy Check (page 170)
• Viewing the Logical Drive Check Table (page 171)
• Making Logical Drive LUN Settings (page 172)
• Creating a LUN Clone (page 173)
To create or delete a logical drive, see “Managing Disk Arrays” on page 153.
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 – The normal state of a logical drive. For RAID Levels other than RAID 0
(Striping), the logical drive has full redundancy.
• Synchronizing – When you first create a logical drive, the logical drive
synchronizes. During that time, your data is available. However, access will
be slower until synchronizing is done.
• 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). Your data is still available. However, access will
be slower until rebuilding is done.
• Critical – This condition results from a physical drive failure. 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. See “Critical &
Offline Disk Arrays” on page 394.
• Offline – This condition arises as the result of a second physical drive
failure. An Offline logical drive is not accessible but some or all of your data