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LenelS2 EVA 54 User Manual
• Number of Logical Drives
• Available RAID Levels
Other lists in this menu:
• Physical Drives in the Disk Array
• Logical Drives in the Disk Array
• Available Spare Drives to the Disk Array
Disk Array Operational Status
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, 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.
Logical drive management
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. The Logical Drive List
can be accessed in Tree View by expanding the under Disk Arrays and clicking on
the Logical Drives icon for any existing disk array, or simply click on the Logical Drive
Summary icon for the Subsystem.
Click on any Logical Drive (LD) in the list to view Information and Statistics, to
change Settings (Alias, Read Policy, Write Policy), to start Background Activities
(Initialization, Redundancy Check), or to view the Check Table for the LD.
Information displayed in the menu includes:
• Logical Drive ID
• Alias
• Raid Level
• Operational Status
• Capacity
• Physical Capacity
• Number of Axles [#]
• Number of Used Physical Drives [#]
• Stripe Size