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TroubleshootingPegasus R4i Product Manual

Disk Array Oine / Logical Drive Oine

Disk arrays are made up of physical drives. Logical drives are created on the disk array. When a disk

array and its logical drives go Ofine, the data stored in the logical drives is no longer accessible.

RAID 0 logical drives go Ofinewhen ONE physical drive is removed or fails. RAID 1, 1E, 5, and 10

logical drives go Ofinewhen TWO physical drives are removed or fail.

RAID 6 logical drives go Ofinewhen THREE physical drives are removed or fail.

The Pegasus Utility reports these conditions in the following places:

• Dashboard icon – A red X icon appears beside the disk arrays, logical drives, and physical

drives under System Status.

• Physical Driveicon–PhysicaldrivesareshownDead,Ofine,orMissing.

• Logical Drive icon – Disk Array and Logical Drives are marked with a red X icon.

• Event icon – Major event for the logical drive and a Warning event for the physical drive. Under

Background Activities, no Rebuild takes place. See Repairing, below.

Repairing an Oine Disk Array or Logical Drive

RAID 1, 1E, 5, 6, and 10 Logical Drives

If a fault-tolerant logical drive, RAID 1, 1E, 5, 6, and 10, goes Ofine, it may be possible to recover your

data.

RAID 0 Logical Drives

Ifalogicaldrivebasedonanon-fault-tolerantdiskarray,RAID0,goesofine,allofthedataonthe

logical drive is lost.

WARNINGWARNING

Promise Technology Pegasus R4i User Manual

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