Pegasus3 Product Manual

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TroubleshootingPegasus3 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