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Question posted by enavas on July 3rd, 2015

Virtual-disk Is Not Fault Tolerant

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Answer #1: Posted by TommyKervz on July 3rd, 2015 10:36 AM

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TommyKervz

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The first thing that needs to be done, is the meta-data on the leftover disk needs to be cleared before it can re-join the RAID as either a regular disk or a dedicated spare.

Clearing Disk Meta Data

Each disk has metadata that identifies whether the disk is a member of a vdisk, and identifies other members of that vdisk. If a disk's metadata says the disk is a member of a vdisk but other members' metadata say the disk isn't a member, the disk becomes a LEFTOVER. The system overview and enclosure overview pages show the disk's How-Used value as LEFTOVR. A leftover disk's Fault/UID LED is illuminated amber.

Before you can use that disk in a new vdisk or as a spare, you must clear that disk's metadata.

To Clear meta data from LEFTOVER disks

In the Configuration View panel, right-click the system and then select Tools > Clear Disk Metadata.
In the main panel, select disks to clear metadata from.
Click Clear Metadata. When processing is complete a success dialog appears.
4. Click Ok

Re-Join Physical Disk to VDisk RAID

In the HP MSA Storage Management Utility, Right click on the affected vdisk and select Configuration > Manage Dedicated Spares
Your disk should appear in the list of available drives with a state of AVAIL. Tick the drive, then click the Modify Spares button.
The disk will be re-joined to the array. Initially it may be listed as a spare, but the MSA will automatically re-join the disk as an active member of the RAID if this is how it was originally configured.
The array will begin the Reconstruction process automatically. This can take a very long time depending on the size of your drives.
In this situation, original SPARE has now become AVAIL. So, re-add this AVAIL disk as SPARE using above steps. After setting this as spare - this disk will now show a status of: VDISKSP or SPARE

Hope that is helpful.
Kervz at www.satechhelp.co.za

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