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Is my RAID Virtual Disk Redundant?

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Hi,

I'm working on replacing a failing drive in an MD1000 RAID connected via PERC 6/E.

I'm unsure about some terminology in the Server Administrator Storage Management User’s Guide.

It refers often to a 'Redundant Virtual Disk', e.g.

"Replacing a Failed Disk

You may need to replace a failed disk in the following situations:

  • Replacing a Failed Disk that is Part of a Redundant Virtual Disk

  • Replacing a Failed Physical Disk that is Part of a Non-Redundant Virtual Disk "

Does 'Redundant Virtual Disk" simply mean a virtual disk using a RAID configuration that has parity? My configuration is RAID-50. If so, then this is a redundant virtual disk, right? So I can follow instructions meant for a redundant virtual disk?

Thanks,

Michael

Verified Answer
  • "Does 'Redundant Virtual Disk" simply mean a virtual disk using a RAID configuration that has parity?"

    RAID 0 is NOT redundant; all other levels (1/5/6/10/50/60) are redundant.  Not all RAID configurations use parity.  RAID 1/10 do not use parity - they use mirroring.

All Replies
  • "Does 'Redundant Virtual Disk" simply mean a virtual disk using a RAID configuration that has parity?"

    RAID 0 is NOT redundant; all other levels (1/5/6/10/50/60) are redundant.  Not all RAID configurations use parity.  RAID 1/10 do not use parity - they use mirroring.

  • Yes thanks, that makes sense. Redundancy through either parity or mirroring.

    So my raid-50 config is considered redundant and I can follow the related instructions.