Sun Storage[TM] 6130/6140/6180/6540/6580/6780: How to Change RAID Level for a VDisk Using CAM or the sscs CLI
(Doc ID 1011303.1)
Last updated on OCTOBER 05, 2017
Applies to:Sun Storage 6140 Array - Version Not Applicable and later
Sun Storage Common Array Manager (CAM) - Version 5.0 and later
Sun Storage 6130 Array - Version Not Applicable to Not Applicable [Release N/A]
Sun Storage 6540 Array - Version Not Applicable to Not Applicable [Release N/A]
Sun Storage 6580 Array - Version Not Applicable to Not Applicable [Release N/A]
This document provides the steps necessary to perform Dynamic RAID Migration (DRM) for a given VDisk, using Common Array Manager (CAM) or the sscs CLI (Command Line).
The requirements for this are as follows:
- There can be only one VDisk in a Pool, if you are changing the level at the pool level.
- There can only a single volume in a VDisk, if you are changing the level at the volume level.
- Migrations to a RAID 1+0 require an even number of drives.
- The volume sizes remain unchanged, so a migration from a RAID 5+1 to 3+3 would
require that the volumes can be contained within the space of 3 drives of the
original 5+1 VDisk.
If these requirements are not met, you should expand your VDisk.
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