PowerEdge T710 PERC H700 RAID level migration issue

In my new role, I inherited a number of servers managed until now by someone else.  One of them is a PowerEdge T710 with a Controller PERC H700.  There are two matrices; the other has four 3TO disks in a RAID-5 configuration.

I don't need the storage space any where near as much as the reliability factor.  Is it possible to do a migration on-site from RAID 5 to RAID-6 without disturbing data?  There is enough free space, and I have no problem losing a portion of the free space I have.

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"Is it possible to do a migration on-site from RAID 5 to RAID-6 without disturbing data?"

Yes, BUT you can use this method by ADDING another disk.  RAID 6 requires a minimum of 4 drives.  Insert a disk "to hot', then in the software OpenManage (OMSA), go into storage, PERC, virtual disks and reconfigure in the drop-down list of tasks available for RAID 5.

"There is enough free space, and I have no problem losing a portion of the free space I have."

Apart from the fact that RAID 6 requires a minimum of 4 drives, even if you want to spend a 4 drive RAID 5 has a 4-drive RAID 6, it could NOT be done.  You can't make a smaller table.  The controller doesn't know - or care - on real data of BONE on the disks (so the amount of 'free space' is not serious) and is not worried about virtual disk space (which would be filled if the total capacity of the discs has been used).

Tags: Dell Servers

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