how to create raid 5 from a mirror set

April 1, 2011 at 19:09:47
Specs: Windows Server 2008
Also need to expand OS Partition which is 24GB to at least double that size

See More: how to create raid 5 from a mirror set

Report •


#1
April 2, 2011 at 01:00:57
It depends upon your hardware (and if you are using hardware RAID), but it may be that you will have to back up your existing system, destroy the mirror set, create a RAID 5 volume and then reinstall. I'm not sure that direct conversion from one RAID level to another is always possible.

Report •

#2
April 4, 2011 at 06:54:27
BearLatvia is this data or data and OS on the raid1?

I have never seen a raid controller that could change from one raid level to another.
What raid controller do you have BearLatvia?

Answers are only as good as the information you provide.
How to properly post a question:
Sorry no tech support via PM's


Report •

#3
April 4, 2011 at 07:36:17
IBM ServeRAID devices have this ability (with certain limitations), but it normally involves adding an additional physical drive. They certainly allow you to change RAID 0 or 1 to RAID 5. IBM RAID controllers are very versatile.

Report •

Related Solutions

#4
April 4, 2011 at 11:03:40
IBM doesn't support raid changes on intergrated/host raid controllers.
Some raid level conversions are not available for migration.
I have worked with IBM servers and their raid arrays.
Always did it the old fashioned way of backup, reinitialize the raid array, install and restore.

Have you ever successfully migrated a logical drive containing the OS from one raid level to another?

BearLatvia what raid hardware do you have?

Answers are only as good as the information you provide.
How to properly post a question:
Sorry no tech support via PM's


Report •

#5
April 4, 2011 at 11:24:25
You'r right that it doesn't work with the integrated controller. Details here: http://publib.boulder.ibm.com/infoc...

Yeah - I've worked with quite a few IBM RAID adapters over the years. I honestly can't remember if I ever did this in practice (I doubt that I ever had the need), but I've certainly done a few trick things in situ - upping the size of the arrays without recreating them, that sort of thing. If IBM say it can be done I have no reason to doubt them.


Report •

Ask Question