RAID 5 from 2.4.24 to 2.6.0

RAID 5 from 2.4.24 to 2.6.0

[Martin F Krafft]

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Due to stability problems with the RAID code in 2.4 (detaailed
message forthcoming), I would like to try 2.6.0 on one of our
servers. However, anticipating problems, I want to make sure that
this change is not irreversible.

Can I mount RAID 1 and 5 partitions in 2.6.0 and 2.4.24
interchangeably?

Thanks,

-- 
Martin F. Krafft                Artificial Intelligence Laboratory
Ph.D. Student                   Department of Information Technology
Email: krafft@ailab.ch          University of Zurich
Tel: +41.(0)1.63-54323          Andreasstrasse 15, Office 2.20
http://ailab.ch/people/krafft   CH-8050 Zurich, Switzerland
 
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Re: RAID 5 from 2.4.24 to 2.6.0

[Mike Fedyk]

On Thu, Jan 08, 2004 at 04:14:47PM +0100, Martin F Krafft wrote:
> Due to stability problems with the RAID code in 2.4 (detaailed
> message forthcoming), I would like to try 2.6.0 on one of our
> servers. However, anticipating problems, I want to make sure that
> this change is not irreversible.
> 
> Can I mount RAID 1 and 5 partitions in 2.6.0 and 2.4.24
> interchangeably?

Yes, you can.

Though since the 2.4 raid code is quite fragile in states not possible from
2.4 code, I found one problem a while back where 2.6-test would set the state
bits wrong.  The problem was fixed though.

You can use 2.6 and 2.4 raid interchangably, but don't scrimp on persuing
the problem from a 2.4 perspective.