Can I migrate Linux RAID1 to RAID5?

[jack at coats.org (Jack Coats)]

I am interested to hear if there is a different opinion, but I don't think
you can convert any of the normal file systems to RAID5 without a rebuild of
your array, then putting a file system on top of it. ... I hope I am wrong!
So lets hear from someone that tells us how!

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-----Original Message-----
From: discuss-bounces at blu.org [mailto:discuss-bounces at blu.org] On Behalf Of
christoph at linuxsoup.com
Sent: Saturday, January 08, 2005 8:53 AM
To: discuss at blu.org
Subject: Can I migrate Linux RAID1 to RAID5?



Hi eveyone,

I've got some time on my hands today (expecting 4-8 
inches of snow), so I thought I'd play with my RAID config.

Does anyone know if the Linux RAID tools porvide a mechanism
to migrate an existing RAID1 (mirror) to a RAID5?  I
bought anther disk and would like to add it without
requiring a reboot.

Also, are there any technical show stoppers to putting
the root partition/filesystem on a multi disk RAID5?
I can think of a couple "best practice" reasons not to,
but this is a home machine... so those don't really apply.

Thanks

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