vinum is not stable under 5.4. After some "research" I found gmirror (RAID1) is ok. There are some notes on:
http://www.freebsd.org/releases/5.3R/errata.html
Cheers,
Vladimir.
On Thu, 21 Apr 2005, Paul Mather wrote:
On Thu, 2005-04-21 at 10:39 +0200, Claus Guttesen wrote:Hi.
I may implement (g)vinum to stripe two 2 TB raid 5 volumes into a single 4 TB vinum-volume. The volumes reside on a atabeast doing the raid 5. The server is a 5.4 RC2 doing nfs on i386.
According to some threads gvinum may not be completely stable (in 5.3, http://unix.derkeiler.com/Mailing-Lists/FreeBSD/current/2004-11/0537.html) when doing raid 5 but works fine when striping.
Should I go vinum or gvinum? Will newfs have problems with a 4 TB volume? Are there any performance-degradation doing striping?
In addition to vinum and gvinum, have you considered geom_stripe? See gstripe(8) for details. I've been using it for a while on 5-STABLE to join two 65 GB slices on two different drives into a single 130 GB device (/dev/stripe/data in my case). I have had no stability problems, which is why I mention this as a possible solution for you if you're worried about the stability of vinum or gvinum in 5.x.
Cheers,
Paul. -- e-mail: [EMAIL PROTECTED]
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