[CentOS] Disk Druid - control RAID partition layout?

Les Mikesell lesmikesell at gmail.com
Tue Jul 12 04:56:02 UTC 2005


On Mon, 2005-07-11 at 19:01, Greg Knaddison wrote:

> > Is it possible to partition a disk with Disk Druid and control the order
> > of the partitions?  I want to create my own boot and swap as RAID
> > partitions but Disk Druid won't keep them in the order I want, no
> > matter what I specify first. I've done this before by using fdisk
> > to make the partitions before starting Disk Druid but I thought
> > someone said this was an old bug and should have been fixed.
> > 
> 
> I don't know the answer to your question - but I know a question you
> might want to ask yourself - why am I doing this?
> 
> http://www.tldp.org/HOWTO/Software-RAID-HOWTO-2.html
> 
> Two choice quotes:
> 
> 1. There's no reason to use RAID for swap performance reasons.
> 
> 2. There has been a lot of discussion about whether swap was stable on
> RAID devices. This is a continuing debate, because it depends highly
> on other aspects of the kernel as well.

I have machines that are still running that have survived having the
drive containing one member of a mirrored swap partition replaced
(they are hot-swap SCSI's).  Odd you should mention the stability issue
though - earlier instances were uneventful but the last time it happened
several process died including crond.  I suppose I should have rebooted,
but I haven't yet.  After rebuilding and restarting a few things it has
been stable since (about a month now).  I wonder if I was just lucky the
other times or if it is no longer handled correctly in the kernel.  Does
someone think it isn't important?

-- 
  Les Mikesell
    lesmikesell at gmail.com






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