[Gllug] Recommendations for servers

Philip Hands phil at hands.com
Thu Nov 25 23:34:16 UTC 2010


On Thu, 25 Nov 2010 22:12:30 +0000, Karanbir Singh <mail-lists at karan.org> wrote:
> On 25/11/2010 21:45, Dagfinn Ilmari Mannsåker wrote:
> >> md can grow RAID-1 to RAID-5 anyway, so they're completely identical.
> > Can it?  My mdadm(8) (v2.6.7.1) says:
> > 
> 
> iirc, it was in late 2009 that mdadm gained the ability to reshape in
> this manner. -devel code has been around for a bit longer. yes, its
> new :)

While people are talking about converting RAID1 into RAID5, I thought
I'd point at this:

  http://www.baarf.com/
and in particular:
  http://www.miracleas.com/BAARF/RAID5_versus_RAID10.txt

which I find reasonably persuasive -- in these days of cheap disk (I
just added a couple more 2TB disks that will be another RAID1 to my
server today, for about £220)

Cheers, Phil.
-- 
|)|  Philip Hands [+44 (0)20 8530 9560]    http://www.hands.com/
|-|  HANDS.COM Ltd.                    http://www.uk.debian.org/
|(|  10 Onslow Gardens, South Woodford, London  E18 1NE  ENGLAND
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