Linux RAID subsystem development
 help / color / mirror / Atom feed
From: Roy Sigurd Karlsbakk <roy@karlsbakk.net>
To: Brian Candler <B.Candler@pobox.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: Interpreting mdstat output
Date: Tue, 5 Feb 2013 13:41:27 +0100 (CET)	[thread overview]
Message-ID: <7680572.8.1360068087105.JavaMail.root@zimbra> (raw)
In-Reply-To: <20130205123419.GA492@nsrc.org>

----- Opprinnelig melding -----
> On Tue, Feb 05, 2013 at 01:30:41PM +0100, Roy Sigurd Karlsbakk wrote:
> > I beleive using 22 drives in a single RAID-5 is something like BASE
> > jumping with a large umbrella. You should at least use RAID-6, and
> > perhaps even split up the RAID into smaller ones.
> 
> Point taken, but this is actually a large dataset which could be
> recreated
> if necessary (i.e. it's derived from other data), and is also to be
> copied to another server.

Still, better use raid-6 + 1 spare than raid-5 + 2 spares. It will probably take a while to rebuild the data on that one in case of a double disk failure, and with that amount of drives, the chances are pretty decent.

Vennlige hilsener / Best regards

roy
--
Roy Sigurd Karlsbakk
(+47) 98013356
roy@karlsbakk.net
http://blogg.karlsbakk.net/
GPG Public key: http://karlsbakk.net/roysigurdkarlsbakk.pubkey.txt
--
I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med xenotyp etymologi. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk.
--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

  reply	other threads:[~2013-02-05 12:41 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-05 12:20 Interpreting mdstat output Brian Candler
2013-02-05 12:30 ` Roy Sigurd Karlsbakk
2013-02-05 12:34   ` Brian Candler
2013-02-05 12:41     ` Roy Sigurd Karlsbakk [this message]
2013-02-05 22:43   ` Hans-Peter Jansen
2013-02-05 13:02 ` Robin Hill
2013-02-05 13:40   ` Brian Candler
2013-02-05 13:49     ` Brian Candler
2013-02-05 13:54       ` Phil Turmel
2013-02-05 13:59       ` Robin Hill

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=7680572.8.1360068087105.JavaMail.root@zimbra \
    --to=roy@karlsbakk.net \
    --cc=B.Candler@pobox.com \
    --cc=linux-raid@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox