From: Can Jeuleers <can.jeuleers@gmail.com>
To: linux-raid@vger.kernel.org
Subject: Re: Resurrecting a Dirty RAID-5
Date: Mon, 13 Jul 2015 08:31:39 +0200 [thread overview]
Message-ID: <55A35B4B.9020706@gmail.com> (raw)
In-Reply-To: <55A2EB25.10607@websitemanagers.com.au>
On 13/07/15 00:33, Adam Goryachev wrote:
> Also, for your raid1, never have a hot spare, just do this:
> mdadm /dev/mdX --grow --raid-devices=3
> Then you will always have all your data replicated on all three drives,
> so again, no hot spare required.
Never say never, as there are valid use cases for having hot spares in a
RAID1 set.
My own use case is that I want to be reasonably assured that my spare
won't fail at around the same time as the active disks (due to having
the same age and having been subjected to exactly the same workload).
next prev parent reply other threads:[~2015-07-13 6:31 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-08 12:14 Resurrecting a Dirty RAID-5 jtroan
2015-07-08 13:19 ` Phil Turmel
2015-07-09 2:57 ` jtroan
2015-07-12 5:57 ` Mikael Abrahamsson
2015-07-12 15:01 ` jtroan
2015-07-12 22:33 ` Adam Goryachev
2015-07-13 6:31 ` Can Jeuleers [this message]
2015-07-13 7:15 ` Adam Goryachev
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=55A35B4B.9020706@gmail.com \
--to=can.jeuleers@gmail.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.