linux-raid.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Gandalf Corvotempesta <gandalf.corvotempesta@gmail.com>
To: "General discussion - ask questions,
	receive answers and advice from other ZFS users"
	<zfs-discuss@list.zfsonlinux.org>,
	Linux RAID Mailing List <linux-raid@vger.kernel.org>
Subject: Fwd: [OT][X-POST] RAID-6 hw rebuild speed
Date: Tue, 1 Dec 2020 10:57:28 +0100	[thread overview]
Message-ID: <CAJH6TXgED_UGRcLNVU+-1p8BVMapJkRmvZMndLYAKjX_j6f7iw@mail.gmail.com> (raw)
In-Reply-To: <CAJH6TXjsg+OE5rUpK+RqeFJRxBiZJ94ToOdUD5ajjwXzYft9Vw@mail.gmail.com>

Sorry for the OT and X-POST but these 2 lists are full of skilled
storage engineer.
For a very,very,very,very long time I used 15k SAS 3.5'' disks. A
RAID-6 hardware (8 disks) took about 20 hours to rebuild.

Now I've replaced a 3.5 disks with a 15k SAS 2.5'' disk. raid is
rebuilding properly, but the ETA is less then 1 hours.

I've moved from a 20 hours rebuild to about 50 minutes rebuild, by
just changing one 3.5' disks with a 2.5'

Is this normal ? I'm thinking something strange is happening

       reply	other threads:[~2020-12-01  9:58 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CAJH6TXjsg+OE5rUpK+RqeFJRxBiZJ94ToOdUD5ajjwXzYft9Vw@mail.gmail.com>
2020-12-01  9:57 ` Gandalf Corvotempesta [this message]
     [not found]   ` <CAJ1=CigDVO9-2uSBw8Fbv-86y8G6XOFM2CjRs1yURAczgB6ydA@mail.gmail.com>
2020-12-01 11:28     ` [zfs-discuss] Fwd: [OT][X-POST] RAID-6 hw rebuild speed Gandalf Corvotempesta
2020-12-01 11:34   ` Wols Lists
2020-12-01 13:01     ` Roger Heflin
2020-12-01 17:15       ` Gandalf Corvotempesta
2020-12-02  1:21         ` Roger Heflin
2021-02-26 14:04     ` [zfs-discuss] " rob_mailing_lists&rbabb net

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=CAJH6TXgED_UGRcLNVU+-1p8BVMapJkRmvZMndLYAKjX_j6f7iw@mail.gmail.com \
    --to=gandalf.corvotempesta@gmail.com \
    --cc=linux-raid@vger.kernel.org \
    --cc=zfs-discuss@list.zfsonlinux.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;
as well as URLs for NNTP newsgroup(s).