From: Mateusz Korniak <mateusz-lists@ant.gliwice.pl>
To: John Stoffel <john@stoffel.org>
Cc: Ron Leach <ronleach@tesco.net>, linux-raid@vger.kernel.org
Subject: Re: Recovery on new 2TB disk: finish=7248.4min (raid1)
Date: Thu, 27 Apr 2017 16:54:16 +0200 [thread overview]
Message-ID: <5492628.c8B43Z4h0G@matkor-lenovo> (raw)
In-Reply-To: <22785.65375.947842.648174@quad.stoffel.home>
On Thursday 27 of April 2017 10:25:35 John Stoffel wrote:
> Ron> issued these commands one after the other:
>
> Ron> # mdadm --manage -a /dev/mdo /dev/sdb1
> Ron> # mdadm --manage -a /dev/md1 /dev/sdb2
> Ron> # mdadm --manage -a /dev/md2 /dev/sdb3
> Ron> # mdadm --manage -a /dev/md3 /dev/sdb5
> Ron> # mdadm --manage -a /dev/md4 /dev/sdb6
> Ron> # mdadm --manage -a /dev/md5 /dev/sdb7
> Ron> # mdadm --manage -a /dev/md6 /dev/sdb8
> Ron> # mdadm --manage -a /dev/md7 /dev/sdb9
>
> Ugh! You're setting yourself up for a true seek storm here, and way
> too much pain down the road, IMHO. Just mirror the entire disk and
> put LVM volumes on top.
Why having several md devices leads to "seek storm"?
They will be synced one by one, just like one big md device.
Regards,
--
Mateusz Korniak
"(...) mam brata - poważny, domator, liczykrupa, hipokryta, pobożniś,
krótko mówiąc - podpora społeczeństwa."
Nikos Kazantzakis - "Grek Zorba"
next prev parent reply other threads:[~2017-04-27 14:54 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-26 21:57 Recovery on new 2TB disk: finish=7248.4min (raid1) Ron Leach
2017-04-27 14:25 ` John Stoffel
2017-04-27 14:43 ` Reindl Harald
2017-04-28 7:05 ` Ron Leach
2017-04-27 14:54 ` Mateusz Korniak [this message]
2017-04-27 19:03 ` John Stoffel
2017-04-27 19:42 ` Reindl Harald
2017-04-28 7:30 ` Mateusz Korniak
2017-04-30 12:04 ` Nix
2017-04-30 13:21 ` Roman Mamedov
2017-04-30 16:10 ` Nix
2017-04-30 16:47 ` Roman Mamedov
2017-05-01 21:13 ` Nix
2017-05-01 21:44 ` Anthony Youngman
2017-05-01 21:46 ` Roman Mamedov
2017-05-01 21:53 ` Anthony Youngman
2017-05-01 22:03 ` Roman Mamedov
2017-05-02 6:10 ` Wols Lists
2017-05-02 10:02 ` Nix
2017-05-01 23:26 ` Nix
2017-04-30 17:16 ` Wols Lists
2017-05-01 20:12 ` Nix
2017-04-27 14:58 ` Mateusz Korniak
2017-04-27 19:01 ` Ron Leach
2017-04-28 7:06 ` Mateusz Korniak
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