From: Roman Mamedov <rm@romanrm.ru>
To: "Ask Bjørn Hansen" <ask@develooper.com>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: btrfs "stuck" on
Date: Sat, 23 Mar 2013 00:12:01 +0600 [thread overview]
Message-ID: <20130323001201.2bbbb817@natsu> (raw)
In-Reply-To: <36071CA2-8A29-4526-8523-7EB40F1C86A6@develooper.com>
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On Thu, 21 Mar 2013 11:56:37 -0700
Ask Bjørn Hansen <ask@develooper.com> wrote:
> Hello,
>
> A few weeks ago I replaced a ZFS backup system with one backed by btrfs. A script loops over a bunch of hosts rsyncing them to each their own subvolume. After each rsync I snapshot the "host-specific" subvolume.
>
> The "disk" is an iscsi disk that in my benchmarks performs roughly like a local raid with 2-3 SATA disks.
I think you should re-verify if this is still the case. Maybe your block
device performance suddenly plummeted for some other unrelated issue?
The simplest test would be "hdparm -t /dev/sdc".
Personally I use btrfs on top of an MD raid accessed over network via NBD (and
AoE before), without any major issues. Though my workload is perhaps somewhat
lighter than what you describe.
--
With respect,
Roman
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next prev parent reply other threads:[~2013-03-22 18:12 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-21 18:56 btrfs "stuck" on Ask Bjørn Hansen
2013-03-22 17:37 ` Mitch Harder
2013-03-24 8:09 ` Ask Bjørn Hansen
2013-03-22 18:12 ` Roman Mamedov [this message]
2013-03-24 8:07 ` Ask Bjørn Hansen
2013-03-29 17:12 ` David Sterba
2013-04-02 15:45 ` Alex Lyakas
-- strict thread matches above, loose matches on Subject: below --
2013-03-27 6:03 Mike Dilger
2013-03-29 17:23 ` David Sterba
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