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From: Zdenek Kabelac <zkabelac@redhat.com>
To: LVM general discussion and development <linux-lvm@redhat.com>
Cc: Micky <mickylmartin@gmail.com>
Subject: Re: [linux-lvm] Very slow i/o after snapshotting
Date: Tue, 09 Jul 2013 11:54:48 +0200	[thread overview]
Message-ID: <51DBDDE8.3010206@redhat.com> (raw)
In-Reply-To: <CAKAA-nmORsWxeOX1O0Hnv6nFx_1nM41CUULk15biAfuderXmGg@mail.gmail.com>

Dne 9.7.2013 03:37, Micky napsal(a):
> On a machine, where weekly snapshots are created for dumping raw data,
> the overall disk i/o has drastically degraded to few megabytes per
> second. It is quite random and so slow that commands freeze often.
>
> I was using chunk size of 512K and same byte size with dd.
>
> Is it quite common; I read that such freezes require a reboot. Is
> there a way to avert?
> What am I missing here?

Is this supposed to be a bug report ?

I need crystal ball first ;)

So far I've no idea about disks/tables in use, system/kernel in use, lvm 
version in use....

Zdenek

  parent reply	other threads:[~2013-07-09  9:54 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-09  1:37 [linux-lvm] Very slow i/o after snapshotting Micky
2013-07-09  5:01 ` Marian Csontos
2013-07-09  8:26   ` Micky
2013-07-09  9:54 ` Zdenek Kabelac [this message]
2013-07-09 11:51   ` Micky
2013-07-09 12:19     ` Marian Csontos
2013-07-09 12:43       ` Micky
2013-07-09 13:20         ` Zdenek Kabelac
2013-07-09 14:04           ` Micky
2013-07-09 14:18             ` Zdenek Kabelac
2013-07-09 14:57               ` Micky
2013-07-09 15:14                 ` Zdenek Kabelac
2013-07-09 15:26                   ` Micky
2013-07-09 15:26                 ` Marian Csontos
2013-07-09 15:35                   ` Micky
2013-07-09 15:39                     ` Micky
2013-07-09 18:47                       ` Zdenek Kabelac
2013-07-09 23:15                         ` Micky
2013-07-09 23:29                           ` Micky
2013-07-09 17:59           ` matthew patton
2013-07-09 18:42             ` Zdenek Kabelac

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