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Message-ID: <4856BC88.4060602@wpkg.org>
Date: Mon, 16 Jun 2008 21:18:32 +0200
From: Tomasz Chmielewski <mangoo@wpkg.org>
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Subject: Re: [linux-lvm] Server hangs when writing to LVM volume due to LVM
	Snapshots
References: <20080616135319.GA29234@campbell-lange.net>	<4856715A.6050107@wpkg.org>	<20080616141907.GH3765@campbell-lange.net>	<48567DF8.7080600@wpkg.org>
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To: LVM general discussion and development <linux-lvm@redhat.com>

Veselin Kantsev schrieb:

> The snapshots are 180GB each.

So that makes 7 snapshots, each is 180GB? What percentage is filled?


> The current writing process freezes and working with the LV becomes
> impossible both locally and through the network.

LVM-2 doesn't scale very well.

If you have I/O intensive workloads, I'd discourage using (multiple) 
snapshots.

A single write to the origin mean additional writes to each and every 
snapshot of that origin.


-- 
Tomasz Chmielewski
http://wpkg.org