From: Roberto Spadim <roberto@spadim.com.br>
To: Zdenek Kaspar <zkaspar82@gmail.com>
Cc: Richard Grundy <richguk@gmail.com>, linux-raid@vger.kernel.org
Subject: Re: mdadm raid5 with lvm: advantages?
Date: Tue, 11 Jan 2011 16:40:18 -0200 [thread overview]
Message-ID: <AANLkTi=WhBaw23oo8-0n5MyC9AY6_DS_piEBmo+bDeDJ@mail.gmail.com> (raw)
In-Reply-To: <4D2CA32E.3030303@gmail.com>
like email subject tell: advantages?
lvm suport - snapshots
2011/1/11 Zdenek Kaspar <zkaspar82@gmail.com>:
> Dne 11.1.2011 15:06, Richard Grundy napsal(a):
>> Hi,
>>
>> I'm building a new RAID5 array (of 5 1.5 TB drives) with mdadm and
>> would like to know the benefits of creating an LVM on top of this are
>> instead of just creating the filesystem on the md directly. I've never
>> had a problem growing the array and then resizing the filesystem
>> before and wondered if in this situation the only gain would be lvm
>> snapshot stuff? I'm planning to use ext4 for this array, if that makes
>> any difference.
>>
>> Thanks in advanced,
>>
>> Rich
>> --
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>
> Really depends on your needs..
>
> It makes sense to use LVM for virtualization and iSCSI to get rid of big
> file images (unwanted fs overhead/fragmentation). But yes, in some use
> cases this is OK.
>
> If you don't need snapshots or whatever LVM feature, then go the
> simplest way - no LVM.
>
> HTH, Z.
> --
> To unsubscribe from this list: send the line "unsubscribe linux-raid" in
> the body of a message to majordomo@vger.kernel.org
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>
--
Roberto Spadim
Spadim Technology / SPAEmpresarial
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next prev parent reply other threads:[~2011-01-11 18:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-11 14:06 mdadm raid5 with lvm: advantages? Richard Grundy
2011-01-11 14:10 ` Steven Haigh
2011-01-11 14:13 ` Richard Grundy
2011-01-11 14:16 ` Jan Kasprzak
2011-01-11 16:30 ` CoolCold
2011-01-11 18:36 ` Zdenek Kaspar
2011-01-11 18:40 ` Roberto Spadim [this message]
2011-01-11 18:49 ` Roman Mamedov
2011-01-11 18:58 ` Roy Keene
2011-01-11 19:11 ` Zdenek Kaspar
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