On Tue, Jan 11, 2011 at 5:16 PM, Jan Kasprzak <kas@xxxxxxxxxx> wrote:
> Richard Grundy wrote:
> : 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.
>
> The disadvantage of lvm over md is that with LV filesystems
> usually cannot see the physical layout and determine the correct
> level of parallelism (like swidth in XFS, stripe in ext4).
XFS (xfsprogs) does this without any problems (for me at least)
>
> -Yenya
>
> --
> | Jan "Yenya" Kasprzak <kas at {fi.muni.cz - work | yenya.net - private}> |
> | GPG: ID 1024/D3498839 Fingerprint 0D99A7FB206605D7 8B35FCDE05B18A5E |
> | http://www.fi.muni.cz/~kas/ Journal: http://www.fi.muni.cz/~kas/blog/ |
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--
Best regards,
[COOLCOLD-RIPN]
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