Thanks Brandon, that makes sense. For a masterbackend server that
will probably have at most 2 clients, I don't get the feeling that
striping the drives is necessary from a performance standpoint.
I'm still trying to decide how to tackle the redundancy/backup
issue. I'm wondering if doing this via RAID is
overkill.... Rather than introduce that complication maybe I
should just manually back the drives up every so often. <br><br><div><span class="gmail_quote">On 10/17/05, <b class="gmail_sendername">Brandon Beattie</b> <<a href="mailto:brandon+myth@linuxis.us">brandon+myth@linuxis.us
</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">On Fri, Oct 14, 2005 at 03:45:16PM -0500, Alex Brekken wrote:<br>> If one wanted redundancy only (is that RAID-0??) then I take it you would
<br>> skip LVM entirely, correct? - IOW, are the 2 mutually exclusive or can you<br>> use LVM with RAID? The reason I ask is because I'm starting to put together<br>> some plans to build a master backend server (currently I have a
<br>> frontend/backend combo) which will not only house myth and it's recordings,<br>> but also all of my music and pictures/videos of the kids. (the latter of<br>> which I would want the redundancy in case of a drive failure).
<br><br>Raid 0 is striping for performance but no redundancy. Any other raid<br>level (2,3,4,5,10) does redundancy. LVM basically gives you virtual<br>partitions on top of anything that's set as an LVM partition type via
<br>fdisk. Some people use LVM ontop of raid. Someone may do raid 5 for<br>redunancy and use LVM on top to allow them to shrink and grow virtual<br>partitions as they want to move space around for mount points, but still
<br>have redunancy (Since LVM doesn't do redundancy). The only thing like<br>raid LVM does is striping - but you can't resize a striped LVM partion,<br>so LVM striping and Raid 0 are somewhat alike.<br><br>--Brandon<br><br>
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