On 1/8/06, <b class="gmail_sendername">Joe Votour</b> <<a href="mailto:joevph@yahoo.com">joevph@yahoo.com</a>> wrote:<div><span class="gmail_quote"></span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>--- Steve Adeff <<a href="mailto:adeffs@gmail.com">adeffs@gmail.com</a>> wrote:<br><br>> On Sunday 08 January 2006 15:14, Joe Votour wrote:<br>> > --- Steve Adeff <<a href="mailto:adeffs@gmail.com">adeffs@gmail.com
</a>> wrote:<br>> > > So you use the raid controller but use mdadm to<br>> > > handle the RAID array?<br>> ><br>> > What you do is use the ports in non-RAID mode<br>> (i.e.<br>> > make them all regular SATA ports) and use mdadm to
<br>> > create and manage the RAID array.<br>> ><br>> > -- Joe<br>><br>> gotcha, sounds like a plan for me. One final<br>> question, all the examples for<br>> RAID 1 in mdadm shows only 2 drives in the array, is
<br>> it possible to use 3 or<br>> more? and if so, can I add the additional drives<br>> later as needed?<br>><br>> --<br>> thanks!<br>> Steve<br>> _______________________________________________<br>
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</a><br>><br><br>As far as I know, RAID-1 is meant for two drives<br>(mirror) only. I don't see why you couldn't add an<br>extra drive as a hot spare, to put into the mirror<br>when one drive dies.<br><br>If you have three (or more) drives, then I recommend
<br>RAID-5 instead, though with four drives, you could do<br>a RAID-0+1 (I think that's what they call it -<br>basically a stripe that is then mirrored.)<br><br>As for adding drives, I'm not really sure. I have a<br>four drive RAID-5, and I'm not really sure how I'd add
<br>another drive into the array - then again, I don't<br>have any more room in the hacked up SCSI drive case<br>and the Epia is out of IDE ports. I know that you can<br>add them as hot spares, but I'm not sure about into
<br>the array themselves.<br><br>Sorry this doesn't help much, perhaps somebody who is<br>more knowledgeable about RAID and using it within<br>MythTV (as opposed to just using it for a Samba file<br>server) can give more pointees.
<br><br>-- Joe<br><br><br><br>__________________________________________<br>Yahoo! DSL – Something to write home about.<br>Just $16.99/mo. or less.<br><a href="http://dsl.yahoo.com">dsl.yahoo.com</a><br><br>_______________________________________________
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</a><br></blockquote></div><br>Agreed. Don't recall how many drives you have, but if it's three plus and they're the same size (I think you said they were), I'd go for RAID 5. I know you said data loss wasn't an issue and if that's really true, then 0 is fine. Obviously 5 gives you everything that 0 does but with a trade-off of n-1 space for some fault tolerance.
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