<div class="gmail_quote">On Wed, Jul 18, 2012 at 8:55 PM, James Booth <span dir="ltr"><<a href="mailto:james@booths.net.nz" target="_blank">james@booths.net.nz</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div style="font-family:'Verdana';font-size:9pt;font-weight:400;font-style:normal"><p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">I run 2 x RAID1 (4 disks total) using software RAID. System disk is separate again. </p>
</div></blockquote><div><br>Any reason why you chose that setup over software RAID10? RAID10 would give you the same level of redundancy with better performance.<br> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div style="font-family:'Verdana';font-size:9pt;font-weight:400;font-style:normal"><p style="margin:0px;text-indent:0px">Definitely worth doing RAID, but I should probably have gone for RAID5 as it would be much easier to add capacity.</p>
</div></blockquote><div><br>If the drives are all the same size then it wouldn't be that hard to change over for you. Take a drive out of each RAID1. Use those 2 drives to create a degraded RAID5. Copy the data from one of the original RAID1 arrays to the RAID5. Destroy that RAID1 and add the drive to the RAID5. Copy the data from the other RAID1 (you don't need to wait for the RAID5 to rebuild). Reshape the RAID5 to add the last drive. You'd be running the risk of losing half your data to a single drive failure while the RAID5 is degraded.<br>
<br>Switching to RAID5 would give you extra capacity equal to the size of the smallest disk so if there is a big difference in the size of the drives then it might not be worth the effort.<br><br>Cheers,<br>Steve<br></div>
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