On 1/1/07, <b class="gmail_sendername">Curtis Doty</b> <<a href="mailto:Curtis@greenkey.net" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">Curtis@greenkey.net</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;">
vamythguy wrote:<br>> I have a RAID-5 array with four SATA disks in it. Apparently, two are<br>> going<br>> bad, so I want to replace them. But, I'm not sure which physical<br>> drives to<br>> pull. Given the following:
<br>><br>> cat /proc/mdstat<br>> Personalities : [raid6] [raid5] [raid4]<br>> md0 : active raid5 sda[0] sdd[3] sdc[2] sdb[1]<br>> 735351936 blocks level 5, 64k chunk, algorithm 2 [4/4] [UUUU]<br>><br>
> Any suggestions?<br><br>Odd that you have the raid4 and raid6 modules loaded, but still<br>unfamiliar with /proc/mdstat...<br><br>Anyways, you are showing an array with four working disks; none failed.<br>If you had a failed drive, it might look like [U_UU] which would mean
<br>the second disk had failed.<br><br>../C<br><br>--<br>fedora-list mailing list<br><a href="mailto:fedora-list@redhat.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">fedora-list@redhat.com</a>
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https://www.redhat.com/mailman/listinfo/fedora-list</a><br></blockquote></div><br>I know how /proc/mdstat works, so I know the drives haven't failed *yet*.<br><br>However my system log is reporting:<br><br><span>Dec 31 17:04:38 tibeaux smartd[2384]: Device: /dev/sda, 3 Offline uncorrectable sectors
<br>Dec 31 17:04:39 tibeaux smartd[2384]: Device: /dev/sdd, 48 Currently unreadable (pending) sectors<br><br>over and over again. <br><br>And another list member (</span><span id="_user_webmaster@margo.bijoux.nom.br" style="color: rgb(0, 0, 0);">
Pedro Fernandes Macedo <<a href="mailto:webmaster@margo.bijoux.nom.br">webmaster@margo.bijoux.nom.br</a>>) says this means the two disks are in danger of failing. So, unless I can safely prevent against that, I want to replace the disks before they do. I would just add a hot spare and let mdadm do it, but there is no room in the case. So, back to the original question...
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