Date: Thu, 26 Jun 2008 10:15:32 -0400 From: Sean Cavanaugh <millenia2000@hotmail.com> To: Garrett Cooper <yanefbsd@gmail.com>, <current@freebsd.org>, FreeBSD Questions <freebsd-questions@freebsd.org> Subject: RE: URGENT: Need help rebuilding iir RAID5 array with failed drive Message-ID: <BAY126-W48D804726FD458B3ADC7F1CAA30@phx.gbl> In-Reply-To: <7d6fde3d0806260649t6619521bv92b65c472ddb7e1@mail.gmail.com> References: <7d6fde3d0806260649t6619521bv92b65c472ddb7e1@mail.gmail.com>
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Most GOOD RAID cards will let you rebuild an array from the card BIOS outsi= de the OS. Some will even do it automatically, if you replace the failed drive, while = the system is fully up and running (of course it slaughters your drive acce= ss speed while it rebuilds the data on the new drive) If your RAID card can only interact with the drives from within an OS, I wo= uld highly suggest getting a better RAID card to save you trouble in the fu= ture. =20 the fact that you have the array as RAID 5 shows that you haven't lost any = data and should not get any data errors as far as the OS can see. -Sean Cavanaugh =20 > Date: Thu, 26 Jun 2008 06:49:19 -0700> From: yanefbsd@gmail.com> To: curr= ent@freebsd.org; freebsd-questions@freebsd.org> CC: > Subject: URGENT: Need= help rebuilding iir RAID5 array with failed drive> > Hello,> First off sor= ry for the cross-post. I typically don't do this> but this is an important = question, so please bear with me. I'm just> trying to get more eyes on the = subject so I can (maybe) get a reply> quicker...> I'm running 8-CURRENT on = my machine and it appears that one of> the disks in my RAID5 array has take= n a nose dive (BIOS recognizes> that it exists, but Intel Matrix Manager cl= aims that the disk is an> "Offline Member"). After doing some reading it ap= pears that it's> kaput, so I need to get a replacement disk to fix this one= ...> That aside, I need to determine how to rebuild the array in a> Unix en= vironment because Intel only provides instructions for how to> use their Wi= ndows matrix manager. If anyone can point me to some links> or provide me w= ith some pointers on how to correct this issue, I'd owe> you a lot; in fact= the next time you come by Santa Cruz, CA I'll> gladly treat you to some be= ers or something else you might want :)...> Linux solutions (if there isn't= a proper one for FreeBSD) are valid,> as long as the core data remains unc= orrupted and I can do what I need> to from a LiveCD. I'm just scared to boo= t up OS and have it do some> irrevocable operation like fsck -y and assume = parity errors are ok or> something along those lines (I don't remember if I= set rc.conf to> fsck -y and I know I can change that from single-user mode= , but I want> to play things conservatively if at all possible) :\...> File= system is UFS2 with softupdates of course.> Point proven that I need to bac= kup my data more often :(...> TIA,> -Garrett> > PS If replying on the quest= ions@ list, please CC me as I'm not> subscribed to that list.> ____________= ___________________________________> freebsd-questions@freebsd.org mailing = list> http://lists.freebsd.org/mailman/listinfo/freebsd-questions>; To unsub= scribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"=
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