[ale] Hardware RAID5 recovery in software

[Chuck Payne]

If you lost one, you should be able to replace that drive and raid
will rebuild itself.  Have you tried to move all three drives and the
card to a computer works? I have done this on Dell, but I will note
that the machine were the same model, and I was able to rebuild the
raid on the new machine once I replace the drive.


Pup

On Thu, Mar 6, 2014 at 11:28 AM, Beddingfield, Allen <allen at ua.edu> wrote:
> You are going to have to probably go a step further -
> If you want to recover the data from the degraded RAID 5, you are going to need a RAID adapter from the same manufacturer, and preferably the same model.
> Allen B.
> --
> Allen Beddingfield
> Systems Engineer
> The University of Alabama
>
> ________________________________________
> From: ale-bounces at ale.org [ale-bounces at ale.org] on behalf of Dustin Strickland [dustin.h.strickland at gmail.com]
> Sent: Thursday, March 06, 2014 10:18 AM
> To: ale at ale.org
> Subject: [ale] Hardware RAID5 recovery in software
>
> I just want to put this out there: I'm not *very* familiar with RAID,
> but I get by. I have a unique situation and I'm not sure how to handle
> it -- suggestions would be appreciated.
>
> So, my client has a machine - an *old* machine - that was running an
> ancient version of Redhat, acting as a Samba server. I'm not too clear
> on the details of what happened, but the result: the motherboard in the
> server is apparently bad. So is the RAID card that was installed. Also
> one of the disks of the three that were installed. The other two work
> fine. This machine will not boot, I tried everything. We've made the
> decision to set up another machine to run Samba. Now here's the hitch.
> The only available machine has only two SATA ports and we still need to
> grab his old data.
>
> Yesterday I used a Live USB stick to dd the data from both of the good
> drives, one at a time, on to a third. Now, I don't even know if the
> data is recoverable - after we started copying the second disk, we left
> it to run overnight so I haven't been able to check it out. If it *is*,
> how would I go about it? I've never encountered hardware RAID before,
> either - would this even be possible to fix in software?
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-- 
Terror PUP a.k.a
Chuck "PUP" Payne

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