Hi Phil,
seems very useful to know in the future. I ended up just assuming
clean and using "--create". Since I was able to discern the exact
configurations, I was able to mount it and am currently transferring
data. I know it was not the ideal solution but I believe that it
worked out with only minimal corruption. I might have problems with
another array soon. If so, I will certainly contact this mailing list
again.
thanks for your help,
Roger
On Feb 21, 2017 9:16 AM, "Phil Turmel" <philip@xxxxxxxxxx> wrote:
Hi Roger,
On 02/20/2017 04:42 PM, Roger Roglans wrote:
> Hey new to the mailing list and fairly new to RAIDs in general. I
> ran into an issue and was hoping someone could help.
We probably can.
> Our server that runs a 14 drive RAID10 through a rocketraid 2470
> controller refused to assemble. Our goal is not necessarily to
> recover a working RAID, but to get as much data back as possible.
Amounts to the same thing.
> Maybe as a consequence of the assembly failure, upon shutting down
> the server, it would get stuck in boot loops. So I'm currently
> running Ubuntu 16.04.1 from a USB. I've determined that 2 of 14
> disks are faulty and have determined which ones they are.
Three. Two have been faulty for a very long time. No-one noticed
the degraded status.
> Here is the output of a mdadm --examine call.
Please re-do this, combined with smartctl, and without grep. This
will tell us everything about your array. Like so:
for x in /dev/sd[a-p] do mdadm -E ${x}1 ; smartctl -iA -l scterc $x ; done
Paste the output *inline* in your plain-text reply with line
wrapping disabled. If your draft email is larger than 100k, split
into multiple emails.
You are likely to need an alternate bootable USB stick -- your
report sounds like one of the versions of mdadm that had a bug
in forced assembly. I usually use the latest one from
https://www.system-rescue-cd.org/
Please also read the recent thread and its references starting
here: https://marc.info/?l=linux-raid&m=148755536616025&w=2
Phil
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