On 22/05/14 19:49, L. M. J wrote:
On 22 mai 2014 13:16:20 CEST, Benjamin ESTRABAUD <be@xxxxxxxxxx> wrote:
On 21/05/14 23:05, L. M. J wrote:
Hi,
Very short story : I've created an array on top of another one,
I presume that you actually mean that you created an array ontop of the
disks from another array.
so I lost my array and my data.
Is there à way to recover RAID 5 meta data on each disk to be able
to rebuilt the previous raid 5?
Well, if you used the same metadata version (like 1.2 for instance),
the
"old" metadata would have been overwritten by your new RAID metadata
(assuming you built the RAID on the same drives/partitions) so that
would be gone as well.
Even if you were able to rebuild the "previous" RAID (also assuming it
was a RAID5), if your current RAID build has completed the data would
have been thoroughly destroyed by the build process and recovery would
be insanely hard.
Thabks
Regards,
Ben.
Strange, answer 1 seems different speech, have a look : http://serverfault.com/questions/499051/mdadm-mdadm-cannot-open-dev-sda1-device-or-resource-busy
Hi,
I'm not sure this SO question (how to create a RAID10 with the contents
from one drive) relates to your problem. The first answer is about
creating a RAID10 with a device missing (the device that currently holds
the data), formatting the RAID so that the data from the "missing" RAID
device can first be copied, and then adding the data to the RAID. This
is to avoid having to copy any data to an intermediate drive when
reusing a drive (with valid data) to create a RAID.
Regards,
Ben.
Thanks
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