On 3/26/24 20:47, CAREY SCHUG via cctalk wrote:
if you ever get a request to forense a raid for
Solaris, take whatever
$$ they offer you. just plug 'em in anywhere, diff controllers,
different sequence, no matter. they have fingerprints, the os will
figure out and mount the raid, including recovery mode if one is
missing.
I did a recovery on a ReadyNAS device created on the original Netgear
devices which used the mini sparc linux. unfortunately the raid array
software they used there had 4k setup, and at the time the Linux on i86
was all 512 byte block sized.
though the original reason i favored ReadyNAS was because they used
Linux instead of some proprietary raid chip which might or might not be
supported, the 4k vs 512 byte took some doing.
it didn't "just work" at all.
And Netgear discontinued the Sparc version in favor of x86 and the
problem subsequently went away.
The problem was by the way that the recovery scan stalled on real small
physical defect block areas. I had to go in and manually map out the
files with the errors, which were luckily not ones I required as had
other copies, but Netgear didn't fix the problem on the original boxes.
They could recover if you could replace an entire disk, but when there
was a small defect, nope.
thanks
Jim
BTW the recovery at the time required building a driver I found and
adding it to the kernel. Not a fun or quick task.