[mdlug] More new hard drive details

[Jeff Hanson]

On Thu, Jan 15, 2009 at 2:07 PM, Aaron Kulkis <akulkis00 at gmail.com> wrote:
> That's all well and nice, but it doesn't tell us much.  The crucial
> piece of the pie is the LVM configuration -- even if NONE of your
> non-root partitions gets corrupted, if the LVM config is corrupted,
> then the rest of the partitions are.... recoverably ONLY with the
> investment of significant time and $$$.
>
> As for the filesystems themselves, they don't care whether they
> are on an LVM or not... the filesystem is just a string of bytes,
> whether on one contigous partition, or in blocks added willy-nilly
> from several block devices.

My root partiton was corrupted as the memory error caused the kernel
to write past the end of the disk (and probably random writes
everywhere else).  LVM2 tools just look for the partition metadata,
the config files are only a convenience:
http://dev.riseup.net/grimoire/storage/lvm2/#how_to_use_a_lvm_devices_on_a_different_machine_

How many LVM2 recoveries have you performed and what problems did you encounter?