[mdlug] Drive Assignment Changed when Reinserted into Server

[Adam Tauno Williams]

On Mon, 2012-07-02 at 10:38 -0400, Robert Adkins II wrote: 
> Thanks for the extra information.
> I want to eliminate potential issues before they become issues.
> I'll review blkid and also LVM.

If you can switch to LVM *TODAY*.  It is *THE* solution, everything else
is a work-around.

But at least use UUIDs for identifying drives rather then device names.
There is no real reason to every use device names on modern systems.

> Still aiming for the goal of a good clean HD based backup system.

LVM provides snapshots AND the ability to migrate logical volumes and
portions of logical volumes between physcial volumes.  Very hand for
doing upgrades in hot-swap enclosures.

> If worse comes to pass, I'll just leave two of the drives as "Hot Back Up"
> drives and use a pair of USB to SATA Enclosures for the portable back up,
> the USB system seems to be working significantly better with regards to
> reconnecting a drive.

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