El 10/04/2011, a las 12:19, hansbkk AT gmail DOT com escribió:

> On Sun, Apr 10, 2011 at 12:16 PM, Les Mikesell <lesmikesell AT gmail DOT com> 
> wrote:
>> I've never heard of raid sync affecting the original disk(s).  I've been 
>> doing
>> it for years, first with a set of firewire external drives (which also had 
>> USB
>> but it was slower), then the sata bays.  There might be problems in adding 
>> more
>> members than originally created in the set, though.  In your situation I 
>> would
> <snip>
> 
> FYI for all, not doubting Les' good experience doing this  (using
> mdraid mirroring as a user-land tool to mirror a partition to an
> external drive for offsite backup rotation):
> 
> I had a pretty extensive discussion with the Linux-RAID list on
> thisand the general conclution was that the way mdraid does the
> mirroring would just add unnecessary kruft to the resulting filesystem
> and make recovery more difficult.
> 
> The bottom line from them was that rather than using RAID to do the
> mirroring to a removable drive, better to just use a tool like DD.
> When I expressed that I wanted a bit more assurance of a "bit-perfect"
> mirror being done, and was directed to these enhanced versions:
> 
> http://dc3dd.sourceforge.net/
> http://www.forensicswiki.org/wiki/Dc3dd
> 
> Of course there are many COTS "partition cloning" tools out there as
> well if that's a better fit for a given situation.

Hi all:

After many years looking for some work around to the pool replication problem 
without success, why not start a new pool design that could be replicated?
Something based on MySQL?

It should'n be that hard replacing the routings that manage hardlink creation 
and the like with sql queries. It could even have all the ACLs of the files and 
directories stored on MySQL.



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