[Gluster-users] gluster ha/replication/disaster recover(dr translator) wish list

[Prabhu Ramachandran]

Keith Freedman wrote:
> I just wanted to toss out a thought I had to get it on the table.
> 
> For me, the replication features (in any filesystem that supports it) 
> serve several purposes
> 
> 1, is to have 2 or more copies of the data which are live and useable 
> (I think lustre doesn't offer this) -- this is handy for HA, and for 
> performance (in my case, the servers are clients, and so they read 
> data from their local disk and only have to go down to network speed 
> when writing).

Just to second that I'd really appreciate this too.  I've been trying to 
setup a couple of machines on a not-too-reliable 100Mbs network with a 
set of partitions each, mirror the same data.  Thus far I've been 
managing this with scripts that do rsync.

With glusterfs I used unify for the 4 partitions on each machine and 
then afr'd the two unified disks but was told that this is not a 
reliable way of doing things and that I'd run into problems when one 
host goes down.

What you are talking about seems to satisfy exactly what I am trying to 
do and would be very convenient.  If there is a way to do this currently 
with glusterfs I'd definitely like to hear about it.

cheers,
prabhu