[TriLUG] Replicating a filesystem across datacenters

[Matt Pusateri]

I’ve had iSCSI over WAN on storage hardware and it didn’t work too well  I suspect filesystem cluster over WAN would also suffer.  If you’re looking at the Hot Standby option.  you may want to looks at ZFS pools as you get snapshot sending built in. May be faster than LVM or rsync.  I’ve sent ZFS snapshots in production and they’ve always been relatively quick. I’ll admit I didn’t compare them  against other options as we already had ZFS being used. 

Matt P.

On Nov 4, 2014, at 4:40 PM, Alan Porter <porter at trilug.org> wrote:

> 
> There are filesystem solutions (someone mentioned GlusterFS).
> 
> There are also block-level solutions like DRBD.  And I seem
> to remember a discussion way back in TriLUG where Jason
> Tower set up two machines to do software RAID over a WAN.
> 
> I think DRBD and RAID are both "active-standby" solutions,
> with some procedure for failover.  They are not multi-active.
> 
> Alan
> 
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