Johnny Hughes wrote:
>On Mon, 2005-12-05 at 15:44 -0800, Bryan J. Smith wrote:
>
>
>>Ugo Bellavance <ugob@xxxxxxxxxxxxxx> wrote:
>>
>>
>>>I'd take a look at drbd (www.drbd.org) while you're reading
>>>on heartbeat. I use it for web servers, but I'm not sure
>>>if it would be suitable for file servers.
>>>
>>>
>>There is a lot more to handling network file services --
>>especially when it comes to locking and controlling write
>>access -- that web servers don't have to worry about. ;->
>>
>>
>>
>I use drbd and heartbeat on a samba domain controller that has
>failover ... BUT, you can't use both machines at the same time.
>
>AND, it takes a GiB connector to keep the files in sync ... trying to do
>it via a WAN connection would, I think, be fairly impossible.
>
>
I've managed to keep two moderately busy servers in sync using frequent
rsync over a WAN VPN tunnel. However, that tunnel was over an OC-3
link. I suspect it would be a rather painful affair over DSL/cablemodem
or even a few bonded T1's. Something like drbd that treats a remote
volume as a device would definitely not work on such a "skinny" link
unless the servers were relatively lightly used.
Cheers,
