High availability ... again
etienne.goyer at linuxquebec.com
Mon Jun 28 09:43:02 EDT 2004
Ben Carter wrote:
> Etienne Goyer wrote:
>> Tore Anderson word of wisdom where :
>>> There's a third option, which is the one I prefer the most: shared
>>> block device.
>> Well, I did not consider that option since the SAN become a single
>> point-of-failure, and that is a big no-no according to the
>> specifications I have at the moment.
>> If it would have been possible, it would have been my first choice
> Do you consider the SAN a SPOF even if you have multiple paths to it
> from each server and it has no internal SPOF? If so, isn't your cluster
> or your single physical location a SPOF?
Two location, a single path (20 Mb/s) between the two. Thinking about
it, the SPOF is actually the link between the two location. The
situation is pretty much toasted as there cannot be a fully redundant
setup. Case closed !
On a similar note, RedHat have apparently bought Sistina, and GPLed GFS.
This is great news for HA under Linux, IMHO. I will be testing it soon.
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