High availability ... again

Kevin Baker kbaker at missionvi.com
Tue Jun 22 15:27:24 EDT 2004


While we are discussing network storage for HA.

Would there be a problem with NAS over Gigabit?





> * Etienne Goyer
>
>  > 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
>  > though.
>
>   Most decent storage equipment meant for SANs has
> redundancy
>  everywhere.  Double powersupplies, double storage
> processors with
>  mirrored memory/cache, and naturally the possibility to
> configure the
>  disks in a fully redundant manner.  It's easy to make the
> connection
>  from the hosts to the storage redundant, too - just use
> two HBAs and
>  two switches, and make sure both of the switches are
> connected to all
>  the other end points (both SP's on the storage and both
> servers).
>
>   In my opinion using a SAN is perfectly adequate for HA
> needs (it has
>  not failed me, at least!), but it's your call of course.
> :-)
>
> Kind regards,
> --
> Tore Anderson
> ---
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