Re: using SAN without a cluster

Sreejith,

The EMC SAN does support FDDI cards (at least 2 depending upon the model). You can have to options.

Option 1. Connect the EMC to both Superdomes, but do not mount the file systems on the second one, and then have a script to do the mounts when you detect a failure.

Option 2. Run the Superdomes to a FDDI hub and the hub to the EMC. This would allow you to add additional servers at a future date, then use the same script mention above to "fail over" the filesystem.

One final note, and company not willing to provide adequate and proper HA software for a mission critical system (and this is one, right?), is just look for a reason to go out of business, so keep great documentation on your concerns and the management's responses, because when this system fails, and it will, they are going to be looking to hang somebody, and it will a lot harder if you have an evidence trail to hang you!

Jim
"Sreejith" <sreejithkn_at_yahoo.com> wrote in message news:78f45ce8.0210061620.7742eada_at_posting.google.com...
> Hi all,
> I need to use SAN with HP superdome servers but without using
> s/w cluster. I have 2 superdomes and can have a Emc Symmentrix as SAN
> but the company won't buy the HA cluster software. I am not sure
> whether the software for HA is available with the superdome servers.
> that is the reason we are looking for a solution. The solution I have
> is, we will have the SAN connected to the first superdome which will
> have the oracle database files while we have the oracle software on
> the both superdomes. Incase of failure we can physically connect the
> SAN to the other superdome and get it working. The downtime could be
> equal to the time to connect the 2nd superdome after we know about the
> failure. I am not sure whether this works which is like mounting the
> datafile filesystem on the server when there is a failure.
> Please let me know if this is OK or we have any other solution ?
>
> Thanks
Received on Tue Oct 08 2002 - 19:08:26 CDT