We have recently encountered a problem which has left
us a little less
than happy. We have IDS 9.30.FC6 installed on AIX 5.2
on an HACMP
cluster basically sharing the disk arrays between two
processors. We had a
problem and had to fail over to the alternate system.
We found that we
could no longer start up ism and therefore we could
not use onbar.

Like all good customers we reported the problem
through to informix
support who have come back with the statement that ism
won't work on
HACMP.

My question is this:-
Has anybody on this group used onbar/ism
satisfactorily on HACMP?

Another question is:-
If we can't use ism does anybody know if any of the
other storage
managers are compatible with HACMP?

regards

Malcolm

sending to informix-list

malcolm,

"we reported the problem through to informix support"

Was this IBM Informix support? Or do you have a different support
provider?

As far as I am aware all failover should be handled by the OS. As far
as Informix and ISM are concerned this server name and everything
should be the same. If this has failed to work I would consider
discussing with you OS vendor or whoever configured your HACMP.

ISM needs 'hostname' to work properly. Does "hostname" return the same
response from both nodes?

Have you implemented HACMP in a way where hostname is changed
dynamically during the boot, and that currently prevents static or DNS
resolution?

I think, to solve your problem, you must activate name resolution for
hostname and uname.

Or maybe try adding 127.0.0.1 localhost in your /etc/hosts if its not
there already?

johnd



malcolm weallans wrote:
> We have recently encountered a problem which has left
> us a little less
> than happy. We have IDS 9.30.FC6 installed on AIX 5.2
> on an HACMP
> cluster basically sharing the disk arrays between two
> processors. We had a
> problem and had to fail over to the alternate system.
> We found that we
> could no longer start up ism and therefore we could
> not use onbar.
>
> Like all good customers we reported the problem
> through to informix
> support who have come back with the statement that ism
> won't work on
> HACMP.
>
> My question is this:-
> Has anybody on this group used onbar/ism
> satisfactorily on HACMP?
>
> Another question is:-
> If we can't use ism does anybody know if any of the
> other storage
> managers are compatible with HACMP?
>
> regards
>
> Malcolm
>
> sending to informix-list