DCE in HACMP environment

DCE in HACMP environment

Post by ste.. » Wed, 31 May 2000 04:00:00



Hi,

I have 2 S70's in a hot standby rotating resouces cluster. This cluster
has sybase , cics and DCE ( security and directory services ) running.

We have a seperate TEST system running on a F50 with it's own DCE ,
cics etc.

I now want to move the TEST system from the F50 onto the standby S70
and have this as the new test environment.

Production will be running on the other S70 and in the event of a
failover on Production , the TEST environment will shutdown on the
standby node and production will startup there.

What I want to know is how to configure the DCE side of this ? Is it
okay for the TEST system to use it's own seperate dce cell ? Must the
test S70 be a dce client of the production S70 ?

Has anyone configured anything like this before ??

Any suggestion appreciated.

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DCE in HACMP environment

Post by fatda.. » Wed, 31 May 2000 04:00:00




> Hi,

> I have 2 S70's in a hot standby rotating resouces cluster. This
cluster
> has sybase , cics and DCE ( security and directory services ) running.

> We have a seperate TEST system running on a F50 with it's own DCE ,
> cics etc.

> I now want to move the TEST system from the F50 onto the standby S70
> and have this as the new test environment.

> Production will be running on the other S70 and in the event of a
> failover on Production , the TEST environment will shutdown on the
> standby node and production will startup there.

> What I want to know is how to configure the DCE side of this ? Is it
> okay for the TEST system to use it's own seperate dce cell ? Must the
> test S70 be a dce client of the production S70 ?

> Has anyone configured anything like this before ??

> Any suggestion appreciated.

> Sent via Deja.com http://www.deja.com/
> Before you buy.

Hi Steve

This info may be out of date but last time I set up a DCE cluster
(about 18 months ago) you couldn't have DCE in a mutual takeover
environment due to certain directories (/etc/dce /var/dce etcetera)
being explicit. The only way you could have both cluster nodes running
separate DCE environments would be to sacrifice the test environment in
the event of any failure. So if your production node fails, stop the
test environment on the standby node as part of the takeover or if the
"backup" node fails don't failover the test DCE environment.

I don't know if / how DCE has changed to make your scenario possible.

Cheers

Darren

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DCE in HACMP environment

Post by ste.. » Wed, 31 May 2000 04:00:00






> > Hi,

> > I have 2 S70's in a hot standby rotating resouces cluster. This
> cluster
> > has sybase , cics and DCE ( security and directory services )
running.

> > We have a seperate TEST system running on a F50 with it's own DCE ,
> > cics etc.

> > I now want to move the TEST system from the F50 onto the standby S70
> > and have this as the new test environment.

> > Production will be running on the other S70 and in the event of a
> > failover on Production , the TEST environment will shutdown on the
> > standby node and production will startup there.

> > What I want to know is how to configure the DCE side of this ? Is it
> > okay for the TEST system to use it's own seperate dce cell ? Must
the
> > test S70 be a dce client of the production S70 ?

> > Has anyone configured anything like this before ??

> > Any suggestion appreciated.

> > Sent via Deja.com http://www.deja.com/
> > Before you buy.

> Hi Steve

> This info may be out of date but last time I set up a DCE cluster
> (about 18 months ago) you couldn't have DCE in a mutual takeover
> environment due to certain directories (/etc/dce /var/dce etcetera)
> being explicit. The only way you could have both cluster nodes running
> separate DCE environments would be to sacrifice the test environment
in
> the event of any failure. So if your production node fails, stop the
> test environment on the standby node as part of the takeover or if the
> "backup" node fails don't failover the test DCE environment.

> I don't know if / how DCE has changed to make your scenario possible.

> Cheers

> Darren

> Sent via Deja.com http://www.deja.com/
> Before you buy.

Thanks Darren,

What you mentioned above is what I want to do. IE:

S70(1) Running production environment with dce mounted file systems as
hacmp resources ( /var/dce /etc/dce /var/cic_clients) etc .

S70(2) Running test environment with all dce info in root directories.

In the event of production failing, the test environment on the standby
machine will shut down and the production machine will start up
mounting it's DCE filesystems over the local dce directories.

Will this be able to work ??

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DCE in HACMP environment

Post by Jose Pina Coelh » Mon, 05 Jun 2000 04:00:00


Quote:> What you mentioned above is what I want to do. IE:

> S70(1) Running production environment with dce mounted file systems as
> hacmp resources ( /var/dce /etc/dce /var/cic_clients) etc .

> S70(2) Running test environment with all dce info in root directories.

> In the event of production failing, the test environment on the standby
> machine will shut down and the production machine will start up
> mounting it's DCE filesystems over the local dce directories.

> Will this be able to work ??

Probably yes, but if something goes wrong and one of the filesystems
fails to mount is might make a mash of the DCE data. (Though the most
probable scenario is that it'll just refuse to start).

--
Doing AIX support was the most monty-pythonesque
activity available at the time.

 
 
 

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