Re: SRDF/A failover.

From: <shweta.kaparwan_at_googlemail.com>
Date: Wed, 18 Feb 2009 17:05:51 -0800 (PST)
Message-ID: <a81ff88e-afbd-4126-a7c4-3102d7e85faa_at_v19g2000yqn.googlegroups.com>

On Feb 19, 12:42 am, hpuxrac <johnbhur..._at_sbcglobal.net> wrote:
> On Feb 18, 6:33 pm, shweta.kapar..._at_googlemail.com wrote:
>
>
>
>
>
> > Hi All
>
> > We have site -A (Live) and site-B (Disaster Recovery).
>
> > Database is replicated to site-B using EMC SRDF/A links.
>
> > We use Veritas global cluster manager to monitor/control the failover.
>
> > Global failover is set to manual not automatic. i.e. Manually DNS
> > entries has to be updated. so that services can be pointed towards the
> > surviving site.
>
> > To start the databases at site-B ( DR site)
> > 1. SRDFA links should be made split.
> > 2. After (1) above database is started at DR site.
>
> > Question:
> > a) What if site -A ( live) is operational and site-B( DR) is in sync
> > with site-A through SRDFA links.
> >     Next if accidently databases   at DR site are started without
> > splitting the SRDFA links, does that will dismount
> >     the  SAN   file system at site-A( live) and hence bring down the
> > live databases?
>
> > Regards
>
> > Shweta.
>
> The DR site should not be read/writeable until the links are split.
> Read the EMC white papers on Oracle SRDFA ...- Hide quoted text -
>
> - Show quoted text -

Thanks for the prompt reply.
Agreed
> The DR site should not be read/writeable until the links are split.
But what if
DR site is read/waiteable without links are split...

In such a scenario - Both site becomes read/writeable so will that make site-A ( in our example..) down.?

also could you please refer the link to
> Read the EMC white papers on Oracle SRDFA ...

Regards

Shweta Received on Wed Feb 18 2009 - 19:05:51 CST