Re: SRDF/A failover.

From: hpuxrac <johnbhurley_at_sbcglobal.net>
Date: Wed, 18 Feb 2009 16:42:03 -0800 (PST)
Message-ID: <37ef17de-489c-465a-8ee0-303c0f60d5f5_at_z28g2000prd.googlegroups.com>

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 ... Received on Wed Feb 18 2009 - 18:42:03 CST