I have mirroring set up from server PRD to DR, working fine.

Doing failover test right now, all is going well. Took PRD offline,
changed IP, now DR box is responding as if it were the PRD box. Have
left PRD box down for now.

In DR box error log, about three times a second, is this:
Database Mirroring login attempt failed with error: 'Connection
handshake failed. An OS call failed

Is that just the DR box mirroring looking for its partner? Does it
have to do it so often?

On May 17, 10:38 am, JOH <JOHollo...@gmail.com> wrote:
> I have mirroring set up from server PRD to DR, working fine.
>
> Doing failover test right now, all is going well. Took PRD offline,
> changed IP, now DR box is responding as if it were the PRD box. Have
> left PRD box down for now.
>
> In DR box error log, about three times a second, is this:
> Database Mirroring login attempt failed with error: 'Connection
> handshake failed. An OS call failed
>
> Is that just the DR box mirroring looking for its partner? Does it
> have to do it so often?

Correction, the PRD (original server) was brought back up, but I don't
see that the mirror has reset itself.

On May 17, 10:51 am, JOH <JOHollo...@gmail.com> wrote:
> On May 17, 10:38 am, JOH <JOHollo...@gmail.com> wrote:
>
> > I have mirroring set up from server PRD to DR, working fine.
>
> > Doing failover test right now, all is going well. Took PRD offline,
> > changed IP, now DR box is responding as if it were the PRD box. Have
> > left PRD box down for now.
>
> > In DR box error log, about three times a second, is this:
> > Database Mirroring login attempt failed with error: 'Connection
> > handshake failed. An OS call failed
>
> > Is that just the DR box mirroring looking for its partner? Does it
> > have to do it so often?
>
> Correction, the PRD (original server) was brought back up, but I don't
> see that the mirror has reset itself.

OK, answered my own question .. the IP hadn't been reset yet, so the
handshaking was failing .. once the engineer took care of that,
mirroring reset on its own, then I was able to resume and failback.