Reattaching Metro Mirror
If you detached the target copy and have completed your work with the detached target copy, you must reattach the detached target copy to resume using Metro Mirroring.
The detached target copy must be unavailable when you reattach it to the source copy.
Note: When you reattach the detached
mirror copy, as of V6R1, there is the option to detach with tracking,
which only requires a partial synchronization on reattach. Changes
that are made on the source copy will be applied to the target copy,
and all changes that are made on the detached target copy will be
overwritten with the contents from the source copy.
Reattaching the target copy with PowerHA® graphical interface
To use the PowerHA graphical interface to
reattach the mirror copy, follow these steps:
- In a Web browser, enter http://mysystem:2001, where mysystem is the host name of the system.
- Log on to the system with your user profile and password.
- Click PowerHA from
the IBM® Navigator
for i window.
- On the PowerHA page,
click Independent ASPs.
- On the Independent ASPs page,
select Details… from the context menu of the
independent disk pool for which you want to reattach the mirror copy.
- On the Independent ASP Details page,
select Reattach from the context menu of the
mirror copy.
- Click Yes on the
confirmation panel.
Reattaching the target copy with command-line
interface
To reattach metro mirroring using
the command-line interface, use the following command:- CHGASPSSN SESSION(session-name) OPTION(*REATTACH) where session-name is the name of your DS8000 Metro Mirror session.
- CHGSVCSSN SESSION(session-name) OPTION(*REATTACH) where session-name is the name of your SAN Volume Controller (SVC) Metro Mirror session.