Failback Process - IBM System storage DS6000 Series Redbook

ANTP0090I CQUERY FORMATTED LVL 3 239
VOLUME REPORT
************** PPRC REMOTE COPY CQUERY - VOLUME ********************
*
*
*DEVICE
*------ --------- ---------- ----------- ---------
* 6030 PRIMARY.. SUSPEND(3)
*
* PATHS PFCA SFCA STATUS: DESCRIPTION
* ----- --------- ------ -------------------
* 1
*
*
*
* SUBSYSTEM
* ----------- ----------------
* PRIMARY.... 500507630EFFFC6F
* SECONDARY.1 500507630EFFFCA0
********************************************************************
ANTP0001I CQUERY COMMAND COMPLETED FOR DEVICE 6030. COMPLETION CODE: 00
ANTP8802I CQUERY DEVN(6430)
ANTP0090I CQUERY FORMATTED LVL 3 242
VOLUME REPORT
************** PPRC REMOTE COPY CQUERY - VOLUME ********************
*
*
*DEVICE
*------ --------- ---------- ----------- ---------
* 6430 PRIMARY.. SUSPEND(3)
*
* PATHS PFCA SFCA STATUS: DESCRIPTION
* ----- --------- ------ -------------------
* 1
*
*
*
* SUBSYSTEM
* ----------- ----------------
* PRIMARY.... 500507630EFFFCA0
* SECONDARY.1 500507630EFFFCA0
* SECONDARY.2 500507630EFFFC6F
********************************************************************
ANTP0001I CQUERY COMMAND COMPLETED FOR DEVICE 6430. COMPLETION CODE: 00
Both devices are in suspend state. Note that for device 6430, the direction of the Metro Mirror
pairing has been reversed. Because the volume is in suspend state, changes will be recorded
by the DS6000. At this stage you could start running your application at the secondary site.

16.2.2 Failback process

The high level failback process in a planned scenario is as follows:
1. Quiesce the applications at the recovery site.
2. Use Metro Mirror establish path commands to create paths from the recovery site to the
primary site (remember, paths are required for all LSS pairs).
3. Issue Metro Mirror establish pair commands to the B volume, specifying the Failback
action and reversing the original PRIM and SEC parameters. This copies any changes
LEVEL STATE PATH STATUS SERIAL#
CRIT(NO)....... CGRPLB(NO). 0000000AAGXA 0000000AAVCA*
0000 0000 13 PATH ESTABLISHED...
---- ---- 00 NO PATH............
---- ---- 00 NO PATH............
---- ---- 00 NO PATH............
WWNN
LEVEL STATE PATH STATUS SERIAL#
CRIT(NO)....... CGRPLB(NO). 0000000AAVCA 0000000AAGXA*
0100 0100 13 PATH ESTABLISHED...
---- ---- 00 NO PATH............
---- ---- 00 NO PATH............
---- ---- 00 NO PATH............
WWNN
(PRIMARY) (SECONDARY) *
SSID CCA LSS SSID CCA LSS*
ACTIVE.. 2060 30 00
LIC LEVEL
-----------
5.0.00.0000
(PRIMARY) (SECONDARY) *
SSID CCA LSS SSID CCA LSS*
ACTIVE.. 0002 30 00
LIC LEVEL
-----------
5.0.00.0000
Chapter 16. Metro Mirror examples
SERIAL# *
--------- *
0002 30 00 *
*
*
*
*
*
*
*
*
*
*
SERIAL# *
--------- *
2060 30 00 *
*
*
*
*
*
*
*
*
*
*
*
189