Designing Disaster Recovery Clusters using Metroclusters and Continentalclusters, Reprinted October 2011 (5900-1881)

ST LI ST
Standard A N A
Logical Sym T R1 Inv R2 Inv K T R1 Inv R2 Inv RDF PairDevice
Dev E Tracks Tracks S Dev E Tracks Tracks MDAC STATE
------------------- -- ---------------- ----- ------------
DEV001 01B6 RW 0 0 RW 0326 WD 0 0 S... Synchronized
DEV002 01B7 RW 0 0 RW 0327 WD 0 0 S... Synchronized
DEV003 01B8 RW 0 0 RW 0328 WD 0 0 S... Synchronized
DEV004 01B9 RW 0 0 RW 0329 WD 0 0 S... Synchronized
DEV005 01BA RW 0 0 RW 032A WD 0 0 S... Synchronized
DEV006 01BB RW 0 0 RW 032B WD 0 0 S... Synchronized
DEV007 01BC RW 0 0 RW 032C WD 0 0 S... Synchronized
DEV008 01BD RW 0 0 RW 032D WD 0 0 S... Synchronized
6. Set the composite group to Asynchronous mode.
# symrdf -cg MSCcg set mode async
7. Enable consistency protection to ensure data consistency on R2 side for the SRDF/Asynchronous
devices in the composite group.
# symrdf -cg MSCcg enable
8. If the SRDF pairs are not in a consistent state at this point, initiate an establish command
to synchronize the data on the R2 side from the R1 side. The device state will be SyncInProg
until the consistent status is reached.
# symrdf -cg MSCcg establish
# symrdf -cg MSCcg query -rdfa
RDFA MSC Info
{
MSC Session Status : Active
Consistency State : CONSISTENT
}
Source (R1) View Target (R2) View MODES
------------------ --------------------- ----- ------------
ST LI ST
Standard A N A
Logical Sym T R1 Inv R2 Inv K T R1 Inv R2 Inv RDF PairDevice
Dev E Tracks Tracks S Dev E Tracks Tracks MDAC STATE
-------------- -- ----------------------- ----- ------------
DEV009 0196 RW 0 0 RW 005A WD 0 0 A... Consistent
DEV010 0197 RW 0 0 RW 005B WD 0 0 A... Consistent
DEV011 0198 RW 0 0 RW 005C WD 0 0 A... Consistent
Source (R1) View Target (R2) View MODES
-------------------- ---------------- ----- ------------
ST LI ST
Standard A N A
Logical Sym T R1 Inv R2 Inv K T R1 Inv R2 Inv RDF PairDevice
Dev E Tracks Tracks S Dev E Tracks Tracks MDAC STATE
-------------- -- ----------------------- ----- ------------
DEV001 01B6 RW 0 0 RW 0326 WD 0 0 A..X Consistent
DEV002 01B7 RW 0 0 RW 0327 WD 0 0 A..X Consistent
DEV003 01B8 RW 0 0 RW 0328 WD 0 0 A..X Consistent
DEV004 01B9 RW 0 0 RW 0329 WD 0 0 A..X Consistent
DEV005 01BA RW 0 0 RW 032A WD 0 0 A..X Consistent
DEV006 01BB RW 0 0 RW 032B WD 0 0 A..X Consistent
DEV007 01BC RW 0 0 RW 032C WD 0 0 A..X Consistent
DEV008 01BD RW 0 0 RW 032D WD 0 0 A..X Consistent
Configuring a Package using SRDF/Asynchronous MSC
The following section describes configuring a package using SRDF/Asynchronous MSC for first-time
installation or pre-existing installations.
Initial installation of Metrocluster with EMC SRDF using SRDF/Asynchronous
If you are installing Metrocluster with EMC SRDF using SRDF/Asynchronous for the first time,
complete the following procedure:
298 Building Disaster Recovery Serviceguard Solutions Using Metrocluster with EMC SRDF