Building Disaster Tolerant Serviceguard Solutions Using Metrocluster with EMC SRDF
Building a Continental Cluster Solution with EMC SRDF
Chapter 5 355
RDev Pair
--- ---- ----- --------- ------------ ------ ------ ---
-----------------
000 000 R2:2 RW WD RW SYN DIS OFF 0 0 WD
RW Synchronized
001 001 R2:2 RW WD RW SYN DIS OFF 12 0 WD
WD Invalid
ftsys1a# symrdf list
Symmetrix ID: 000183500021
Local Device View
----------------------------------------------------------
------------------
STATUS M O D E S RDF S T A T E S
Sym RDF --------- ------------ R1 Inv R2 Inv
----------------------
Dev RDev Typ:G SA RA LNK Mode Dom ACp Tracks Tracks Dev
RDev Pair
--- ---- ----- --------- ------------ ------ ------ ---
----------------
000 000 R2:2 RW WD RW SYN DIS OFF 0 0 WD
RW Synchronized
001 001 R2:2 RW WD RW SYN DIS OFF 2 0 WD
RW SyncInProg
9. Halt the recovery cluster and restart it.
# cmhaltcl -f (if the cluster is not already down)
# cmruncl
10. Verify the data for data consistency and currency.
Scenario 2
The primary site Symmetrix experienced a catastrophic hardware failure
and all data was lost on the array.
After the reception of the Continentalclusters alerts and alarm, the
administrators at the recovery site follow prescribed processes and
recovery procedures to start the protected applications on the recovery
cluster. The Continentalclusters package control file will invoke
Metrocluster with EMC SRDF to evaluate the status of the Symmetrix