Designing Disaster Tolerant High Availability Clusters, 10th Edition, March 2003 (B7660-90013)

Physical Data Replication for ContinentalClusters Using EMC SRDF
Failback Scenarios
Chapter 7 351
target.......Started.
Device: 001 .............................................
Merged.
Merge device track tables between source and
target.......Done.
Resume RDF
link(s)........................................Done.
Read/Write Enable device(s) on SA at source
(R1)..........Done.
The RDF ’Failback’ operation successfully executed for
device group ’pkgCCB_r1’.
8. During the resync it goes from status failed over > invalid >
SyncInProg. Example:
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 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
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