Preparing, Recovering, Preparing recovering – HP XP P9500 Storage User Manual
Page 343: Operating procedure, During an, Intermediate
Operating procedure during an intermediate site storage system failure (volatile)
The following are the procedures that must be performed when a volatile failure occurs in the
intermediate site storage system.
Preparing
1.
From the remote site, execute the YKRECVER command for the Continuous Access Journal Z
copy pair between the intermediate site and the remote site.
•
YKQUERY
•
YKRECVER
•
YKEWAIT GOTO(SIMPLEX) NOINVALIDCHECK
2.
From the primary site, execute the YKMAKE command for the Continuous Access Journal Z
copy pair between the primary site and the remote site.
•
YKQUERY
•
YKMAKE
•
YKEWAIT GOTO(DUPLEX)
Operation in a 2DC configuration starts from the primary site.
Recovering
1.
Recover the intermediate site storage system from the failure.
Using a 3DC Cascade (Cnt Ac-J Z x Cnt Ac-J Z) configuration 343