Let's assume the following scenario:
"Disastrous" power outage occured, no alternate power source is
available, only UPS battery. Time for battery discharge is approx. 20-30
minutes.
DASD is mirrored to remote site, system z/OS, DB2, CICS.
The goal is to keep *remote* copy as consistent as possible. Additional
goal is to make system start possibly quick.
What operational scenario would be best in this case:
1. Do nothing. At the remote site DB2 will backout all uncommited
transactions.
2. Try to issue
F CICSname,CEMT P SHUT
-DB2 STOP DB2
$PJES2
Probably the remaining time is not enough to finish the commands above.
3. Try "radical" commands like
F CICSname,CEMT P SHUT I
-DB2 STOP DB2,FORCE
$PJES2,TERM
4. Other (???)
--
Radoslaw Skorupka
Lodz, Poland
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