March 2003
Intermediate to advanced
282 pages
9h 13m
English
book
IMS in the Parallel Sysplex Volume I: Reviewing the IMSplex Technology
by Jouko Jantti, Juan Jesœs Iniesta Mart’nez, Knut Kubein, Bill Stillwell, Gary Wicks
Content preview from IMS in the Parallel Sysplex Volume I: Reviewing the IMSplex Technology
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Chapter 12. Using Automatic Restart Manager (ARM) for IMS 255
FDBR registers and interacts with the IMS Version 8 Structured Call Interface (SCI).
FDBR has the following disadvantages:
FDBR does not restart the failed IMS.
FDBR does not invoke the following recovery processes:
– Resolution of in-doubt threads with CICS and DB2
– Recovery of IMS message queues
– Recovery of MSDBs
– Release of DBRC database authorizations
12.1.16 XRF advantages and disadvantages
XRF has the following advantages:
XRF begins its database recovery processing sooner than an IMS restart initiated by
ARM. XRF is tracking the active IMS by reading its log. This eliminates most of the log
reading that is required in an ARM-initiated restart.
XRF can resolve in-doubt ...
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