October 2006
Intermediate to advanced
160 pages
4h 9m
English
book
DB2 for z/OS: Data Sharing in a Nutshell
by Paolo Bruni, Mark Anders, KyengDong Park, Mark Rader, Judy Ruby-Brown
Content preview from DB2 for z/OS: Data Sharing in a Nutshell
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60 Data Sharing in a Nutshell
Failure is reduced to a single point (the external CF) and the lock and SCA
structures now can rebuild into the ICF if the external CF fails. Loss of a
processor does not affect the CF, which will remain intact.
Technology considerations for external CFs
An important factor to be considered for an external CF is the technology relative
to the central processors. We recommend that there should be no more than a
one generation difference between the processor and its external CF:
A System z990 should have either a z990, z890, or z900 external CF.
A System z9 should have either a System z9 BC or a z890 external CF ...
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