HP XP Racks - Manual (Page 717)

If a system name starts with a number, Business Continuity Manager forms the log
stream name by taking the last five characters from the system name and appending
them to YKS. Therefore, if a system name starts with a number, the substring used
for the log stream name must be unique in the Sysplex.
The following example shows how the system name starting with a number is
converted to the system name with a log stream name:
•
System name 1SYS starts with a number and contains fewer than 5 characters.
Business Continuity Manager appends 1SYS (4 characters) to YKS and creates
the system name YKS1SYS.
•
System name 1SYSTEM starts with a number and contains more than 5
characters.
Business Continuity Manager appends YSTEM (the 5 last valid characters) to
YKS
and creates the system name YKSYSTEM.
•
System name 1SYSTEM and 2SYSTEM both start with numbers and contain
more than 5 characters.
The log stream names for both systems are YKSYSTEM and are thus identical.
It might be necessary to change the system name specified in IEASYSxx.
For details on system names, see the MVS Initialization and Tuning Reference.
DASDONLY(YES)
The log stream is a DASD-only log stream.
A log stream in the system logger service is either a coupling function log stream
or a DASD-only log stream. Since a coupling function log stream is not required
for Business Continuity Manager, the DASD-only log stream should be selected.
MAXBUFSIZE( maxbufsize)
Maximal block size of a log is 64,000 bytes.
Since the maximum CTF is 60 KB (61,440 bytes), specify 64,000 bytes as the
block size for extra capacity.
STG_SIZE( stg_size)
Specify 100 to 1,000 (400 KB to 4 MB) as the size of the staging dataset.
Do not specify this parameter when using an SMS definition.
STG_DATACLAS( stg_dataclas)
Specify this parameter when using an SMS definition. Specify the name of the SMS
data class used for allocation of the DASD staging dataset for a log stream.
STG_MGMTCLAS( stg_mgmtclas)
Specify this parameter when using an SMS definition. Specify the name of the SMS
management class used for allocation of the DASD staging dataset for a log stream.
STG_STORCLAS( stg_storclas)
Specify this parameter when using an SMS definition. Specify the name of the SMS
storage class used for allocation of the DASD staging dataset for a log stream.
LS_SIZE( ls_size)
The specification of the DASD log dataset size is optional.
Collecting Logs 717