I have a situation where HSM will happily start autobackup with
MAXBACKUPTASKS equal to 4 but then after a while will demount the tapes
it is using only to reload them almost immediately to do further backup.
This happens regularly throughout autobackup but it only happens on the
TEST system....the PRODUCTION system is fine..the tapes stay mounted
until they are full.  I have checked the SETSYS parameters for the two
systems are there is no obvious reason for this as all the backup
parameters are the same.

 

EG The following message is issued and then the tape M01051 is
dismounted and not long after (about a minute) HSM requests the same
tape to be mounted again.

 

IEC205I SYS00427,HSMTEST,HSMTEST,FILESEQ=0001, COMPLETE VOLUME LIST 

DSN=HSM.BACKTAPE.DATASET,VOLS=M01051,TOTALBLOCKS=49061     

 

Any ideas? 

 

 

Richard Marchant


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