Hi, and sorry in advance if these are simple questions.  I'm not a storage 
administrator, but am trying to figure out some things about how our system 
operates.

Our environment is z.OS 1.4, running DFSMS/hsm as well as DFHSMdss and 
DFSMSrmm.  We use both automatic backups of changed datasets and ML!/ML2 
migration.  In reading the manuals and piecing together what we have running 
here, I have determined that we run an EXPIREBV EXECUTE NONSMS(DBU(60) 
CATALOGED UNCATALOGED(60)) command on a weekly basis, followed the next day by 
a RECYCLE command for tape consolidation.  As far as I can tell, we don't use 
ABARS.  We do full volume backups of the entire system daily outside of 
DFSMShsm control which we duplicate and send 2 sets offsite.

1.  If I have a non-SMS managed dataset that has been backed up and I then 
delete the dataset, does DFSMShsm consider this a retired dataset?  In other 
words, on my weekly EXPIREBV run, will DFSMShsm wait 60 days after the dataset 
is scratched and then delete all the backup copies of the dataset?  

2.  Currently we do not duplicate our ML2 or HSM backup tapes (yes I know 
that's bad).  I want to start doing this.  However, I'm confused as to how this 
is supposed to work.  We use PARTIALTAPEREUSE so we can fill up our 3590 tapes 
and keep the number of HSM tapes to a manageable size.  The manual seems to 
indicate that I can't use this if I want to duplicate the tapes to send a copy 
offsite.  Here's what I want to do.  For both ML2 and backups, I want HSM to 
reuse partially filled tapes to do the backups/migrations and then to copy the 
tapes to duplicates that I can send offsite.  The next time migration/backups 
run I want HSM to make new duplicates of both the partially filled and 
completely filled tapes to send offsite, and HSM to tell RMM to scratch the 
previous offsite duplicates.   Can I do this, and if so, how?

Thanks in advance.

Rex Pommier
†
CNA Surety
101 South Phillips Ave
Sioux Falls, SD  57104
605-977-7719


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