HBDELETE against Million dataset



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HBDELETE against Million dataset

Postby Antonyraj85 » Thu Feb 16, 2012 6:53 pm

Hi all,

Automatic HSM dataset backup is enabled 4 Storage Groups since last 10 years. Also, we have set Expire after Days Non-usage as NOLIMIT in the management class attribute. So almost millions of datasets are reside in HSM tape. Now, wants to clean all the datasets(HBDELETE) with older than 1/2 years. Each datasets on the HSM tapes are different versions.

Now we are doing HLIST against all the datasets and HBEDLETE issued with help of simple REXX code. It already took too much time. Still, lot have to do. Is there other way to do with less time.

I have referred HSM Guide - DFSMShsm Managing ur own data. But not helpful. Can anyone done before ? Please share !!!!!

Antony
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Re: HBDELETE against Million dataset

 

Re: HBDELETE against Million dataset

Postby expat » Thu Feb 16, 2012 11:57 pm

Have you been running the EXPIREBV utility of DFSMShsm on a regular basis to remove redundant backup versions.

Also, it is very very stupid and dangerous to delete backup versions and rely only on the ML2 copy of a dataset.

You really need to investigate the retention requirements of each and every dataset before you go around deleting things, especially if they are a legal requirement.
What happens if you delete the backup versions of a legally required dataset and the ML2 copy, if it exists, become unreadable.

You need to talk to your storage management people to resolve this.
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Re: HBDELETE against Million dataset

Postby Antonyraj85 » Fri Feb 17, 2012 11:10 am

Thanks a lot. It is already agreed by application support people. So we started. Planning to keep last 2 years datasets on HSM tapes.

Antony
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