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Prabh_Xansa
New User
Joined: 17 Oct 2008
Posts: 8
Location: Noida
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| How we can see the modification date for sequential data set. |
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enrico-sorichetti
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Joined: 14 Mar 2007
Posts: 10873
Location: italy
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the most You will see is the "last referenced date"
the date changed is available only for PDS members with active ISPF statistics |
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Prabh_Xansa
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Joined: 17 Oct 2008
Posts: 8
Location: Noida
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| so there is no way we see the modification date for sequential dataset |
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enrico-sorichetti
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Joined: 14 Mar 2007
Posts: 10873
Location: italy
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| no, there is no way |
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Terry Heinze
JCL Moderator
Joined: 14 Jul 2008
Posts: 1249
Location: Richfield, MN, USA
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| I think SMF records can, but they are not for the faint of heart. |
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enrico-sorichetti
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Joined: 14 Mar 2007
Posts: 10873
Location: italy
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rereading the post...
for a sequential dataset most probably the modification date is the creation date
update in place is not common |
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dick scherrer
Moderator Emeritus
Joined: 23 Nov 2006
Posts: 19244
Location: Inside the Matrix
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Hello,
If the sequential dataset was created 5 months ago, i doubt that you will be able to process the volume of smf data needed to go back that far. . .
Suggest you re-think how valuable this information might be versus the overhead required to retrieve it. |
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Pedro
Global Moderator
Joined: 01 Sep 2006
Posts: 2547
Location: Silicon Valley
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Not sure how universal this is...
HSM will take a backup after a dataset is modified. Issue:
| Code: |
| HLIST DSN(my.seq) BOTH |
And it will give you a rough estimate of when the last change was made. |
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expat
Global Moderator
Joined: 14 Mar 2007
Posts: 8797
Location: Welsh Wales
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| Pedro wrote: |
Not sure how universal this is...
HSM will take a backup after a dataset is modified. Issue:
| Code: |
| HLIST DSN(my.seq) BOTH |
And it will give you a rough estimate of when the last change was made. |
Good avenue to explore. But ...... it does depend largely on the storage polices in place.
I have worked at some wierd places when it came to backup / recovery strategies. Some shops do not use HSM for production backups. Some perform backups daily.
Also, DFdss can be used as a backup and then reset the VTOC bit at end of backup.
I would suggest that the OP has a chat with the storage group and see what they can find out, and with any luck a result.
SMF records are not always accurate. A file may be opened for output (SMF type 15) but not actually written to. One of the reasons that many shops do a delete dataset at the start of the job, create the dataset in flight is to have accurate creation data. |
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