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mohitkalia
New User
Joined: 07 Jun 2005
Posts: 4
Location: Orlando
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Hi All,
We are having a debate in our company whether to use ADRDSSU vs Sort to backup files. I know there is benefit in ADRDSSU that you don't need to maintain JCL steps in case new files are to be added in future. Is there any other reason(like performance) in support of using ADRDSSU? |
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dick scherrer
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Joined: 23 Nov 2006
Posts: 19243
Location: Inside the Matrix
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Hello,
If you are backing up multiple "things", use ADRDSSU.
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| I know there is benefit in ADRDSSU that you don't need to maintain JCL steps in case new files are to be added in future |
I strongly suggest that you do not underrate this. Most datacenters have thousands of files to back up. And there are additions and deletions quite regularly most places. Keep in mind that one of the things that you do with a backup is restore - either an environment or selected files. This is typically easy with ADRDSSU - one set of jcl and change the control info for the run.
I believe there are several types of data that sort will not copy. . . I'm sure someone can clarify.
If you want to copy one file or another, sort will do nicely. I'd not recommend using sort for what i call "backups".
Hopefully, i've not read too much into your question. . . |
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mohitkalia
New User
Joined: 07 Jun 2005
Posts: 4
Location: Orlando
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Dick,
Thanks for a quick reply. I totally agree with your comments. I wanted to add more ammo for my discussion tomorrow. I guess less maintenance would be my selling point.
Thanks again |
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dick scherrer
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Joined: 23 Nov 2006
Posts: 19243
Location: Inside the Matrix
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You're welcome 
Yes, less maintenance and assuming some decent dataset naming standards a very big benefit reducing the number of potential errors due to the possibly high amount of maintenance.
There would also the the consideration of the amount of media needed to do this via sort (or any other dataset at a time utility). Then there would be the logistics of getting all of these backups to some off-site storage for disaster recovery. . .
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| I wanted to add more ammo for my discussion tomorrow. |
I'll also add that in many, many centers, i've never seen the system backed up using the sort product. . . |
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mohitkalia
New User
Joined: 07 Jun 2005
Posts: 4
Location: Orlando
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| Yes we have a very robust naming standards so I guess ADRDSSU will help us. Thanks for taking time out to reply. |
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dick scherrer
Moderator Emeritus
Joined: 23 Nov 2006
Posts: 19243
Location: Inside the Matrix
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| You're welcome - good luck |
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expat
Global Moderator
Joined: 14 Mar 2007
Posts: 8796
Location: Welsh Wales
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Why not give a simple example.
Take 10 datasets from DASD and back them up to ONE tape using both Dfdss and SORT.
Show them the JCL and the maintenence required for each method.
This is surely not a "cost" issue as Dfdss come free with z/OS |
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mohitkalia
New User
Joined: 07 Jun 2005
Posts: 4
Location: Orlando
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| I did that already and was able to convince them that ADRDSSU was the way to go. Thanks anyway for your input. |
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