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Finding the space utilised and space remaining on the DASD


IBM Mainframe Forums -> JCL & VSAM
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new2cobol

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Joined: 04 Jan 2006
Posts: 77
Location: Bangalore

PostPosted: Fri Jun 02, 2006 9:29 pm
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The space utilised and the space remaining on the
DASD ?
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ofer71

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Joined: 27 Dec 2005
Posts: 2358
Location: Israel

PostPosted: Wed Jun 28, 2006 1:22 pm
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TASID will do the job.

O.
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sril.krishy

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Joined: 30 Jul 2005
Posts: 183
Location: hyderabad

PostPosted: Thu Jun 29, 2006 12:13 pm
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The simple option is ,

Go to 3.4 option and then place your dataset ,use the option 'S' against the dataset.

Then the below kind of screen will apper.
Code:

                              Data Set Information                         
 Command ===>                                                               
                                                                           
 Data Set Name . . . . : XXX.YYY.KKK.JCL                               
                                                                           
 General Data                           Current Allocation                 
  Management class . . : XXXXX          Allocated tracks  . : 185         
  Storage class  . . . : XXXXX          Allocated extents . : 15           
   Volume serial . . . : XXXX                                             
   Device type . . . . : 3390                                               
  Data class . . . . . : DCNULL         Current Utilization                 
   Organization  . . . : PO              Used tracks . . . . : 176         
   Record format . . . : FB              Used extents  . . . : 15           
   Record length . . . : 80                                                 
   Block size  . . . . : 3120                                               
   1st extent tracks . : 3                                                 
   Secondary tracks  . : 13                                                 
   Data set name type  : PDS                                               
                                                                           
   Creation date . . . : 1998/01/08      Referenced date . . : 2006/06/29   
   Expiration date . . : ***None***                                         
                                                                           


You can get all the information about the dataset.

Thank you
Krishy
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graswant

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Joined: 29 Apr 2006
Posts: 93
Location: Singapore

PostPosted: Tue Sep 19, 2006 4:09 am
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Its simple...

Go to 3.4 put the HLQ and enter...when you see the list of datasets...press function key PF10 and PF11 to see the informations...

Correct me If I am worng...

Thanks.
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vikram

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Joined: 08 Mar 2005
Posts: 8

PostPosted: Thu Sep 21, 2006 3:39 am
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Hi,

Go to 3.4 option and give the Volume name and then give V on command prompt.
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vicky1373

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Joined: 21 Jan 2006
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PostPosted: Tue May 22, 2007 10:58 pm
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how can we determine the space if its a VSAM file
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dick scherrer

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Joined: 23 Nov 2006
Posts: 19243
Location: Inside the Matrix

PostPosted: Tue May 22, 2007 11:50 pm
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Hello,

Have the above replies answered your question?
Quote:
The space utilised and the space remaining on the DASD ?


Do you want to know how full a file is or how full a dasd device is? They are completely different questions.
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vicky1373

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Joined: 21 Jan 2006
Posts: 7

PostPosted: Thu May 24, 2007 3:48 am
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I wanted to check how full the file is... Whats the current utilization of the file... When I just do the ListCat on the file I see the number of extents and primary space but not the actual size of the VSAM. It will be great if you could answer it...
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dick scherrer

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Joined: 23 Nov 2006
Posts: 19243
Location: Inside the Matrix

PostPosted: Thu May 24, 2007 5:08 am
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Hello,

Please try this link http://ibmmainframes.com/viewtopic.php?t=21126&highlight=vsam+space

It looks like this question was answered yesterday.

If that does not get what you want, please let us know.
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vicky1373

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Joined: 21 Jan 2006
Posts: 7

PostPosted: Thu May 24, 2007 10:16 pm
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does that mean if high used RBA and high alloc RBA are equal, the file is 100% full and it cannot take anymore records in it.
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expat

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Joined: 14 Mar 2007
Posts: 8796
Location: Welsh Wales

PostPosted: Thu May 24, 2007 10:27 pm
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No, it means that the current allocation of extents is used. If secondary extents have been allocated, or even additional DASD volumes, then the file will continue to grow.

Obviously if the file has reached 123 extents then unless another volume has been defined it will not accept more records.
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enrico-sorichetti

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Joined: 14 Mar 2007
Posts: 10886
Location: italy

PostPosted: Thu May 24, 2007 10:28 pm
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the only starting point to analyze dasd utilization is the DCOLLECT output
augmented by the storage administrator samples from dfsort

for DCOLLECT look at the AMS refernece manual

for the storage administrator dfsort samples look at
http://www-304.ibm.com/jct01004c/systems/support/storage/software/sort/mvs/srtmpkg.html

regards
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vicky1373

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Joined: 21 Jan 2006
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PostPosted: Fri May 25, 2007 7:42 pm
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How can we determine how many CYL, TRKS, BLKS used for a given VSAM on knowing the high used RBA and high alloc RBA
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expat

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Joined: 14 Mar 2007
Posts: 8796
Location: Welsh Wales

PostPosted: Fri May 25, 2007 9:48 pm
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About six posts below this one is this one

http://www.ibmmainframes.com/viewtopic.php?t=21126

Which if you had searched, you may have found yourself.
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vicky1373

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Joined: 21 Jan 2006
Posts: 7

PostPosted: Fri May 25, 2007 10:49 pm
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Thanks for the answers - But the above link gives me the percentage... Does the High used RBA and high alloc RBA gives me the physical space in CYLS. When I do Listcat I get the Extents and Tracks. Is that the physical space used by the file?

Thanks
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