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Alan Playford
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Joined: 22 Aug 2012
Posts: 48
Location: UK
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The usual ISPF "B" or "V" option to browse a VBS file doesn't work.
For these, we use the "BR" ISPF line command which (IIRC?) came from the CBT tape?
We can thus view RECFM=VBS DSORG=PS files happily.
However, we cannot view extended sequential VBS datasets (DSORG=PSE).
The B line command doesn't work of course ("Invalid record length") but BR also gives this same error.
Even IDCAMS PRINT DUMP COUNT(10) cannot open the file:
IDC3300I ERROR OPENING WINBM.DSNDB06.SYSTSIXS.A0070929
IDC3315I ** RECORD SIZE GREATER THAN 32760 NOT SUPPORTED
However, Db2 is happy to load this dataset into a table.
Is there any known way to view these types of datasets?
In case you're interested, sample dataset characteristics are attached below or see the attachment:
| Code: |
Data Set Information
Command ===>
Data Set Name . . . . : TPCC.W010.DSNDB06.SYSTSIXS.A0059292
General Data Current Allocation
Management class . . : **None** Allocated cylinders : 4
Storage class . . . : EXTENDED Allocated extents . : 4
Volume serial . . . : WCKDS9 +
Device type . . . . : 3390
Data class . . . . . : EXTENDED
Organization . . . : PS Current Utilization
Record format . . . : VBS Used cylinders . . : 1
Record length . . . : 32768 Used extents . . . : 1
Block size . . . . : 27966
1st extent cylinders: 1
Secondary cylinders : 9 Dates
Data set name type : EXTENDED Creation date . . . : 2018/12/03
Referenced date . . : 2019/05/10
Expiration date . . : ***None***
SMS Compressible . : NO
Extended Attributes OPT
Create Jobname A0059292
Create Stepname UNLOAD9
To display multiple volumes press Enter or enter Cancel to Exit. |
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Nic Clouston
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Joined: 10 May 2007
Posts: 2454
Location: Hampshire, UK
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| Attachments are not appreciated especially when the same can be achieved using the code tags. Original post edited to reflect this. |
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sergeyken
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Joined: 29 Apr 2008
Posts: 2145
Location: USA
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Attribute DSORG=POE is not used in zOS; instead, DSORG=PO,DSNTYPE=LIBRARY is common way to define it.
In ISPF 3.4 screen this library is marked under Dsorg as PO-E, but this value is not used when attributes are to be set.
In your case this is regular DSORG=PO library.
The problem is in RECFM=VBS processing, but not in DSORG=POE. |
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Alan Playford
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Joined: 22 Aug 2012
Posts: 48
Location: UK
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Sergeyken,
This is not a PDSE or Library, it is an extended physical sequential file - PSE.
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sergeyken
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Joined: 29 Apr 2008
Posts: 2145
Location: USA
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| Alan Playford wrote: |
Sergeyken,
This is not a PDSE or Library, it is an extended physical sequential file - PSE.
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OK, sorry. Steel sleepy this morning. |
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Robert Sample
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Joined: 06 Jun 2008
Posts: 8700
Location: Dubuque, Iowa, USA
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| Quote: |
| Is there any known way to view these types of datasets? |
Not easily -- the MVS JCL Reference manual states (emphasis by me)
| Quote: |
| Subparameter definition bytes Specifies (1) the length, in bytes, for fixed length records or (2) the maximum length, in bytes, for variable-length records. The value of bytes is: • 1 to 32,760 for non-VSAM data sets. • 1 to 32,761 for VSAM key-sequenced (KS), entry-sequenced (ES), or relative record (RR) data sets. (LRECL does not apply to VSAM linear space, RECORG=LS, data sets.) For VSAM key-sequenced (KS) data sets, a record length must be specified, either explicitly with the LRECL or LIKE parameter, or in the data class for the data set. The record length must be greater than the key length |
You might be able to cobble up something using LRECL=X (the manual's recommendation for QSAM when LRECL is more than 32760), but maybe not. If you can recreate the data set with LRECL=32760, BR will probably allow you to browse it. The ISPF manual, however, EXPLICITLY states that VBS is not supported so you cannot use B to browse it. The "invalid record length" messages you cited supports the idea that 32760 is the maximum that can be used by QSAM. |
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steve-myers
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Joined: 30 Nov 2013
Posts: 917
Location: The Universe
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| Robert Sample wrote: |
| ...You might be able to cobble up something using LRECL=X (the manual's recommendation for QSAM when LRECL is more than 32760), but maybe not. If you can recreate the data set with LRECL=32760, BR will probably allow you to browse it. The ISPF manual, however, EXPLICITLY states that VBS is not supported so you cannot use B to browse it. The "invalid record length" messages you cited supports the idea that 32760 is the maximum that can be used by QSAM. |
It is certainly true you cannot specify LRECL=32768 in JCL. However, an Assembler program can specify LRECL=32768 in a DCB macro in the program. This is common with Assembler programs that create and manipulate SMF data. A workaround that often works (at least with real SMF data) is to copy the data set to a data set with RECFM=VB, LRECL=32756, BLKSIZE=32760. This results in horrible space utilization on disk, but might produce a data set you can browse. If this is real SMF data it will not be particularly helpful, but at least you can browse it. |
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Alan Playford
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Joined: 22 Aug 2012
Posts: 48
Location: UK
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Thanks to all who responded.
Unfortunately, this is a DFDSS restore of a Customer dataset, and so the attributes shouldn't really be altered. |
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