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tammy cook
New User
Joined: 30 Nov 2005
Posts: 2
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I am trying to create a tape backup in COBOLII of three VSAM files, one of which is being changed to a spanned file (lrecl of > 100000). My program compiles, but I get an unsuccessful open or close error when I try to run the program. The error is on the open. The FD is
LABEL RECORDS ARE STANDARD
BLOCK CONTAINS 0 CHARACTERS
RECORDING MODE IS S. |
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jon_s_rice
Active User
Joined: 24 Mar 2005
Posts: 102
Location: Douglasville, GA USA
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For a VSAM file you need to define a key if the file is KSDS, also a select similar to:
SELECT ACCTMSTR-FILE-IN
ASSIGN TO ACCTMIN
ORGANIZATION IS INDEXED
ACCESS IS SEQUENTIAL
RECORD KEY IS ACCTMSTR-KEY
FILE STATUS IS ACCTMSTR-FILE-STATUS.
There is a different assign for an ESDS file. I thing assign to as-ddname. |
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tammy cook
New User
Joined: 30 Nov 2005
Posts: 2
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I am not creating a VSAM file as the backup, it is tape.
Is there a way around the size limit when creating a tape? I have seen a utility ADRDSSU which backs up to tape with no size limit. |
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DavidatK
Active Member
Joined: 22 Nov 2005
Posts: 700
Location: Troy, Michigan USA
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Tammy,
I think you?re limited to 32K record. One method would be to break the record up in the COBOL program and write the record in sections. Make it a variable record length, including an indicator, this could be a key (sequential number) that is applied to each piece of the record. This way, with the length and key you can re-assemble the record. |
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mmwife
Super Moderator
Joined: 30 May 2003
Posts: 1592
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Hi Tammy,
IBM now supports large block sizes. They call them something like BLOGS or BLOIS or some such. Problem is it's only supported in Assembler Language. |
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