IBM Mainframe Forum

Please forgive my naivety but this is the first time I am seeing a file with this kind of properties.

If you notice it has record count on the control area. If the row is repeated the record count as well as line number increases. I am sorry but I just want to understand what kind of file is this? It does not allow to be modification. The file maintains its property when copied to another using =3.3 but loses it when copied via a tool like file master or file aid.

Pardon my ignorance please and thank you for your help.

Why would you create a dataset with an LRECL of 8?

Your best bet would be to talk to your site support group about the file. It is possible that there is security (e.g., RACF) on the original file to prevent updates that is not copied to a new file. There are other possiblities, however, so talking to your site support group is your fastest way to figure out what's going on.

Thank you for your help Bob. The problem was discovered with profile option of a file. When I opened the file it had "NUM ON STD" thats why it incremented number along with incrementing the record. Once profile was changed to 'NUM OFF' we were able to modify the file. However if we saved an came back to the file the record number was same as the record we had modified it to. In general ISPF profiles do not have NUM ON STD but in this case it did.

Hello,

Thank you for your help Bob.

Ah, Umm, Err - - That would be Robert. . .

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Why would you create a dataset with an LRECL of 8?

Well, any number of reasons really. Last week I created one with LRECL=4, on purpose. But setting the RECFM=F with BLKSIZE of 8 as described above will pretty much guarantee appalling performance...

stevexff wrote:

Why would you create a dataset with an LRECL of 8?

Well, any number of reasons really. Last week I created one with LRECL=4, on purpose. But setting the RECFM=F with BLKSIZE of 8 as described above will pretty much guarantee appalling performance...

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