Maximum no. of records allowed in PF

15 pts.
Tags:
Physical File
A question based on an interview: Is there any limitation or standard followed regarding maximum no. of records that could be populated in a physical file. If yes, then what is the reason.

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The defaults are shown below, this file will allow 10000 records to be added to the file
then a message to the operator allows an increment to be added.

Member size:
Initial number of records . . 10000
Increment number of records . 1000
Maximum increments . . . . . . 3

Standard in our shop is *NOMAX

Discuss This Question: 4  Replies

 
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  • philpl1jb
    There is a risk with NOMAX - that a program error causes an infinite loop adding records the system until the disks are effectively full.
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  • JStu
    Philip is right, *NOMAX can lead to a horrible ugly system crash that requires special procedures to recover from.
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  • WoodEngineer
    Avoid *NOMAX like the plague. We had a program bug that wrote records to a file until the system halted due to all the disk space it consumed. Very ugly.
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  • TomLiotta
    ...a horrible ugly system crash that requires special procedures to recover from. The crash is simply the system coming to a stop. An IPL brings the system back. The only "special procedures" necessary are those that delete records from the file and deallocate the space. That might be as simple as DLTF. Tom
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