Statistics for PDS members

ISPFStats can be set to either TRUE or FALSE in a client FTP.DATA file or can be set using the LOCSITE subcommand. If ISPFStats is set to TRUE, FTP creates and maintains statistics for partitioned data set members. The following explains the effect ISPFStats has on PDS member statistics when you are issuing GET and MGET subcommands.

Note: ISPFStats is ignored for sequential data sets. Also, the record format must be either variable or fixed, and the record length must be less than 256. Transferring PDS member to PDS member in block mode or in compress mode differs in behavior from transferring in stream mode. If the user wants to preserve the statistics of a PDS member that already has the statistics and have the same statistics copied over to the target PDS member, transferring in block mode or in compress mode is required.

Effect of ISPFStats setting when issuing GET or MGET when the file does not already exist
Whenever a PDS member is being transferred, FTP checks the setting of ISPFStats. If the member does not already exist, FTP follows what the ISPFStats is set to. For example:
- If ISPFStats is TRUE, FTP creates statistics for PDS members.
- If ISPFStats is FALSE, FTP does not create statistics.
Effect of ISPFStats setting when issuing GET or MGET when the target PDS member already exists
Whenever a member is being transferred, FTP checks the setting of ISPFStats. If the targeted PDS member already exists, FTP considers whether the target member has statistics and the setting of ISPFStats. For example:
- If ISPFStats is TRUE and the existing member has statistics, FTP updates the statistics.
- If ISPFStats is TRUE and the existing member does not have statistics, FTP creates the statistics.
- If ISPFStats is FALSE and the existing member has statistics, FTP updates the statistics and sends a message indicating the behavior.
- If ISPFStats is FALSE and the existing member does not have statistics, FTP does not create statistics.