|
|
|
The checkpoint count is a number between 0 and 9999 that determines the intervals at which CA XCOM Data Transport is to take a checkpoint. Checkpointing, when supported, gives CA XCOM Data Transport the ability to restart a file transfer that has been suspended or that has failed due to a facility type problem. The checkpoint count number indicates the number of blocks that CA XCOM Data Transport transfers between checkpoints. If record packing is not being used, it is the number of records.
Making the checkpoint count number low slows down file transfers. It is suggested that a value of at least 1000 be specified; on high‑speed facilities such as Token Ring and Ethernet the highest possible value should be used. Each time a checkpoint is taken, the output buffers on the receiving system are written to disk.
If the receiving system is z/OS or z/VSE, the checkpoint count should be a multiple of the blocking factor. For example, if the DCB attributes are RECFM=FB, LRECL=80 and BLKSIZE=8000, then the checkpoint count should be a multiple of 100.
To turn checkpointing off, specify 0.
Default: 1000
| Copyright © 2012 CA. All rights reserved. |
|