Thanks I look at the IHADCB DSECT comments > On Mar 2, 2021, at 2:18 AM, Michael Stein <[email protected]> wrote: > > On Mon, Mar 01, 2021 at 09:37:57PM -0500, Joseph Reichman wrote: >> For NCP do you have to have a counter of the number of reads you do >> till you do a check > > Yes, but since you need a separate DECB for each read I'd create the > DECB's after open based on the NCP value. And then the "availablity" > of a not in use DECB would control the number of outstanding READs. > > I strongly suspect that a good BSAM implementation isn't going to be > faster than QSAM. QSAM can queue reads for more than one block. > > See the DCB keyword BUFNO (and JCL DD DCB subparm BUFNO). > > PS: I'd suggest using GET Locate mode (MACRF=GL) > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN
---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
