On Mon, 1 Mar 2021 13:13:50 -0500, Joseph Reichman wrote: >Who uses tape > Programmers who want large blocks?
>I went to bsam trying to speed up my application wonder if going to bsam > >Does anything positive for me > >> On Mar 1, 2021, at 1:10 PM, Paul Gilmartin wrote: >> >> On Mon, 1 Mar 2021 11:24:57 -0500, Joseph Reichman wrote: >> >>> It disk then documentation says the system only supports tape at this time >>> is That true ? >>> >> Have you any reason to doubt it? >> >> I suspect it's a hardware limitation. >> >>>>> On Mar 1, 2021, at 11:22 AM, Paul Gilmartin wrote: >>>> >>>> On Mon, 1 Mar 2021 09:12:59 -0500, Joseph Reichman wrote: >>>> >>>>> I have 100 files concatenated that are normally processed by qsam with a >>>>> lrecl 31996 and blksize 32000 >>>>> >>>>> Since processing takes a long time I was looking to speed things up by >>>>> specifying a blksize of 320000 in the DCBE >>>>> >>>> What device type? >>>> >>>>> After the first read using bsam read macro I looked at the first 4 bytes >>>>> ( Block descriptor word ) and it was x’7C4A’ which is 31,888 which seemed >>>>> to me that it was still processing blksize of 32,000 -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
