I made the following observation: 1. WRITE. I put some data to tape (3592J). The average transfer speed was approx. 70MB/s. SDSF shows very high SIO rate for the job, approx. 2500. Data generated by IEBDG, blocksize=32720, RECFM=FB, LRECL=80 2. READ. I read *the same* data, which I previously wrote. Got even higher transfer speeds, approx. 100MB/s,but significantly lower SIO rate, approx. 40 Dataset (FB 80 32720) read by ICEGENER.
I think, ICEGENER reads the data in much larger chunks, so the number of I/O is lower, but the speeds is even greater. Am I right ? -- Radoslaw Skorupka Lodz, Poland ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
