https://www.ibm.com/support/knowledgecenter/SSLTBW_2.1.0/com.ibm.zos.v2r1.idad400/ciopt.htm Physical blocks in a CI is multiple of 512 up to 4096 bytes.
On Tue, Jan 16, 2018 at 11:00 AM, Clark Morris <[email protected]> wrote: > [Default] On 16 Jan 2018 06:54:52 -0800, in bit.listserv.ibm-main > [email protected] (Ron hawkins) wrote: > >>Tim, >> >>Things changed a couple of decades ago. >> >>VSAM physical block is not always the same as the CISZ. >> >>32K CISZ does not waste any space on the track. > > Where is this written up? Being retired, I missed this and didn't > realize this was true on the OS390 system I worked on in the 1990s. > > Clark Morris >> >>Ron >> >>---------------------------------------------------------------------- >>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 -- Mike A Schwab, Springfield IL USA Where do Forest Rangers go to get away from it all? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
