Wasn't that SVC 120? Or possibly part of it. Do those components you mention use the media manager (another component that is not well documented to mere mortals)?
Lennie Dymoke-Bradshaw https://rsclweb.com 'Dance like no one is watching. Encrypt like everyone is.' -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Seymour J Metz Sent: 24 March 2022 14:10 To: [email protected] Subject: Actual Block Processor There used to be an MVS component called Actual Block Processor that did low level I/O for CI-formatted data. IS there an equivalent routine in z/OS used by, e.g., HFS, PDSE? If so, is there a source that I can cite in Wikipedia? -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ---------------------------------------------------------------------- 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
