Gil, looks like we are talking about the same but from different towers. My note about DSvsFile touches only DASDies (exactly harddisks) devices. Of course, if we mean magnetic tapes, 80-column decks, paper tapes, etc. we can say all data as file, dataset or, may be, set of data, as you want. The organization there is always sequential.
=Maxim P.S. But, by the way, I've worked with direct-access magnetic tapes at 80's (!). On soviet BESM-6 machines... 2017-04-27 16:42 GMT+03:00 Paul Gilmartin <[email protected]>: > On Thu, 27 Apr 2017 15:53:21 +0300, Maxim Bochagov wrote: > >>> Typically a "dataset" is MVS - z/OS, while a "file" is UNIX. >> >>Please do not forget about the z/VM (CMS minidisk, SFS). So, we will >>use this sentence as >>Typically a "dataset" is MVS - z/OS, while a "file" is UNIX or z/VM. >> >>Anyway, the dataset is a self-organized data on ECKD device with >>different Count-Key's, ... >> > No. From: > z/OS 2.2.0 > z/OS DFSMS > z/OS DFSMS Using Data Sets > All Data Sets > Working with Data Sets > Data Storage and Management > ... > You can store data on secondary storage devices, such as a direct access > storage > device (DASD) or magnetic tape volume. The term DASD applies to disks or > to a > mass storage medium on which a computer stores data. A volume is a > standard > unit of secondary storage. You can store all types of data sets on DASD > but only > sequential data sets on magnetic tape. Mountable tape volumes can reside > in an > automated tape library. For information about magnetic tape volumes, see > z/OS > DFSMS Using Magnetic Tapesz/OS DFSMS Using Magnetic Tapes. You can also > direct a sequential data set to or from spool, a UNIX file, a TSO/E > terminal, a unit > record device, virtual I/O (VIO), or a dummy data set. > > I trust you don't dispute that publication as a final authority. Or would you > care to suggest an alternative? Or submit an RCF? > > -- gil > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN -- Regards, =Maxim Bochagov ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
