On Wed, 5 Apr 2017 16:49:20 -0500, Mark Zelden <[email protected]> wrote:
> >Yes. The devices are only allocated / in use by one LPAR at a time. <snip> The word I should have used instead of "allocated" was "assigned". 3480 and later devices get assigned to an OS / LPAR via assign CCW that the control unit understands and that reserves the tape drive to the task using it similar to what a DASD reserve would do. Likewise, there is an unassign CCW to free the tape drive for another task. Mark -- Mark Zelden - Zelden Consulting Services - z/OS, OS/390 and MVS ITIL v3 Foundation Certified mailto:[email protected] Mark's MVS Utilities: http://www.mzelden.com/mvsutil.html Systems Programming expert at http://search390.techtarget.com/ateExperts/ ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
