On Thu, 13 Oct 2022 07:29:43 -0500, Carmen Vitullo <[email protected]> wrote:
>it's been a while since I've used configured tape devices like this but >if I recall correctly you need to define the devices as shared and >define a CF structure to use AUTOSWAP , or a product like MIM to manage >the devices across multiple systems. > >at my site using a virtual tape system we have defined 256 devices and >just manage the number of devices we need across 3 LPARS, all others >are varied offline at IPL time, so one range is online to LPAR1 then >then next range is varied online to LPAR2 and so on. > >that for us was an easier option especially with the virtual tape system > >Carmen > IEFAUTOS (the CF structure) has not been required since z/OS V2. ATS STAR is the "new" OS method of sharing tape drives. It does require defining them as AS (auto-switchable) in the IODF or it can be done with a VARY command. Here is some relevant doc: https://www.ibm.com/docs/en/zos/2.3.0?topic=star-setting-up-automatic-tape-switching Best Regards, 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
