As Schmuel said, as long as the multiple VM’s only need READ access to these devices, you need device entries in each VM directory defining them as full-disk “mini discs” RR (read only).
Look at the current directory entries for any one of the VM’s and see how the z/OS disks are defined, then replicate that format for each of the “shared” disks in all of the VM directories but with RR as the read/write attribute for each shared disk. Peter From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Matt Hogstrom Sent: Friday, December 6, 2024 10:36 AM To: [email protected] Subject: Re: z/OS Devices under z/VM They work fine once I manually attach them. I’m looking for the magic to have z/VM IPL, the guests come up and immediately have access to the devices without manually intervention. I can hack my way through z/VM but I’m not expert in that space. -- Matt Hogstrom “To achieve great things two things are needed: a plan, and not quite enough time.” - Leonard Bernstein > On Dec 6, 2024, at 10:14, Seymour J Metz > <[email protected]<mailto:[email protected]>> wrote: > > Full pack minidisks worked fine for me in VM/SE (SEPP); I see no reason why > they wouldn't work in z/VM. > > -- > Shmuel (Seymour J.) Metz > https://urldefense.com/v3/__http://mason.gmu.edu/*smetz3__;fg!!Ebr-cpPeAnfNniQ8HSAI-g_K5b7VKg!Oib8A7YVSao-RNwnjKVt7qyk1zm82eQMU6j3-U2JjKsa65TmLOVQGHxc8VQz82Vn4c7xv1uVAWzYvi1nBmSF$<https://urldefense.com/v3/__http:/mason.gmu.edu/*smetz3__;fg!!Ebr-cpPeAnfNniQ8HSAI-g_K5b7VKg!Oib8A7YVSao-RNwnjKVt7qyk1zm82eQMU6j3-U2JjKsa65TmLOVQGHxc8VQz82Vn4c7xv1uVAWzYvi1nBmSF$> > עַם יִשְׂרָאֵל חַי > נֵ֣צַח יִשְׂרָאֵ֔ל לֹ֥א יְשַׁקֵּ֖ר > > > > ________________________________________ > From: IBM Mainframe Discussion List > <[email protected]<mailto:[email protected]>> on behalf of Matt > Hogstrom <[email protected]<mailto:[email protected]>> > Sent: Friday, December 6, 2024 10:09 AM > To: [email protected]<mailto:[email protected]> > Subject: z/OS Devices under z/VM > > External Message: Use Caution > > > I have a z/VM system where I’m running three guests in a SYSPLEX. I added > some DASD that is shared across the three guests (this is all running in ZD&T > which I don’t think is relevant). I can access the devices if I ATTach them > to the z/os guests but that is a manual process. All the other DASD for the > systems is automatically picked up. > > Is there a mechanism in z/VM that I need to do outside the directory to > automatically connect the new devices to the guests. After a guest logs out > and then subsequently re-ipl’d I need to re-attach the devices. > > Thoughts? -- This message and any attachments are intended only for the use of the addressee and may contain information that is privileged and confidential. If the reader of the message is not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any dissemination of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail and delete the message and any attachments from your system. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
