Thanks Steven, That did solve the problem. :-)
Cheers, Don On Tue, Oct 26, 2021 at 13:42 Steven Imler <steven.im...@broadcom.com> wrote: > Don, > > You likely need the updated RPM that corrects this problem: SO10302 - > VMTLI: > MOUNT FAILS, TAPE DRIVE DETACHED AFTER ATTACH > > JR (Steven) Imler > Sr. Software Engineer | Mainframe Division > Broadcom > > office: +1 571.401.8685 > 2291 Wood Oak Drive | Herndon, Virginia 20171 > steven.im...@broadcom.com | broadcom.com > > -----Original Message----- > From: Linux on 390 Port <LINUX-390@VM.MARIST.EDU> On Behalf Of Donald > Russell > Sent: Tuesday, October 26, 2021 04:35 PM > To: LINUX-390@VM.MARIST.EDU > Subject: Fwd: udev detaching devices? > > RHEL7.9 running on zVM 7.1 with VMTAPE. > > A vmtape mount command successfully mounts a tape and “gives” the tape > drive > to Linux. Linux promptly detaches the drive. > > I thought it was due to udev rules, but I don’t see what’s wrong. I thought > maybe it was related to blacklisted device numbers, but cio_ignore shows > nothing is blacklisted. > > How can I get more information about why the tape drive is detached? > > The udev rules look specific to IBM drives, and these are Secure Agent > drives…maybe no rules covers it so Linux says “oh no you don’t, you’re not > bringing that in here”? :-) > > How can I see the device info in order to make a suitable udev rule? > > #udevadm monitor > > monitor will print the received events for: > > UDEV - the event which udev sends out after rule processing > > KERNEL - the kernel uevent > > > > KERNEL[192616.914861] add /devices/css0/0.0.0061 (css) > > KERNEL[192616.914901] add /devices/css0/0.0.0061/0.0.0478 (ccw) > > UDEV [192616.955020] add /devices/css0/0.0.0061 (css) > > UDEV [192616.963492] add /devices/css0/0.0.0061/0.0.0478 (ccw) > > KERNEL[192617.916677] remove /devices/css0/0.0.0061/0.0.0478 (ccw) > > KERNEL[192617.916699] remove /devices/css0/0.0.0061 (css) > > UDEV [192617.917073] remove /devices/css0/0.0.0061/0.0.0478 (ccw) > > UDEV [192617.917191] remove /devices/css0/0.0.0061 (css) > > > > > > > > The above kernel/udev events happen when I vmtape mount --vol <x> > > The tape is mounted, attached to linux then immediately removed/detached > > > > The relevant rules file I have is: > > #cat 99-vmt_event.rules > > SUBSYSTEM=="ccw", ACTION=="add", RUN+="/usr/bin/vmtuevent attach %k" > > #SUBSYSTEM=="ccw", ACTION=="remove", RUN+="/usr/bin/vmtuevent detach %k" > > KERNEL=="[nr]tibm[0-9]*", ACTION=="add", KERNELS=="[0-9A-Fa-f.]*", > RUN+="/usr/bin/vmtuevent mount %b %n" > > #KERNEL=="[nr]tibm[0-9]*", ACTION=="remove", RUN+="/usr/bin/vmtuevent > umount > %n" > > #KERNEL=="btibm[0-9]*", ACTION=="remove", RUN+="/usr/bin/vmtuevent umount > %n" > > > > I commented out the remove items and restarted the server…. the remove > events still happened. > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, send email > to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit > http://www2.marist.edu/htbin/wlvindex?LINUX-390 > > -- > This electronic communication and the information and any files > transmitted > with it, or attached to it, are confidential and are intended solely for > the use of the individual or entity to whom it is addressed and may > contain > information that is confidential, legally privileged, protected by privacy > laws, or otherwise restricted from disclosure to anyone else. If you are > not the intended recipient or the person responsible for delivering the > e-mail to the intended recipient, you are hereby notified that any use, > copying, distributing, dissemination, forwarding, printing, or copying of > this e-mail is strictly prohibited. If you received this e-mail in error, > please return the e-mail to the sender, delete it from your computer, and > destroy any printed copy of it. > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or > visit > http://www2.marist.edu/htbin/wlvindex?LINUX-390 > ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www2.marist.edu/htbin/wlvindex?LINUX-390
