Hi, we have also seen such cases, it seems that sometimes (when the controller / device is broken in special ways), device mapper keeps the volume locked. You can check as follows: 1) Check if lvs / pvs / vgs show some undefined device. In that case, you may have to flush the lvmeta cache: pvscan --cache Check again if zapping works after this, if not, continue. 2) Check major and minor number of the device: $ ls -la /dev/sdi brw-rw----. 1 root disk 66, 96 13. Jan 18:14 /dev/sdi => In this case, it would be 66:96 3) Check if device mapper still has it locked: $ dmsetup ls --tree ... ceph--1f6780e6--b120--4876--b674--aa3337847114-osd--block--1325f49b--fead--40ba--957e--ec6b2968d456 (253:1) └─ (66:96) ... => In this case, it is still mapped! 4) Attempt to remove it: $ dmsetup remove ceph--1f6780e6--b120--4876--b674--aa3337847114-osd--block--1325f49b--fead--40ba--957e--ec6b2968d456 => If this fails, you may have to use --force (if the disk does not accept any read/write anymore, this might happen). Please make absolutely sure this is the correct disk before using force. 5) If after this, lvs / pvs / vgs show some undefined device, you may have to flush the lvmeta cache: pvscan --cache Latest after these steps, zapping should work, at least we never encountered anything worse (apart from hangs with a broken RAID controler firmware, where we needed to eject and reinsert the disk and rescan devices to make the controller lock go away). Cheers, Oliver Am 19.09.20 um 14:49 schrieb Marc Roos:
[@~]# ceph-volume lvm zap /dev/sdi --> Zapping: /dev/sdi --> --destroy was not specified, but zapping a whole device will remove the partition table stderr: wipefs: error: /dev/sdi: probing initialization failed: Device or resource busy --> failed to wipefs device, will try again to workaround probable race condition stderr: wipefs: error: /dev/sdi: probing initialization failed: Device or resource busy --> failed to wipefs device, will try again to workaround probable race condition
I can see where it is busy, at least not in lsof _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io