From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (ext-mx08.extmail.prod.ext.phx2.redhat.com [10.5.110.32]) by smtp.corp.redhat.com (Postfix) with ESMTPS id A66375D757 for ; Tue, 25 Dec 2018 05:52:56 +0000 (UTC) Received: from prv1-mh.provo.novell.com (prv1-mh.provo.novell.com [137.65.248.33]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id D0E28C04DBEE for ; Tue, 25 Dec 2018 05:52:54 +0000 (UTC) Message-Id: <5C21C5B0020000F90004A3CB@prv1-mh.provo.novell.com> Date: Mon, 24 Dec 2018 22:52:48 -0700 From: "Gang He" Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Disposition: inline Subject: [linux-lvm] lvmetad cannot handle md device with big minor number Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="utf-8" To: linux-lvm@redhat.com Hello Guys, I create a md device with a big minor number, and add this md device as PV disk. Then, pvdisplay can not display this PV. But, if I disable lvmetad via changing the configuration setting "use_lvmetad = 1" to "use_lvmetad = 0", pvdisplay can display this PV, then I can do the next things, e.g. create a VG on this PV, etc. It looks that lvmetad cannot handle md device with big minor number (e.g. /dev/md606099). If I create a md device like "/dev/md0", lvmetad can work. The whole reproduce steps are as below, 1) # mdadm -C /dev/md606099 -l 1 -n 2 /dev/sdb2 /dev/sda2 2) # pvcreate /dev/md606099 Physical volume "/dev/md606099" successfully created. # lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 160G 0 disk ├─sda1 8:1 0 120G 0 part ├─sda2 8:2 0 30G 0 part │ └─md606099 9:606099 0 30G 0 raid1 └─sda3 8:3 0 10G 0 part sdb 8:16 0 500G 0 disk ├─sdb1 8:17 0 120G 0 part ├─sdb2 8:18 0 30G 0 part │ └─md606099 9:606099 0 30G 0 raid1 └─sdb3 8:19 0 350G 0 part 3) # pvdisplay WARNING: Device for PV GIAOmw-SOu7-8ZaH-qWBw-MwfR-Jb6j-wxSM1a not found or rejected by a filter. <<== here, the PV can not be displayed 4) # lvm version LVM version: 2.02.180(2) (2018-07-19) Library version: 1.03.01 (2018-07-19) Driver version: 4.39.0 Configuration: ./configure --host=x86_64-suse-linux-gnu --build=x86_64-suse-linux-gnu --program-prefix= --disable-dependency-tracking --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64 --libexecdir=/usr/lib --localstatedir=/var --sharedstatedir=/var/lib --mandir=/usr/share/man --infodir=/usr/share/info --disable-dependency-tracking --enable-dmeventd --enable-cmdlib --enable-udev_rules --enable-udev_sync --with-udev-prefix=/usr/ --enable-selinux --enable-pkgconfig --with-usrlibdir=/usr/lib64 --with-usrsbindir=/usr/sbin --with-default-dm-run-dir=/run --with-tmpfilesdir=/usr/lib/tmpfiles.d --with-thin=internal --with-device-gid=6 --with-device-mode=0640 --with-device-uid=0 --with-dmeventd-path=/usr/sbin/dmeventd --with-thin-check=/usr/sbin/thin_check --with-thin-dump=/usr/sbin/thin_dump --with-thin-repair=/usr/sbin/thin_repair --enable-applib --enable-blkid_wiping --enable-cmdlib --enable-lvmetad --enable-lvmpolld --enable-realtime --with-cache=internal --with-default-locking-dir=/run/lock/lvm --with-default-pid-dir=/run --with-default-run-dir=/run/lvm --enable-cmirrord 5) # tb1213-nd1:/sys/dev/block # ll total 0 lrwxrwxrwx 1 root root 0 Dec 25 13:35 11:0 -> ../../devices/pci0000:00/0000:00:01.1/ata1/host0/target0:0:0/0:0:0:0/block/sr0 lrwxrwxrwx 1 root root 0 Dec 25 13:35 253:0 -> ../../devices/pci0000:00/0000:00:04.0/virtio1/block/vda lrwxrwxrwx 1 root root 0 Dec 25 13:35 253:1 -> ../../devices/pci0000:00/0000:00:04.0/virtio1/block/vda/vda1 lrwxrwxrwx 1 root root 0 Dec 25 13:35 253:2 -> ../../devices/pci0000:00/0000:00:04.0/virtio1/block/vda/vda2 lrwxrwxrwx 1 root root 0 Dec 25 13:35 253:3 -> ../../devices/pci0000:00/0000:00:04.0/virtio1/block/vda/vda3 lrwxrwxrwx 1 root root 0 Dec 25 13:35 8:0 -> ../../devices/platform/host2/session1/target2:0:0/2:0:0:0/block/sda lrwxrwxrwx 1 root root 0 Dec 25 13:35 8:1 -> ../../devices/platform/host2/session1/target2:0:0/2:0:0:0/block/sda/sda1 lrwxrwxrwx 1 root root 0 Dec 25 13:35 8:16 -> ../../devices/platform/host2/session1/target2:0:0/2:0:0:1/block/sdb lrwxrwxrwx 1 root root 0 Dec 25 13:35 8:17 -> ../../devices/platform/host2/session1/target2:0:0/2:0:0:1/block/sdb/sdb1 lrwxrwxrwx 1 root root 0 Dec 25 13:35 8:18 -> ../../devices/platform/host2/session1/target2:0:0/2:0:0:1/block/sdb/sdb2 lrwxrwxrwx 1 root root 0 Dec 25 13:35 8:19 -> ../../devices/platform/host2/session1/target2:0:0/2:0:0:1/block/sdb/sdb3 lrwxrwxrwx 1 root root 0 Dec 25 13:35 8:2 -> ../../devices/platform/host2/session1/target2:0:0/2:0:0:0/block/sda/sda2 lrwxrwxrwx 1 root root 0 Dec 25 13:35 8:3 -> ../../devices/platform/host2/session1/target2:0:0/2:0:0:0/block/sda/sda3 lrwxrwxrwx 1 root root 0 Dec 25 13:35 9:606099 -> ../../devices/virtual/block/md606099 <<== this md device Thanks Gang