Hi Zdenek, Thank for your reply, the bug is opened at https://bugzilla.redhat.com/show_bug.cgi?id=1726524 I feel maybe RHEL lvm2 also has the similar problem. The problem looks to related with multipath disk PV. Thanks Gang -----Original Message----- From: Zdenek Kabelac [mailto:zkabelac@xxxxxxxxxx] Sent: 2019年7月1日 18:23 To: LVM general discussion and development <linux-lvm@xxxxxxxxxx>; Gang He <GHe@xxxxxxxx> Subject: Re: Can't remove the snap LV of root volume on multipath disk PV Dne 01. 07. 19 v 8:31 Gang He napsal(a): > Hello List, > > I am using lvm2-2.02.180 on SLES12SP4, I cannot remove the snap LV of root volume, which is based on multipath disk PV. > e.g. > linux-kkay:/ # lvremove /dev/system/snap_root > WARNING: Reading VG system from disk because lvmetad metadata is invalid. > Do you really want to remove active logical volume system/snap_root? [y/n]: y > device-mapper: reload ioctl on (254:3) failed: Invalid argument > Failed to refresh root without snapshot. > > But, I can remove the snap LV of data volume successfully, e.g. > linux-kkay:/ # lvremove /dev/system/data_snap > WARNING: Reading VG system from disk because lvmetad metadata is invalid. > Do you really want to remove active logical volume system/data_snap? [y/n]: y > Logical volume "data_snap" successfully removed > > If I use the ordinary disk as PV (rather than multipath disk), I cannot encounter this problem (both snap LVs can be removed). > Hi Please open new BZ case and provide full -vvvv traces of failing command and also possibly attache 'dmsetup table' 'dmsetup ls --tree' and 'dmsetup info -c' 'dmsetup status' Regards Zdenek _______________________________________________ linux-lvm mailing list linux-lvm@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
