** Package changed: udev (Ubuntu) => systemd (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1647067
Title: Dangling UDEV links after removing FC LUNs Status in systemd package in Ubuntu: Confirmed Bug description: We're using Q-Logic QLE2562 Fibre Channel adapters (qla2xxx driver) against a HPE 3PAR 7400c storage array in an OpenStack environment. The OpenStack 3PAR driver manages volume attachments from the array to the servers. There is 4 path multipath to every volume. As the LUNs are removed, sometimes udev does not remove all links, particularly in /run/udev/links and /dev/disk/by-path. The symptoms are multiple records in one by-path directory under /run/udev/links, broken links to no longer attached luns in dev/disk/by-path and links between wrong LUNs and scsi devices there. OpenStack relies on these links. When another volume is attached using a LUN that has these leftover links and it happens that it is the first of the 4 paths, OpenStack incorrectly identifies the volume and attaches the same volume to multiple instances, leading to data loss. What could be causing this behavior? Ubuntu version 14.04 Linux version Ubuntu 4.4.0-47.68~14.04.1-generic 4.4.24 udev 204-5ubuntu20.19 --- ApportVersion: 2.14.1-0ubuntu3.21 Architecture: amd64 CustomUdevRuleFiles: 20-3par-unmap.rulez DistroRelease: Ubuntu 14.04 InstallationDate: Installed on 2015-10-01 (429 days ago) InstallationMedia: Ubuntu-Server 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805) MachineType: HP ProLiant DL380 Gen9 Package: udev 204-5ubuntu20.19 PackageArchitecture: amd64 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-47-generic root=/dev/mapper/hostname--vg-root ro ProcVersionSignature: Ubuntu 4.4.0-47.68~14.04.1-generic 4.4.24 Tags: trusty UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' Uname: Linux 4.4.0-47-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 11/03/2014 dmi.bios.vendor: HP dmi.bios.version: P89 dmi.chassis.type: 23 dmi.chassis.vendor: HP dmi.modalias: dmi:bvnHP:bvrP89:bd11/03/2014:svnHP:pnProLiantDL380Gen9:pvr:cvnHP:ct23:cvr: dmi.product.name: ProLiant DL380 Gen9 dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1647067/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
