This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:
apport-collect 1647067
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1647067
Title:
Dangling UDEV links after removing FC LUNs
Status in udev package in Ubuntu:
New
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
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/udev/+bug/1647067/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
