Hello,

the Linux Cluster Management Console (LCMC) makes it quite easy to setup a 
DRBD/Pacemaker cluster.
http://lcmc.sourceforge.net/

Christoph

----- Ursprüngliche Mail -----
> Von: "Stefan Bader" <stefan.ba...@canonical.com>
> An: cmita...@thomas-krenn.com
> Gesendet: Donnerstag, 24. April 2014 10:35:01
> Betreff: [Bug 1185756] Re: drbd8-utils not compatible with linux-lts-raring 
> kernel in 12.04
> 
> @Andreas, that particular error is fixed by the test packages (see
> comment #60). There could be one in conjunction with pacemaker which
> reports an error about "drbdadm syncer" not being a valid command.
> Unfortunately I don't think anyone who is running a pacemaker cluster
> really can afford to help debugging as that causes disruptions.
> 
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1185756
> 
> Title:
>   drbd8-utils not compatible with linux-lts-raring kernel in 12.04
> 
> Status in “drbd8” package in Ubuntu:
>   Invalid
> Status in “drbd8” source package in Precise:
>   Fix Released
> 
> Bug description:
>   Request for SRU:
>   [Impact]
>   DRBD will not work (hang) on fresh install using Ubuntu 12.04.3 media, and
>   will stop working on sites where the Raring Enablement Stacks is manually
>   installed as the API between older and newer drbd kernel modules has
>   changed.
> 
>   [Fix]
>   The current version of drbd8 utils in Saucy/Raring can be compiled with
>   legacy utils enabled (basically drbdadm and drbdsetup) and automatically
>   switches to use the legacy version when an older kernel module is found.
>   Comparing the code of those two legacy tools showed them to be mostly the
>   same (except some things that actually look like bug fixes).
>   I only found two small issues, one was the init.d script which was changed
>   to use a new command of drbdadm to activate resources. This would fail if
>   drbdadm fell back to the legacy version. So I picked the shell function
>   that the current util uses and verified that this still works with the new
>   binary.
>   The other problem was the default config file which contained a new open
>   which would cause the legacy util to fail. It does not seem to be a
>   required one in the new tools to commenting it out by default seems to
>   work in both cases, too.
>   Lastly (this did not seem to be a real issue) the legacy tools claimed to
>   be a version 3.8.10 while the the code really looked like the 3.8.11
>   version we have in Precise. Since that also matches the version number of
>   the drbd module in Precise I modified the legacy tools version to be
>   3.8.11.
> 
>   [Test Case]
>   For testing compatibility with the Precise 3.2 based kernels, either just
>   install the prepared package and verify everything still works as before
>   (before installing any HWE kernel). Or if already having installed a HWE
>   kernel and experiencing the issue, boot into the 3.2 kernel before
>   installing the proposed package (or follow the downgrade instructions
>   before booting back).
> 
>   To test functionality with HWE kernels, install the Raring kernel in
>   Precise, install/configure DRBD: you get "No response from the DRBD
>   driver! Is the module loaded?". With the proposed backport the mirror
>   continues to work. Only for switching back to an older kernel a
>   special procedure must be followed (see comment #21):
> 
>   http://www.drbd.org/users-guide/s-downgrading-drbd84.html
> 
>   ---
> 
>   I've just installed linux-generic-lts-raring on 12.04.2 and my drbd device
>   stoped working.
>   Seems like drbd8-utils is not compatible with DRBD 8.4 in Kernel 3.8.
>   I see that we can't upgrade the package since this would break
>   compatibility with the older Kernels in Precise.
> 
>   But since the new Plans for the LTS-Enablement Stack [1] there should
>   be a package like drbd8-utils-lts-raring. And the dependancies should
>   be resolved automatically with apt.
> 
>   kind regards
> 
>   [1] https://wiki.ubuntu.com/Kernel/LTSEnablementStack
> 
>   ProblemType: Bug
>   DistroRelease: Ubuntu 12.04
>   Package: linux-image-3.8.0-22-generic 3.8.0-22.33~precise1
>   ProcVersionSignature: Ubuntu 3.8.0-22.33~precise1-generic 3.8.11
>   Uname: Linux 3.8.0-22-generic x86_64
>   ApportVersion: 2.0.1-0ubuntu17.2
>   Architecture: amd64
>   Date: Thu May 30 11:53:13 2013
>   InstallationMedia: Ubuntu-Server 12.04.1 LTS "Precise Pangolin" - Release
>   amd64 (20120817.3)
>   MarkForUpload: True
>   SourcePackage: linux-lts-raring
>   UpgradeStatus: No upgrade log present (probably fresh install)
> 
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/drbd8/+bug/1185756/+subscriptions
>

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https://bugs.launchpad.net/bugs/1185756

Title:
  drbd8-utils not compatible with linux-lts-raring kernel in 12.04

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