0

I have a XEN-4.4 server, running an Ubuntu 14 client with Samba 4.3.11-Ubuntu active directory.

I manage it using a Windows 10 client running Active Directory User and Computers.

I have a backup XEN server, with identical logical volumes configured, and an identical /etc/xen/sambaADserver.cfg file

I installed and configured DRBD to clone the main's XEN server's "SambaADserver" logical volume to the backup XEN server.

DRBDADM_BUILDTAG=GIT-hash:\ 5474c321d80250cc61d851220503fdc739490ce9\ build\ by\ pbuilder@marvin\,\ 2016-01-04\ 12:36:34
DRBDADM_API_VERSION=1
DRBD_KERNEL_VERSION_CODE=0x080403
DRBDADM_VERSION_CODE=0x080902
DRBDADM_VERSION=8.9.2rc1

If I use dd to manually clone the Samba AD logical volume from the main XEN server to the backup, poweroff "sambaADserver" and then xl create sambaADserver on the backup - it runs fine and Samba AD works fine.

But with DRBD cloning the logical volume, when I poweroff the main "sambaADserver" and start it on the backup - it seems to start fine (I can login to it, service samba-ad-dc reports running, etc.) ... however, the domain controller does not seem to work. I.e. when I try to start Active Directory User and Computers - I get the following error...

enter image description here

If I wait long enough, the error changes to one of "The RPC server is not running" ... instead of the "The server is not operational" message.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.