Re: tips setting up DRBD and hearbeat to create high-availability virtual machines
Hi scar, On 14/06/10 04:31, scar wrote: can anyone comment on any extra care or knowledge that may be needed to cluster virtual machines, or should it not be any different than clustering 'regular' partitions? It might be worth having a look at Ganeti, it sounds exactly like the solution you're looking for, although I haven't tried it myself yet: http://www.lancealbertson.com/2010/05/creating-a-scalable-virtualization-cluster-with-ganeti/ -- Paul Elliott, UNIX Systems Administrator Computing Service, University of York -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: tips setting up DRBD and hearbeat to create high-availability virtual machines
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Ante Karamatić @ 06/06/2010 08:00 PM: On 07.06.2010 00:27, scar wrote: we have two identical, physical servers with identical hardware. i wanted to set them up with several virtual machines (www, ftp, mail, etc.) and then use DRBD and Heartbeat to make the VM's highly available. You can't use heartbeat as a cluster resource manager any more. You should use pacemaker or redhat-cluster-suite for that. Tutorial for pacemaker: https://wiki.ubuntu.com/ClusterStack/LucidTesting These examples does't cover managing VMs with pacemaker, but they will get you started with drbd. thanks so much! i will get DRBD set up with pacemaker, instead. can anyone comment on any extra care or knowledge that may be needed to cluster virtual machines, or should it not be any different than clustering 'regular' partitions? -BEGIN PGP SIGNATURE- iEYEAREIAAYFAkwVonoACgkQXhfCJNu98qAtjwCghm4Ansh3tvjueV15X8x9m70H OD8AoL1tPuvn4inobavS4J/gOHYfABkO =styG -END PGP SIGNATURE- -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
tips setting up DRBD and hearbeat to create high-availability virtual machines
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 hey list, i am pretty green to setting up linux servers but, it's what i've fallen into at the moment. i really like ubuntu-desktop and it looks like ubuntu-server has everything we need, so i jumped right in. we have two identical, physical servers with identical hardware. i wanted to set them up with several virtual machines (www, ftp, mail, etc.) and then use DRBD and Heartbeat to make the VM's highly available. i have already installed ubuntu-server onto both machines separately, using similar settings and partitioning. i tasked both with 'openssh server' and 'virtual machine host' for now. i created a RAID-1 set using md and allocated most of it to LVM. the rest of the free space on the volume group i was going to use for the various VM's. (this is still the beginning, so i am willing to redo any of that, given there is good enough reason.) so, what's next? do i provision out my VM's on server #1 and then setup DRBD to mirror those partitions onto server #2? i understand from the server manual that DRBD can be used to mirror a partition, but there are probably more intricacies i need to know about if that partition (logical volume, in this case) contains a virtual machine, no? thanks. -BEGIN PGP SIGNATURE- iEYEAREIAAYFAkwMINsACgkQXhfCJNu98qAquACeNEB5A4KfdSkGTz6yX+thVAP8 nZkAn2tZ9OLMHc/zNugAax9M+S5vg9ox =OKE4 -END PGP SIGNATURE- -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: tips setting up DRBD and hearbeat to create high-availability virtual machines
On 07.06.2010 00:27, scar wrote: we have two identical, physical servers with identical hardware. i wanted to set them up with several virtual machines (www, ftp, mail, etc.) and then use DRBD and Heartbeat to make the VM's highly available. You can't use heartbeat as a cluster resource manager any more. You should use pacemaker or redhat-cluster-suite for that. Tutorial for pacemaker: https://wiki.ubuntu.com/ClusterStack/LucidTesting These examples does't cover managing VMs with pacemaker, but they will get you started with drbd. -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
