similar to: Xen 3 High Availability ways

Bonjour, J''aimerai mettre en place un cluster sous Xen ou XenServer avec 2 serveurs dell R 710. J''aimerai pouvoir monter un cluster en utilisant l''espace disque entiere des 2 serveurs cumulés ainsi que la mémoire Quelles sont vos retour d''expériences et vos configurations? Merci d''avance Cordialement Mat

Hi, I think this would be the best forum, let me know if not. I am in the middle of writing fencing scripts for Citrix XenServer virtual machines (specifically for use with Redhat Clustering, but will also work from pacemaker etc) and I noticed that XCP uses the same XenAPI (from what I can tell). Just wondering if someone would be able to test the scripts on XCP and let me know if they work.

Hi everyone, I need some help to setup my configuration failover system. My goal is to have a redundance system using Xen + DRBD + Corosync + Pacemaker On Xen I will have one virtual machine. When this computer has network down, I will do a Live migration to the second computer. The first configuration I will need is a crossover cable, won''t I? It is really necessary? Ok, I did it. eth0

I noticed recently that there is no real easy way to get the kernel driver for blktap working in mainline. I''ve pulled down the source from Daniel Stodden''s linux git tree on xensource, but it looks like it''s for debian and I''m running Fedora 14, so I''m trying to sort it out. I run the 3.1.x kernel and don''t want to go back to the 2.6.32 that

Hi everybody, what are the current options to get an Asterisk-system high available? Using two servers as active/passive with DRBD, Pacemaker/Corosync works very good, there are no quality issues of the voice quality, even not on high loaded servers and no problems with a lot of small packages. But for this you need two systems for every Asterisk-system, what is not "economic" in any

Gerald Galster via dovecot schrieb: > mail1.yourdomain.com <http://mail1.yourdomain.com> IN A 192.168.10.1 > mail2.yourdomain.com <http://mail2.yourdomain.com>?IN A 192.168.20.1 > > mail.yourdomain.com <http://mail.yourdomain.com> ?IN A 192.168.10.1 > mail.yourdomain.com <http://mail.yourdomain.com> ?IN A 192.168.20.1 > > > mail1/mail2 is for

Dear all, I have sent this problem earlier but maybe its not detail, here I try to write more detail. I hope anybody can help me to point out the problem. First of all I used Ubuntu 12.04 x64 both for domain0 and domainU with modification to run under xen hypervisor and work with remus. I follow and configured the remus with this notes

Dear all, Again, I have some question here and I hope some one have experience how to do it. I have Xen 4.2.1 installed from sources and working with XM toolstack. I will use this xen in order to run Remus high availability with DRBD. Does any one know about openvswitch integration with xm toolstack, since Xen wiki only confirm XCP have natively support openvswitch

Hello, I want to do live migration of virtual machine on xen using fedora.SO what are the steps to have the live migration possible. _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users

Hi, I want to upgrade from 8.0 to 8.1 but yum update does not work. Still 8.0 Probably the cause is that I compiled DRBD myself because it was not available for 8.0 when I set up the machine. Now yum update says: Error: ?Problem 1: cannot install the best update candidate for package drbd-pacemaker-9.11.0-1.el8.x86_64 ? - nothing provides pacemaker needed by

Hi all, As many of us, I'm trying to find a way to have a failover solution for a Samba domain. The actual choice has been (because of hardware cost) to have only 1 physical xen-based server (ubuntu 14.04) that do (dom0) : - DHCP server (LAN) - NTP server - firewall - proxy - DNS server Then 4 VMs running for: - Samba Domain controller - Samba Domain member (file server) - Apache2 server -

Dear List, i''m experimenting with remus with the following setup. dom0: - Debian Squeeze - Jeremy''s 2.6.38.48 kernel - xen 4.1.2 recompiled from sid - DRBD for block device backend domU - Debian Squeeze Remus is working fine unless i try to give more than 1 core to the domU. Here''s the error from remus when i''m trying to enable it for an SMP domU:

Hello, What is the recommended way to offer high availability to Guests? For example, let host1, host2 and host3 be libvirt and KVM/Qemu enabled. If I start a guest in host1, how can I guarantee that it will stay online if host1 goes down? GlusterFS, for example, would take care of storage; but what about CPU and RAM? How can this be accomplished? Thank you for any feedback or comment in

hello all, my vm (windows server 2008) keep crashing? 2011-09-21 15:00:45.924: 1355: info : libvirt version: 0.9.6 2011-09-21 15:00:45.924: 1355: error : virSysinfoRead:465 : internal error Failed to find path for dmidecode binary 2011-09-21 15:05:43.873: 1349: warning : qemuDomainObjTaint:1128 : Domain id=1 name='IIS' uuid=a02e41a9-9f4d-d94f-43a6-995b1ca6d37d is tainted:

Hi, I want to combine all the above mentioned technologies. The Linbit pages warn not to use the drbd: VBD with HVM DomUs. This page however: http://publications.jbfavre.org/virtualisation/cluster-xen-corosync-pacemaker-drbd-ocfs2.en (thank you Jean), simply puts two DRBD devices in dual primary mode and starts Xen DomUs while pointing to the DRBD devices with phy: in the DomU config files.

Hi all, could somebody point me to what is considered a sound way to offer Xen guests on a two node DRBD cluster in combination with Pacemaker? I prefer block devices over images for the DomU''s. I understand that for live migration DRBD 8.3 is needed, but I''m not sure as to what kind of resource agents/technologies are advised (LVM,cLVM, ...) and what kind of DRBD config

Hi, I''m doing my master research and I need to adapt remus code. Now... I wanna get the checkpoint size (memory + disk) on each period. Does someone know what function does this? I think some *fd *object''s function in remus code could just get the memory size. Does someone help me? Thanks _______________________________________________ Xen-devel mailing list

Hi, list, I'm going to deploy postfix + dovecot + CephFS( as Mail Storage). Basically I want to use two servers for them, which is kind of HA. My idea is that using keepalived or Pacemaker to host a VIP, which could fail over the other server once one is down. And I'll use Haproxy or Nginx to schedule connections to one of those server based on source IP( Session stickiness),

One of the cluster nodes (XS 5.6 SP2/not master) became unresponsive to XAPI calls being sent from a CloudStack management server. In the past, a simple xe-toolstack-restart would do the trick but the script timed out while restarting the XAPI daemon. I found the process and first tried to use a simple kill command but the process was in a "defunct" state. I tried a kill -9 but no joy.

I am running a two-node web cluster on OCFS2 via DRBD Primary/Primary (v8.3.8) and Pacemaker. Everything seems to be working great, except during testing of hard-boot scenarios. Whenever I hard-boot one of the nodes, the other node is successfully fenced and marked ?Outdated? * <resource minor="0" cs="WFConnection" ro1="Primary" ro2="Unknown"