similar to: DRBD iSCSI failover while running Xen guests

Hi, I've setup two server A + B (debian etch) with drbd + heartbeat in active/passive mode. If the primary server A fails, the shared storage is mounted on B, the virtual ip A-vip moves to the new primary B and samba is started by heartbeat. This works well, but I'm not sure which samba files should be identical on both server. Both have a dedicated machine account at the moment.

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, I apologize in advance if this strays too far from the etiquette on the Xen userlist, however the amount of help, brainpower and experience I''ve received from this list with Xen and "peripheral" related issues (i.e. DRBD) have been worth more than it''s weight on gold and I''m hoping someone will be kind enough to give me a "best practices"

Hello, We''ve been using Xen on several servers with direct-attached storage for a number of years. Now we''re looking to buy more Xen servers and re-purpose two of the older ones as SANs to hold the domU filesystems, in order to achieve redundancy and live migration ability. I''m looking for comments on our proposed design. SAN 1 - existing server w/ 4 GB, 2x

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

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My NFS setup is a heartbeat setup on two servers running Active/Passive DRBD. The NFS servers themselves are 1x 2 core Opterons with 8G ram and 5TB space with 16 drives and a 3ware controller. They're connected to a HP procurve switch with bonded ethernet. The sync-rates between the two DRBD nodes seem to safely reach 200Mbps or better. The processors on the active NFS servers run with a load

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 all, In threads posted by I believe Jonathan Tripley I promised to post my new XEN HA setup. Hope it can be of some use to some people. In this particular case I''m forced to use SLES 10SP3 with XEN 3.2, which excludes the possibility of using things like cLVM (which I don''t think I need anyway). So: Storage: I use two HP ML370 G5 machines with DRBD and heartbeat on

Dear All, Previously we have used CentOS4.4 release with Supported Cluster Suite and DRBD 8.0.0 Active/passive (failover) We have build the DRBD 8.0.0 Source in CentOS4.4 Setup We have configured the DRBD Resource with default OS installed LVM (/dev/mapper/vgroot-LogVol00 and /dev/mapper/vgroot-LogVol01) Partition and its working fine Partition Tables are listed below

Hi We've got drbd going between 2 nodes:) ATM there is un-partitioned space on each node but (we think) they are syncing OK. It looks as though it has synced the whole partition (2GB) from the primary node 1 to the other node: node 1 smb1:/home/steve # cat /proc/drbd version: 8.4.4 (api:1/proto:86-101) GIT-hash: 3c1f46cb19993f98b22fdf7e18958c21ad75176d build by SuSE Build Service 1:

Hi List, I don''t know if this is something that is a simple matter of opinion or if there are strong reasons to take one route or the other. I have dom0 nodes with dedicated bond interfaces that connect to a storage traffic-only VLAN. Currently I have a few domUs running that have large-ish volumes on the iSCSI SAN, and to present the volumes I''m connecting the dom0s to the

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Up until now, I have been using drbd for file custers with great success. Yes, it is a PITA, and sometimes you can get annoying sincronization issues (mostly on lab situations). Now I have been considering giving gnbd (with cs/gfs) a try. Do any of you ever crossed this path ? Any comparisons or comments ? TIA, - -- Rodrigo Barbosa "Quid

Dear All, I''m totally new to DRBD + XEN over iSCSI but I need to configure this scenario in order to buy the right hardware. Our department will provide us with an iSCSI target which will be replicated in its own to a secondary iSCSI SAN (probably they will use DRBD). This target will be used, in our ideas, to replicate our own iSCSI san, that we are going to buy. We will probably

Hi all. I am currently working for a hosting provider in a 100+ linux hosts' environment. We have www, mail HA solutions, as storage we mainly use NFS at the moment. We are also using DRBD, Heartbeat, Corosync. I am now gathering info to make a cluster with: - two virtualization nodes (active master and passive slave); - two storage nodes (for vm files) used by mentioned virtualization nodes

Hi, Has anyone ever actually implemented a replicating iSCSI SAN using CentOS? I saw directions here: http://wiki.centos.org/HowTos/Ha-Drbd It looks doable, but I am not the strongest linux person and would like to hear if anyone has tried and if there any caveats. Also, I noticed that these directions are for CentOS 5. Is it pretty much the same for CenOS 6? Lastly, this might sound crazy,

Hi everybody, our university uses a Samba 3.6.9 server as PDC for a windows domain on a single physical server (external LDAP on another server is used). To get some redundancy up running a second physical machine was bought, which is exactly the same as the one running. Now I?m searching for the best way to get the job done. The first thought was to build a HA-Cluster with Corosync/Pacemaker

Hi all, We're looking at deploying a small Xen cluster to run some of our smaller applications. I'm curious to get the lists opinions and advice on what's needed. The plan at the moment is to have two or three servers running as the Xen dom0 hosts and two servers running as storage servers. As we're trying to do this on a small scale, there is no means to hook the

I''ve been brainstorming... I want to create a 2-node HA active/active cluster (In other words I want to run a handful of DomUs on one node and a handful on another). In the event of a failure I want all DomUs to fail over to the other node and start working immediately. I want absolutely no single-points-of-failure. I want to do it with free software and no special hardware. I want

Hello all, has someone worked with DRBD (http://www.drbd.org) for HA of mail storage? if so, does it have stability issues? comments and experiences are thanked :) Thanks, Rodolfo.