similar to: Error with clvm

I currently have a few CentOS 5.2 based Xen clusters at different sites. These are built around a group of 3 or more Xen nodes (blades) and some sort of shared storage (FC or iSCSI) carved up by LVM and allocated to the domUs. I am "managing" the shared storage (from the dom0 perspective) using cman+clvmd, so that changes to the LVs (rename/resize/create/delete/etc) are

I'm trying to set up SAN-based shared storage in KVM, key word being "shared" across multiple KVM servers for a) live migration and b) clustering purposes. But it's surprisingly sparsely documented. For starters, what type of pool should I be using?

Hi - Is there someone around who successfully got cLVM on Debian/Lenny working? I was wondering if I was the only one facing problems with... Thanks in anticipation, -- Olivier Le Cam Département des Technologies de l''Information et de la Communication CRDP de l''académie de Versailles _______________________________________________ Xen-users mailing list

Hi list. I am dealing with DRBD (+GFS as its DLM). GFS configuration needs a CLVMD configuration. So, after syncronized my (two) /dev/drbd0 block devices, I start the clvmd service and try to create a clustered logical volume. I get this: On "alice": [root at alice ~]# pvcreate /dev/drbd0 Physical volume "/dev/drbd0" successfully created [root at alice ~]# vgcreate

Hi. I''m using Xen on RHEL cluster, and I have strange problems. I gave raw volumes from storage to Xen virtual machines. With windows, I have a problem that nodes don''t see the volume as same one.... for example: clusternode1# clusvcadm -d vm:winxp clusternode1# dd if=/dev/mapper/winxp of=/node1winxp clusternode2# dd if=/dev/mapper/winxp of=/node2winxp clusternode3# dd

Hi Guys, I'm using centos 6.5 as guest on RHEV and rhcs for cluster web environment. The environtment : web1.example.com web2.example.com When cluster being quorum, the web1 reboots by web2. When web2 is going up, web2 reboots by web1. Does anybody know how to solving this "fence loop" ? master_wins="1" is not working properly, qdisk also. Below the cluster.conf, I

I'm desparately looking for more ideas on how to debug what's going on with our CLVM cluster. Background: 4 node "cluster"-- machines are Dell blades with Dell M6220/M6348 switches. Sole purpose of Cluster Suite tools is to use CLVM against an iSCSI storage array. Machines are running CentOS 5.8 with the Xen kernels. These blades host various VMs for a project. The iSCSI

Hi, I''m using xen on two-node redhat cluster (CVS devel version), using lvm as storage backend. redhat cluster is used to synchronize LVM metadata (using clvmd) and as storage for domain configs and dom-U kernels (with gfs). Latest version of redhat cluster works with xen-2.0.4, but not with xen-2.0-testing. ccsd failed to start on 2.0-testing. Anyone knows what the problem is? I

This is an x86_64 system that I just updated from 4.2 to 4.3 (including the csgfs stuff). When I watch the bootup on the console, I see an error: lvm.static: symbol lookup error: /usr/lib64/liblvm2clusterlock.so: undefined symbol: lvm_snprintf This error comes immediately after the "Activating VGs" line, so it appears to be triggered by the vgchange command in the clvmd startup

Hi, I'm trying to configure Red Hat GFS but have problems starting CLVMD on the second node of a 3-nodes cluster. I can start ccsd, cman, and fenced successfully, and clvmd on any other nodes first time. ------------------------- CenOS 4.4 Kernel: 2.6.9-42.0.3.ELsmp [root at server2 ~]# cman_tool nodes Node Votes Exp Sts Name 1 1 3 M server3 2 1 3 M server4 3

Hi all, I have installed rhcs on a CentOS 4.4 server with clvmd. When server reboots display a segmentation fault on line 504 in /etc/rc.d/rc.sysinit file, here: if [ -x /sbin/lvm.static ]; then 500 if /sbin/lvm.static vgscan --mknodes --ignorelockingfailure > /dev/null 2>&1 ; then 501 action $"Setting up Logical Volume Management:"

Hi, [Context : ubuntu 11.11 64bits, cman, clvmd, gfs2, ctdb, samba, likewise-open, all running fine except...] I've setup ctdb to manage public_addresses (to manage one virtual ip actually), and I've explicitely told smb.conf that netbios name = foobar_cluster I've done that *after* I've manage to make samba, likewise-open and AD to work nicely together. I guess now all the

For quite some time I?ve been using FreeNAS to provide services as a NAS over ethernet and SAN over Fibre Channel to CentOS 7 servers each using their own export, not sharing the same one. It?s time for me to replace my hardware and I have a new R720XD that I?d like to use in the same capacity but configure CentOS 7 as a Fibre Channel target rather than use FreeNAS any further. I?m doing

Hello everybody, I am in the process of setting up a really cool xen serverfarm. Backend storage will be an LVMed AoE-device on top of DRBD. The goal is to have the backend storage completely redundant. Picture: |RAID| |RAID| |DRBD1| <----> |DRBD2| \ / |VMAC| | AoE | |global LVM VG| / | \ |Dom0a| |Dom0b| |Dom0c| | |

Hi, I''m curious about how you guys deal with big virtualization installations. To this date we only dealt with a small number of VM''s (~10)on not too big hardware (2xquad xeons+16GB ram). As I''m the "storage guy" I find it quite convenient to present to the dom0s one LUN per VM that makes live migration possible but without the cluster file system or cLVM

Hi, i am setting up a cluster of kvm hypervisors managed with libvirt. The storage pool is on iscsi with clvm. To prevent that a vm is started on more than one hypervisor, I want to use a lockmanager with libvirt. I could only find sanlock as lockmanager, but AFSIK sanlock will not work in my setup as I don't have a shared filesystem. I have dlm running for clvm. Are there lockmanager

I have a system with a large LVM VG partition. I was wondering if there is a way i could share the partition using nbd and have the nbd-client have access the LVM as if it was local. SYSTEM A: /dev/sda3 is a LVM partition and is assigned to VG volgroup1. I want to share /dev/sda3 via nbd-server SYSTEM B: receives A''s /dev/sda3 as /dev/nbd0. I want to access it as VG volgroup1. I am

Please tell me if I am wrong : Xen needs LVM to perform domU snapshots and snapshots must be performed by dom0. By the way, a LVM volume group should not be used by more that one kernel at the same time. So if we use a SAN storage, one volume group should be activated on only one server and deactivated on the others. But if we do that, it should not be possible to perform live migration of

Guys, I have setup my hard disc with 3 partitions: 1- 256MB on /boot; 2- 2GB on / for my dom0 (Debian 5.0) (eth0 default bridge for guests LAN); 3- 498GB exported with vblade-persist to my network (eth1 for the AoE protocol). On dom0 hypervisor01: vblade-persist setup 0 0 eth1 /dev/sda3 vblade-persist start all How to create a CVLM VG with /dev/etherd/e0.0 on each of my dom0s? Including the

Hi Everyone, I am going to get a storage server which will be connected to my Xen hosts via iSCSI/Ethernet. I wish to use LVM for the DomU disks. The storage server will have a RAID10 array, and 2 Xen hosts will connect to this (Each will have a 50% share of the RAID10 array, space wise). What is the best way to go about this? Should I: a) Split the RAID10 array into 2 partition on the