similar to: 1/2 OFF-TOPIC: How to use CLVM (on top AoE vblades) instead just plain LVM for Xen based VMs on Debian 5.0?

I understand that all work is going into xen3, but I had wanted to note that aoe (drivers/block/aoe) is giving me trouble on xen 2.0.6 (so we can keep and eye on xen3). Specifically I can''t see nor export AOE devices. As a quick background on AOE, it is not IP (not routable, etc), but works with broadcasts and packets to MAC addresses (see http://www.coraid.com). (for anyone who

hello ! i try to use a network technology on one single host, which wasn`t designed for that. to give a short overview of what i`m talking about: AoE is just like a "networked blockdevice" (just like nbd/enbd) - but without tcp/ip. AoE kernel driver is the "client end" (see this like an iSCSI initiator) - and an etherblade storage appliance is the "server end"

I ran into an interesting/strange issue today. I still don''t understand what happened, but in know what fixed it. I had a situation where I could only see vblade exported devices from OFF the physical machine. It seemed that if the packets went through two ports of the bridge (instead of one port and the real interface) they got "lost". I sniffed around and failed to

I''ve installed debian lenny amd64, it is frozen now. I''ve install kernel for xen support but it doesn''t start. It says "you need to load kernel first" but I''ve installed all the packages concerning xen, also packages related to the kernel. Perhaps lenny doesn''t support xen anymore? Any solution?

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| | |

Dear all: I''m sorry I crossmail. I try setup aoe-vblade server on netbsd 5.0.2(domU) and I try to do some stress test with for i in {65536}; do dd if=/dev/zero of=/dev/etherd/e?.? bs=4K;done on a Linux box Two Xen dom0 configurations I use: 1. 32bits SuSE Enterprise Linux 11sp1 2.6.32.12-0.7-xen with 32bits Xen 4.0.0_21091_04-0.2.6 2. 64bits Gentoo 2.6.32-xen-r1 with 64bits Xen 4.0.0

Hi people... Here we use Xen 4 with Debian Lenny... We''re using kernel 2.6.31.13 pvops... As a storage system, we use AoE devices... So, we installed VM''s on AoE partition... The "NAS" server is a Intel based baremetal with SATA hard disc... However, sometime I feeling that VM''s is so slow... Also, all VM has GPLPV drivers installed... So, I am thing about

Hello, I have encountered a crash in dom0 kernel while booting a domU from an AOE device. I haven''t seen such crashes when booting from local partitions/ LVM volumes/ loopback file systems. Also I haven''t seen such crash when I did repetitive I/O to these AOE devices. As the call trace of crash indicates the crash is in xenolinux kernel. Also this crash is predictably

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

Hi, We are planning to have LVM being used over a network of 3 h/w machines(500 GB Disk each) Each hardware machine will have 2-3 domUs. Can we store these domUs as a Logical Volumes stored across Network of these 3 machines? Can one DomU exceed the 500 GB (physical drive size) and store say 1 TB of data across the networked Physical Volumes? Has anyone done this before? Thanks and regards,

Hi, I get this error when i try to start clvm (debian lenny) : This is a clvm version with openais # /etc/init.d/clvm restart Deactivating VG ::. Stopping Cluster LVM Daemon: clvm. Starting Cluster LVM Daemon: clvmCLVMD[86475770]: Mar 8 11:25:27 CLVMD started CLVMD[86475770]: Mar 8 11:25:27 Our local node id is -1062730132 CLVMD[86475770]: Mar 8 11:25:27 Add_internal_client, fd = 7

Hi, I'm needing to expand a LUN on my EMC CX4-120 SAN. (Well I already had done it). On this LUN I had a PV of a cLVM VG. Know I need to run pvresize on it. Has anybody done this on a cLVM PV ? I'm trying to rescan the devices, but I can't "see" the new size. And, googling on it I can only find RHEL5.2 responses. Thanks in advance,

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

Hi people. Im new on Xen and I''m looking in how to do a physical migration on Xen. I know that there is a lot of choices (that is the first problem) My environment is simple: 2 physical servers, each one running one instance of XEN. Each host has 2 gigabit cards. One to talk with the world, other to talk between theirselves. I want to run the every vm on the both hosts, if one fail

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

Hello all We are looking into ovirt for several weeks now and i have to say that it looks very promising. Our current environment is based on a lot off shell scripts and xen. We would like to move to ovirt but there are some things we would like to have working before moving. 1. using FC, san and clvm for storage 2. The ability to migrate virtual machines when we have to do maintenance on a

I am trying to get a proof-of-concept type setup going...I have a storage box and 2 xen servers...I am using file based disk that live on the aoe device...i can run the vm from either host without issue...when I run the live migration, the domain leaves the xm list on host 1 and shows up on host 2 (however there is a pause for pings of about 2 minutes?)...after it is on host 2, I can xm console

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

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 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