similar to: Xen and SAN : snapshot XOR live-migration ?

Displaying 20 results from an estimated 10000 matches similar to: "Xen and SAN : snapshot XOR live-migration ?"

2010 Jun 14
49
iSCSI and LVM
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
2011 Sep 09
17
High Number of VMs
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
2010 Feb 27
17
XEN and clustering?
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
2010 Mar 08
4
Error with clvm
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
2014 Feb 12
3
Right way to do SAN-based shared storage?
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?
2010 Jan 14
8
XCP - GFS - ISCSI
Hi everyone! I have 2 hosts + 1 ISCSI device. I want to create a shared storage repository and both hosts use together. I wont use NFS. prepared sr: xe sr-create host-uuid=xxx content-type=user name-label=NAS1 shared=true type=iscsi device-config:target=xxxx device-config:targetIQN=xxxx hosts see the iscsi device: scsi4 : iSCSI Initiator over TCP/IP scsi 4:0:0:0: Direct-Access NAS
2009 May 04
1
local disk FC san CLVM + migration of virtual machines
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
2008 Nov 20
27
lenny amd64 and xen.
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?
2009 Apr 15
32
cLVM on Debian/Lenny
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
2012 Aug 02
1
XEN HA Cluster with LVM fencing and live migration ? The right way ?
Hi, I am trying to build a rock solid XEN High availability cluster. The platform is SLES 11 SP1 running on 2 HP DL585 both connected through HBA fiber channel to the SAN (HP EVA). XEN is running smoothly and I''m even amazed with the live migration performances (this is the first time I have the chance to try it in such a nice environment). XEN apart the SLES heartbeat cluster is
2006 Oct 12
5
AoE LVM2 DRBD Xen Setup
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| | |
2011 Jan 11
1
libvirt and shared storage SAN Fiber Channel
Hi, I'm looking information about using libvirt with san (fiber channel) based storage and googling for a while i don't see anything about it. I send this email in order to get advices about libvirt and shared storage We use here, for 3 years now, 8 linux centos server connected to an hitachi FC SAN (multipath devices). Each server run Xen dom0 and use SAN LUNs to store Virtual machine
2007 Nov 13
2
lvm over nbd?
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
2012 Apr 22
1
problems with PV snapshots
Hello, I have a Centos 6.2 clsuter with a CLVM partition on which I have a GFS2 file system. The problem rises when I make a snapshot from my FC NetAPP FAS2020. After I make the snapshot (it is a rw snapshot) of my LUN, I am not able to mount it from any of my cluster nodes, because the Physical Volume is seen two times one time on the standard LVM partition and the other time on the snapshot
2006 Apr 25
14
Xen Partition Performance
Hello, I''m setting up a Xen system since I have diferent choices to create the domU''s partitions: raw partition, lvm, files. I''ve done some tests with hdparm and it all seems to be the same. Can anyone, please, share with me what if the best method. Best regards, Luis _______________________________________________ Xen-users mailing list
2008 May 06
7
Disable memory balloon in dom0
Is there any reason why I would not want to set dom0-min-mem to 0 or to what I set dom0_mem on my kernel line? Setting to 0 or setting to the same value as dom0_mem disables memory balloon correct? I cant seem to think of a reason why I would want memory ballooning. Also setting dom0-min-mem should that be done in xend-config.sxp or on the kernel command line? -- Nick Anderson
2010 Nov 12
4
Opinion on best way to use network storage
I need the community''s opinion on the best way to use my storage SAN to host xen images. The SAN itself is running iSCSI and NFS. My goal is to keep all my xen images on the SAN device, and to be able to easily move images from one host to another as needed while minimizing storage requirements and maximizing performance. What I see are my options: 1) Export a directory through NFS.
2008 Nov 06
0
SAN (Shared LUN) with CLVM
Hi@all System: 2 Server nodes connected to a SAN storage (shared LUNs). Shared storage holds a Volume group (lvm2) with all my hvm guests. Live migration works nice. But snapshots from logical volumes only usable, when i first deactivate logical volume on the second node - otherwise errors in metadata came up and snapshot is broken/inconsistent. both xen 3.3 are installed on ubuntu 8.04. can
2013 Jan 20
10
iscsi on xen
I wonder if someone can point me in right directions. I have two dell servers I setup iscsi so I have four 2 tb hard drives and i had used lvm to create one big partiton and share it using iscsi. How I go about assigning sections of iscsi for virtual hard drives . should go about assigning Should I export the whole 8TB as one iscsi and then use lvm to create smaller virtual disk. Or should I
2011 Jan 19
8
Xen on two node DRBD cluster with Pacemaker
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