similar to: best shared storage solution ?

On Thu, Dec 17, 2015 at 04:09:17PM +0100, Peter Zijlstra wrote: > On Thu, Dec 17, 2015 at 04:34:57PM +0200, Michael S. Tsirkin wrote: > > On Thu, Dec 17, 2015 at 03:02:12PM +0100, Peter Zijlstra wrote: > > > > > commit 9e1a27ea42691429e31f158cce6fc61bc79bb2e9 > > > > Author: Alexander Duyck <alexander.h.duyck at redhat.com> > > > > Date:

On Thu, Dec 17, 2015 at 04:09:17PM +0100, Peter Zijlstra wrote: > On Thu, Dec 17, 2015 at 04:34:57PM +0200, Michael S. Tsirkin wrote: > > On Thu, Dec 17, 2015 at 03:02:12PM +0100, Peter Zijlstra wrote: > > > > > commit 9e1a27ea42691429e31f158cce6fc61bc79bb2e9 > > > > Author: Alexander Duyck <alexander.h.duyck at redhat.com> > > > > Date:

Il 25-08-2017 08:32 Gionatan Danti ha scritto: > Hi all, > any other advice from who use (or do not use) Gluster as a replicated > VM backend? > > Thanks. Sorry, I was not seeing messages because I was not subscribed on the list; I read it from the web. So it seems that Pavel and WK have vastly different experience with Gluster. Any plausible cause for that difference? > WK

Hello, I configured libvirtd with the sanlock lock manager plugin: # rpm -qa | egrep "libvirt-0|sanlock-[01]" libvirt-lock-sanlock-0.9.4-23.el6_2.4.x86_64 sanlock-1.8-2.el6.x86_64 libvirt-0.9.4-23.el6_2.4.x86_64 # egrep -v "^#|^$" /etc/libvirt/qemu-sanlock.conf auto_disk_leases = 1 disk_lease_dir = "/var/lib/libvirt/sanlock" host_id = 4 # mount | grep sanlock

What he is saying is that, on a two node volume, upgrading a node will cause the volume to go down. That's nothing weird, you really should use 3 nodes. On Wed, Aug 23, 2017 at 06:51:55PM +0200, Gionatan Danti wrote: > Il 23-08-2017 18:14 Pavel Szalbot ha scritto: > > Hi, after many VM crashes during upgrades of Gluster, losing network > > connectivity on one node etc. I would

Hello, I wonder what the "open error -1" / "release open_disk error" messages in sanlock.log actually mean. I saw these messages in the log on a KVM host that rebooted, and after running "/usr/sbin/virt-sanlock-cleanup" on that host. The resources where disks from 2 guests running on another KVM host. So in fact the disks are still in use, bot got cleaned up by

Il 23-08-2017 18:14 Pavel Szalbot ha scritto: > Hi, after many VM crashes during upgrades of Gluster, losing network > connectivity on one node etc. I would advise running replica 2 with > arbiter. Hi Pavel, this is bad news :( So, in your case at least, Gluster was not stable? Something as simple as an update would let it crash? > I once even managed to break this setup (with

Il 23-08-2017 18:51 Gionatan Danti ha scritto: > Il 23-08-2017 18:14 Pavel Szalbot ha scritto: >> Hi, after many VM crashes during upgrades of Gluster, losing network >> connectivity on one node etc. I would advise running replica 2 with >> arbiter. > > Hi Pavel, this is bad news :( > So, in your case at least, Gluster was not stable? Something as simple > as an

Hello, As we know, libvirt sanlock support file type storage. I wonder *if it supports network storage.* I tried *iSCSI*, but found it didn't generate any resource file: Version: *qemu-2.10 libvirt-3.9 sanlock-3.5* 1. Set configuration: qemu.conf: *lock_manager = "sanlock"* qemu-sanlock.conf: *auto_disk_leases = 1disk_lease_dir = "/var/lib/libvirt/sanlock"host_id =

We wan't to setup two Oracle instance and make RAC work on them. Both VM are setup based on libvirt + KVM, we use a lvm lun which formated in qcow2 format and set the shareable properties in the disk driver like this: <disk type='block' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source

On 08/24/2016 06:31 AM, Johan Kragsterman wrote: > > Hi again! > I saw this last week while I was at KVM Forum, but just haven't had the time until now to start thinking about this stuff again ... as you point out with your questions and replies - NPIV/vHBA is tricky and complicated... I always have try to "clear the decks" of anything else before trying to page how this

Hi, I'm trying to put in place a KVM cluster (using clvm and gfs2), but I'm running into some issues with either sanlock or virtlockd. All virtual machines are handled via the cluster (in /etc/cluser/cluster.conf) but I want some kind of locking to be in place as extra security measurement. Sanlock ======= At first I tried sanlock, but it seems if one node goes down unexpectedly,

On 08/08/2013 03:54 AM, Timon Wang wrote: > Anybody have idea on it? > > I tried to set the disk as raw format, and retried the setup process, > but still can't get through. Caveat: I know nothing in particular about Oracle RAC, but... Assuming that RAC uses something like SCSI reservations in order to share the disk, I would guess it doesn't like the disk being on the IDE

Hello, I'm using libvirt and sanlock on qemu-kvm guests. Each guest has it's own Logical Volume for it's root filesystem. Sanlock is configured and working and prevents me from starting the same VM twice on multiple nodes and corrupting it's root filesystem. Each VM's domain XML resides on 2 servers that share the LVM volume group over fiber channel. In testing, I noticed

Anybody have idea on it? I tried to set the disk as raw format, and retried the setup process, but still can't get through. On Fri, Aug 2, 2013 at 1:58 PM, Timon Wang <timonwst@gmail.com> wrote: > We wan't to setup two Oracle instance and make RAC work on them. > Both VM are setup based on libvirt + KVM, we use a lvm lun which > formated in qcow2 format and set the

I have tryied change the disk bus to SCSI, add a SCSI controller whose model is virtio-scsi, still can't setup the RAC instance. I tried to use windows 2008 Failover Cluster feature to setup a a Failover Cluster instead, and I can't find any cluster disk to share between two nodes. So when Failover Cluster is setup, I can't add any Cluster disk to the Failover Cluster. Have I missed

[moderator note: .pngs were stripped to avoid overwhelming the mail server and list recipients with 1M of data] -------- Forwarded Message -------- Date: Wed, 30 Mar 2016 11:25:09 +0200 Message-ID: <20160330112509.Horde.0Oad-ZfkzdZnouXf-VkEmw1@webmailperso.univ-brest.fr> From: villeneu@kassis.univ-brest.fr To: Franky Van Liedekerke <liedekef@telenet.be> Cc: libvirt-users@redhat.com

Commit aa9e0057b19e29f76c9a81f9aebeeb1cb5bf1fdb made the libvirt backend use <shareable/> for the disk of the appliance, since at that time all the instances were using the disk directly. OTOH, commit 3ad44c866042919374e2d840502e53da2ed8aef0 switched to overlays for read-only disks, including the appliance, so effectively protecting the appliance. Because of this, the libvirt backend does

CentOS Errata and Bugfix Advisory 2016:0541 Upstream details at : https://rhn.redhat.com/errata/RHBA-2016-0541.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: 96a4bc7ef0285522786a39d02c0b427656aaa71e1abb779a75c65c2e1c600748 fence-sanlock-3.2.4-2.el7_2.x86_64.rpm

Hi, John, and thank you! This was a very thorough and welcome response, I was wondering where all the storage guys were... I will get back to you with more details later, specifically about multipath, since this needs to be investigated thoroughly. I have, with trial and error method, during the elapsed time, been able to attach the NPIV pool LUN to a virtio-scsi controller, and it seems it