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We would like to use _two_ DRBD devices for the "show" als recommened in older documents on this page. Usually one is primary on one node and secondary on the other and vice versa. primary/secondary secodary/primary If one machine needs service we would have to switch to: primary/primary...

We went into strong troble when installing PVE2.1 on a new machine. As soon there was some load the machine got slow and finally frozen after slowly getting killed. BUG: soft lockup - CPU#0 stuck for 70s! [events/0:35] I had a look at the clocksource the kernel was using since it reported...

We don't use a blank bridge...would be an idea. How do you start such bridge? On some interfaces we use bridges without IP, but we have to start them by hand:-(( We used IPCop 1.x since ~2006 but we went into some difficulties and finally moved to Endian-Firewall (Community) a few days ago. We...

I did some UDP-packet-loss testing using higher loads on all 4 links which connect our PVE cluster machines. One of the links is exclusively used for DRBD usually. One machine is a dual XEON the other a Single PhenomX6 using latest Intel Ethernet boards. I increased buffering of kernel to get...

I have four interfaces and three bridges running and would like to add further interfaces and bridges. BUT I have to activate them without stopping service of the running VMs. Is there a solution to get them run without loosing the vmtab-connections to the VMs. A short interruption of the...

I did a very bad thing which was causing instability and crashes of the whole cluster. It was fully my fault and only additionaly triggering of hidden bugs. I configured both nodes to do the backups on the disks of the other node to be able to restart the services really soon if one nodes...

Re: DRBD/LVM migration doesn't work any longer for new machines The basic problem is what happens when split brain happens while having LVM/DRBD machines running on both nodes. Now finally to the HA -> "as short as possible" change question: Is there a solution for DRBD/LVM which doesn't...

Re: DRBD/LVM migration doesn't work any longer for new machines Entering DRBD-Handler informs regarding split brain condition... Anytime a split happens each node sends out a mail to default mail address. resource r0 handlers { split-brain "/usr/lib/drbd/notify-split-brain.sh root"...

I have had issues with backup too. In past I was backing up two nodes to an enterprise NAS and have had backup failures like the above, too. NAS is an ugly SMB share. Sometimes a Snapshot was left off, too. Sometimes targz worked forever. Probably it's not a good idea to use the NAS für storing...

Please delete this thread... I missed a cron job I tuned with size 8192/ bwlimit 10000 which made me confusing. It works like this. No questions left... I'm using two PVE servers running local (lvm/raid) storage and a part of the storage is DRBD shared storage. I managed to offer an nfs4...

Re: DRBD/LVM migration doesn't work any longer for new machines Please don't get me wrong! I'm really happy with PVE and like to give feedback to further enhance it. The DRBD-Mailing list is not the right place to ask how to reboot the PVE-Master or PVE-Node as intended by its makers (using...

Re: DRBD/LVM migration doesn't work any longer for new machines Hmmm.. One thing is to understand the risks, one thing is to get a warning, and the third thing is preventing PVE to migrate to a no longer shared device. Isn't there the chance to stop the migration or make it fail with any...

Re: DRBD/LVM migration doesn't work any longer for new machines rzsvxxxx:~# cat /proc/drbd version: 8.3.4 (api:88/proto:86-91) GIT-hash: 70a645ae080411c87b4482a135847d69dc90a6a2 build by root@oahu, 2010-04-15 10:24:43 0: cs:WFConnection ro:Primary/Unknown ds:UpToDate/DUnknown C...

Re: DRBD/LVM migration doesn't work any longer for new machines Again more details: The working machines have LVMs on both nodes, as I would expect. The non-working machines have LVMs only on the master node. In my understanding the cluster sync of the lvm-volumes doesn't work any longer. How...

DRBD/LVM migration doesn't work any longer for new machines Thanks for the link, I'll look closer. Btw: My Win2008R2 migrates both directions (AMD/Intel) without trouble and without changing anything. More detailed to the above problem: The old machines work like the W2008R2 above, I...

I have had a closer look at the logs: Regarding the the SAMBA/VFS issue there are some posts which recomend to disable "opportunistic locking" via echo 0 > /proc/fs/cifs/OpLockEnabled (works until reboot). I'll check if it works for me. =============== My kernel Log shows me tons of: Aug 30...

Migration worked fine for me last week, but I there are issues now. I'm using KVM via LVM/DRBD and local storage (*.raw, qcow2). I added the following block, maybe it helps to identify a mayor issue. Currently the cluster doesn't work really smoth... I'm using Nehalem(Intel) and PhenomX4(AMD)...

Topic matches my problem, in detail doesn't, though. If a VM hangs in STOP and can't no longer be killed by the Webinterface while other machines/KVM/PVE is fully vital and running: How to find the right process to "kill -9" it. Or is there a better way to identify the KVM process to a vmid...

That's what's happing to me, too. I now understood >shared< means "copy off, both nodes see the same files". I simply changed the config /etc/pve/storage.cfg on the master. It got synced to the slave. And it works Ist this a correct way?

Where is the file exactly used for? Yesterday I generated the file and entered bwlimit: 20400 because the backup actually takes>12 hours and I would basicly like to limit backup to the night. Today it took as long as yesterday. Is /etc/vzdump.conf used as a template? This means I have to...