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At this time I've been forced to switch back to E1000 which works all the time despite its performance. Anyway, I don't really know how to troubleshoot this issue. Any suggestion? Thanks

that's fine, but I think the issue is more related to running kernel in VMs... Is there any way to recompile virtio modules with newer versions? My VMs are currently running latest available kernel from repositories. Regards, Michele

Here's pveversion's output: proxmox-ve-2.6.32: 3.4-163 (running kernel: 2.6.32-41-pve) pve-manager: 3.4-9 (running version: 3.4-9/4b51d87a) pve-kernel-2.6.32-41-pve: 2.6.32-163 pve-kernel-2.6.32-37-pve: 2.6.32-150 lvm2: 2.02.98-pve4 clvm: 2.02.98-pve4 corosync-pve: 1.4.7-1 openais-pve: 1.1.4-3...

Hello, I'm experiencing an annoying issue with virtio networking under linux guests (mostly CentOS 6, 7 and RHEL derivates such as Oracle Linux 6). It happens that after a while (even days) the vm is up and running, it looses connectivity to the network and I need to change NIC to e1000 and...

Hi everybody, I'm going to install proxmox on one node with a FC SAN (I would like to add another node in future), but I just have some concerns about which storage backend to use. I really like ZFS and I would like to use it on my SAN, but I don't have RAM to give it and I'd prefer to use my...

Hello everybody, I'm planning the migration from our current virtual environment from VMware ESXi 5.5 to Proxmox. I need to migrate VMs from main server to a temporary server, install proxmox on the main server, and then move VMs back in there. Since now I have a FC-SAN available, here's what I...

It happened again :( Kernel panic: task txg_syng blocked for 120 seconds. (I just set kernel.hung_task_timeout_secs back to the original value = 120) System did not reboot automatically, and needed to hold down power button to shut it off. Sep 2 03:09:48 pve01 smartd[3130]: Device: /dev/sdb...

Reading around, it seems that most hard drives have 60°C set as the maximum working temperature, so maybe due to high I/O especially during backups (and poor airflow), they overheated leading to some disk malfunction which resulted in kernel panic and consequent reboot. It sounds reasonable...

I'm using the enterprise repository.

Here's my ZFS version: SPL: Loaded module v0.6.4.2-1 ZFS: Loaded module v0.6.4.2-1, ZFS pool version 5000, ZFS filesystem version 5 and kernel version: Linux pve01 2.6.32-40-pve #1 SMP Fri Jul 24 11:16:05 CEST 2015 x86_64 GNU/Linux

Hi, I disabled SLOG device, and I'm not experiencing txg_sync lockups like before, but sometimes it happens that the server reboots without any apparent reason. Probably something this is due to a kernel panic which triggers an automatic reboot (kernel.panic = 5 - /etc/sysctl.conf)...

Ok thank you for the suggestions. I will keep them in mind for the next deployment. Meanwhile I just disabled the SLOG device, and I'll wait until the issue appears again (hopely not :))

Hello, thanks for the reply. So do you think that the SLOG device could be the problem? I'll try to disable it to see if something changes. Anyway what SSD do you suggest to use for caching, as an alternative to Intel whose, from what I see, are the best choice? Maybe Samsung PRO series could...

Nobody helps? :(

Hello, I'm experiencing random system lockups with the following error message: The last system lockup occurred a couple of hours ago, and I figured out the problem has somewhat to do with disk I/O. The only thing I tried to do, is to tweak /etc/sysctl.conf (see at the bottom of this post). I...

Ok, then. I will follow your suggestion. Thanks

Yes I know that I can set the VLAN tag on the VM nic from proxmox GUI, and yes if no tag is specified the VM has full access to the network. Hmm.. you're just saying "put your network on a different VLAN than default one, so you will be able to set the tag accordingly on per nic basis". Am I...

I was pretty sure to be wrong. Well, I have a VM running some UTM software, which can't see more than 4 physical nics, but allows the use of unlimited vlans, so this is one reason. The other reason is: since bridges are trunks by default, this works out of the box, but I don't like the idea...

Hi, thanks for your config file, but I see you're just using a single bridge (vmbr0) for vm connectivity. Probably I didn't have fully understood yet how OVS works (still reading...), but I was looking to see if the following configuration can be made: bond0 -->...

Thanks for your reply. Could you please provide an example of /etc/network/interfaces about tagging with OVS IntPorts? And.. what if I would like to have a bridge with tag=0 (untagged) ? is this possible?