Recent content by plewka

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...