Re: [ovirt-users] storage issue's with oVirt 3.5.1 + Nexenta NFS

Hi, how about Load, Latency, strange dmesg messages on the Nexenta ? You are using bonded Gbit Networking? If yes, which mode? Cheers, Juergen Am 20.04.2015 um 14:25 schrieb Maikel vd Mosselaar: > Hi, > > We are running ovirt 3.5.1 with 3 nodes and seperate engine. > > All on CentOS 6.6: > 3 x nodes > 1 x engine > > 1 x storage nexenta with NFS > > For multiple weeks we are experiencing issues of our nodes that cannot > access the storage at random moments (atleast thats what the nodes think). > > When the nodes are complaining about a unavailable storage then the load > rises up to +200 on all three nodes, this causes that all running VMs > are unaccessible. During this process oVirt event viewer shows some i/o > storage error messages, when this happens random VMs get paused and will > not be resumed anymore (this almost happens every time but not all the > VMs get paused). > > During the event we tested the accessibility from the nodes to the > storage and it looks like it is working normal, at least we can do a normal > "ls" on the storage without any delay of showing the contents. > > We tried multiple things that we thought it causes this issue but > nothing worked so far. > * rebooting storage / nodes / engine. > * disabling offsite rsync backups. > * moved the biggest VMs with highest load to different platform outside > of oVirt. > * checked the wsize and rsize on the nfs mounts, storage and nodes are > correct according to the "NFS troubleshooting page" on ovirt.org. > > The environment is running in production so we are not free to test > everything. > > I can provide log files if needed. > > Kind Regards, > > Maikel > > > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users