[ovirt-users] Re: oVirt and NetApp NFS storage

Hi, we have netapp nfs with ovirt in production and never experienced an outage during takeover/giveback .. - the default ovirt mount options should also handle little NFS timeout (rw,relatime,vers=3,rsize=65536,wsize=65536,namlen=255,soft,nolock,nosharecache,proto=tcp,timeo=600,retrans=6,sec=sys) - but to tune it little up you should set disk timeout inside your guest VMs to at least 180 and than you are safe example: |cat << EOF >>/etc/rc.d/rc.local # Increasing the timeout value for i in /sys/class/scsi_generic/*/device/timeout; do echo 180 > "\$i"; done EOF | KR On 18.04.19 10:45, klaasdemter(a)gmail.com wrote: > Hi, > > I got a question regarding oVirt and the support of NetApp NFS > storage. We have a MetroCluster for our virtual machine disks but a > HA-Failover of that (active IP gets assigned to another node) seems > to produce outages too long for sanlock to handle - that affects all > VMs that have storage leases. NetApp says a "worst case" takeover > time is 120 seconds. That would mean sanlock has already killed all > VMs. Is anyone familiar with how we could setup oVirt to allow such > storage outages? Do I need to use another type of storage for my > oVirt VMs because that NFS implementation is unsuitable for oVirt? > > > Greetings > > Klaas > _______________________________________________ > Users mailing list -- users(a)ovirt.org > To unsubscribe send an email to users-leave(a)ovirt.org > Privacy Statement: https://www.ovirt.org/site/privacy-policy/ > oVirt Code of Conduct: > https://www.ovirt.org/community/about/community-guidelines/ > List Archives: > https://lists.ovirt.org/archives/list/users@ovirt.org/message/TSJJKK5UG57... -- Ladislav Humenik System administrator / VI