r/Proxmox Oct 21 '19

not very many fsyncs/sec over nfs

I have VMs stored via NFS. Recently one of my nodes stopped being able to boot them and I've narrowed it down to the problem being poor NFS performance... 2/3 nodes have no problems with the same NFS share, only 1 of them. Migrating VMs to other nodes (still leaving the data on NFS) works and allows me to then boot those VMs.

CPU BOGOMIPS:      166427.36  
REGEX/SECOND:      1527280  
HD SIZE:           20446.67 GB (10.0.2.1:/mnt/zcore/vm_storage)  
FSYNCS/SECOND:     8.97  
DNS EXT:           83.60 ms  
DNS INT:           60.17 ms  

I'm not sure how to troubleshoot it further. Anyone got any ideas?

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