On 04/05/18 18:30, Bryan Banister wrote:
You also have to be careful with network utilization… we have some very hungry NFS clients in our environment and the NFS traffic can actually DOS other services that need to use the network links. If you configure GPFS admin/daemon traffic over the same link as the SMB/NFS traffic then this could lead to GPFS node evictions if disk leases cannot get renewed. You could limit the amount that SMV/NFS use on the network with something like the tc facility if you’re sharing the network interfaces for GPFS and CES services.
The right answer to that IMHO is a separate VLAN for the GPFS command/control traffic that is prioritized above all other VLAN's. Do something like mark it as a voice VLAN. Basically don't rely on some OS layer to do the right thing at layer three, enforce it at layer two in the switches.
JAB. -- Jonathan A. Buzzard Tel: +44141-5483420 HPC System Administrator, ARCHIE-WeSt. University of Strathclyde, John Anderson Building, Glasgow. G4 0NG _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
