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Performance tuning (NFS only)

01/04/2021 Contributors Download PDF of this page

After planning the migration with the show and scan commands, you can migrate data.

For the optimal performance and reliability, NetApp recommends setting the following Linux kernel TCP performance parameters in /etc/sysctl.conf on the XCP Linux client host. Run sysctl -p or the reboot command to commit the changes:

net.core.rmem_default = 1342177
net.core.rmem_max = 16777216
net.core.rmem_max = 16777216
net.core.wmem_default = 1342177
net.core.wmem_max = 16777216
net.ipv4.tcp_rmem = 4096 1342177 16777216
net.ipv4.tcp_wmem = 4096 1342177 16777216
net.core.netdev_max_backlog = 300000
net.ipv4.tcp_fin_timeout = 10