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xcp-performance-tuning.adoc

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xcp-performance-tuning.html
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Performance tuning (NFS only)

Performance tuning

For XCP NFS, after planning the migration by using the show and scan commands, you can migrate data.

Note
 When you are performing data migration as a non-root user, a root user can perform the following step.

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
Note
 For a non-root user, the setting must be performed by a root user.