Control Network bandwidth I/O with rsync

Copying few 100 GB data from one system to another system using rsync can cause lots of issues:

• Clog network
• Cause very High CPU on system
• Can result in higher bandwidth utilization that allow
• Can potential make you NFS mounts stale due to High CPU on NFS server.

This is because  rsync does a lots of disk I/O and network I/O. So its important to control the network bandwidth so that the entire system doesn’t die or become unresponsive?

Limit Nework I/O bandwidth

The –bwlimit option limit I/O bandwidth. You need to set bandwidth using KBytes per second. For example, limit I/O banwidth to 1000KB/s  almost 10MB/s

rsync -avz --bwlimit=1000 /path/to/source/ remoteservername:/path/to/destination/

 

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Category: Software, Technology