NFS was originally designed for trusted environments of a scale that today seems rather modest. The primary design goal was data integrity, not performance, which makes sense as Ethernet of the time ran at 10 Mbps and files and file systems were relatively small. The integrity goal led to a use of s...
Linux has many tools available for troubleshooting some are easy to use, some are more advanced.
I/O Wait is an issue that requires use of some of the more advanced tools as well as an advanced usage of some of the basic tools. The reason I/O Wait is difficult to troubleshoot is due to the fact th...