Disk I/O Monitoring on the Asus RT-AC66U Router

The Asus RT-AC66U, like many home routers that are on the market today, allow you to connect a USB drive to one of its onboard USB ports and share this disk out to your network.  Via the RT-ACC66U, you can share your NAS disk via CIFS or NFS. My configuration has a 1TB unmirrored drive used … Continue reading Disk I/O Monitoring on the Asus RT-AC66U Router

Redhat I/O Scheduler Configuration in a Virtual Machine.

The Linux kernel controls disk I/O scheduling, and is responsible for its optimization. One of the ways that it does this is via an I/O elevator to reorder and schedule pending I/O requests in order to minimize the time spent moving the disk head. This reduction in movement results in a reduction in disk seek time which in turn, maximizes hard disk throughput.