How IO limits will provide a boost to Shared hosting servers

The beta of IO Limits for CloudLinux 6.x has been released. I/O limits provides the ability to limit read and write operations on a per-customer basis. This feature allows to setup IO throughput for clients as measured in KB/sec. The limit is for both reads & writes, combined, and we set it as a single number for simplicity.

The long-desired feature was years in development and is finally ready. In addition, physical memory limits and limits for the number of processes will be shown. This completes the CloudLinux LVE offering that already features CPU, virtual memory, and concurrent connections limits.

The issues related to I/O are one of the chief contributors to shared hosting downtime. I/O limits should help customers better manage resource usage and improve overall stability of their service in shared hosting environment.


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You can set new IO limits either by using LVE Manager (cPanel only), or from command line. After installing iolimits, make sure that you update lve-utils, lve-stats and lvemanager packages as well. And reboot the server to load new kernel with IO module.

IO limits helps each customer to customize his account. Thus we can see how IO limits will be an advantage to shared hosting servers in the future.

The above is a very rough outline of the shared hosting service we provide, and if you have any questions, we would be happy to talk to you! 🙂

Blog written and edited by :

Kumar K works as a Junior Software Engineer in Bobcares. He joined Bobcares back in February 2012. He loves reading books, watching movies and listening to music in his free time.

Bobcares is a server management company that helps businesses deliver uninterrupted and secure online services. Our engineers manage close to 51,500 servers that include virtualized servers, cloud infrastructure, physical server clusters, and more.