How NFS works

I touched on NFS in several previous postings, and here is a deeper dive of this particular protocol. NFS is built on top of Remote Procedure Call (RPC) and therefore it is important to understand RPC first. In fact NFS is one of the most prominent user of RPC and the best example for learning … Read moreHow NFS works

Storage Nitty-Gritty 1 of 5 – Disk and RAID

On my trip I have been through several pre-sales discussions on storage. Therefore I’m taking this opportunities to write up a series of postings deep diving into storage technologies. In this first section, we lay out the foundation of storage technology, from physical device to RAID, focusing on the concepts. Some contents are excerpts from … Read moreStorage Nitty-Gritty 1 of 5 – Disk and RAID

Basics of Linux OS

These are the things quite confusing or abstract while I was at school but now makes lots of sense after many years working with different flavours of OS. GPL and BSD as software license types The main difference is that BSD (Berkeley Software Distribution) is a permissive (non-protective) license, while GPL(GNU General Public License) is … Read moreBasics of Linux OS