Deep Dive into Enterprise IT
EMC has several product lines for different use cases in enterprise data storage. Like may other IT solutions, the website is clouded with marketing terms and slogans, and is purposefully not technical. This makes it difficult for technical staff to grasp the advantage of its product in a glimpse. I personally have to know their … Read moreEMC Isilon
Overview In 2015, Brendan Gregg posted two great articles on Netflix blog: Linux Performance Analysis in 60 seconds, and Linux Perfomrance Tools. They have great value when I was in a urgency to spot performance issues. The articles cover the essential tools for performance troubleshooting, including: We will dive into each of them in the … Read morePerformance Analysis
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
When speaking about memory there are a few concepts that I had to wrap my head around. I’m hence putting them together for future reference. The fine details should be covered in any university course on computer architecture. To keep it simple, I’m only covering a high level in Linux. Much of the content below … Read moreHow is memory managed in Linux