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On SSDs – Lifespans, Health Measurement and RAID

 | October 12, 2012 |  Posted In: MySQL

Solid State Drive (SSD) have made it big and have made their way not only in desktop computing but also in mission-critical servers. SSDs have proved to be a break-through in IO performance and leave HDD far far behind in terms of Random IO performance. Random IO is what most of the database administrators would […]

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Setting up XFS on Hardware RAID — the simple edition

 | December 16, 2011 |  Posted In: MySQL

There are about a gazillion FAQs and HOWTOs out there that talk about XFS configuration, RAID IO alignment, and mount point options.  I wanted to try to put some of that information together in a condensed and simplified format that will work for the majority of use cases.  This is not meant to cover every […]

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EC2/EBS single and RAID volumes IO benchmark

 | August 6, 2009 |  Posted In: Benchmarks

During preparation of Percona-XtraDB template to run in RightScale environment, I noticed that IO performance on EBS volume in EC2 cloud is not quite perfect. So I have spent some time benchmarking volumes. Interesting part with EBS volumes is that you see it as device in your OS, so you can easily make software RAID […]

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