What is old, is new again

Way back in the pre-history of the internet (really DARPA-net/BITNET days), while dinosaur programming languages frolicked freely on servers with “modern” programming systems and data sets, there was a push to go from a static linking programs to a more modular dynamic linking. The thought processes were that it would save precious memory, not having […]

A nice shout out in ComputerWeekly.com about @scalableinfo #HPC #storage

See the article here. Surely though, widespread adoption is just a matter of time. With its PCIe connectivity, literally slotting in, NVMe offers the ability to push hyper-converged utility and scalability to wider sets of use cases than currently. There are some vendors that focus on their NVMe/hyper-converged products, such X-IO (Axellio), Scalable Informatics, and […]

There are real, and subtle differences between su and sudo

Most of the time, sudo just works. Every now and then, it doesn’t. Most recently was with a build I am working on, where I got a “permission denied” error for creating a directory. The reason for this was non-obvious at first. You “are” superuser after all when you sudo, right? Aren’t you? Sort of. […]

A new (old) customer for the day job

Our friends at MSU HPCC now are the proud owners of a very fast/high performance Unison Flash storage system, and a ZFS backed high performance Unison storage spinning disk unit. Installed first week of Jan 2017. As MSU is one of my alma mater institutions, I am quite happy about helping them out with this […]

Another itch scratched

So there you are, with many software RAIDs. You’ve been building and rebuilding them. And somewhere along the line, you lost track of which devices were which. So somehow you didn’t clean up the last build right, and you thought you had a hot spare … until you looked at /proc/mdstat … and said … […]