About storage
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 […]
I’ve been trying to help Scalable Informatics customers understand these market realities for a while. Unfortunately, to my discredit, I’ve not been very successful at doing so … and many groups seem to assume supply is plentiful and cheap across all storage modalities. Not true. And not likely true for at least the rest of […]
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 […]
This is a fun one. A customer has quite a collection of all-flash Unison units. A while ago, they asked us to turn on LLDP support for the units. It has some value for a number of scenarios. Later, they asked us to turn it off. So we removed the daemon. Unison ceased generating/consuming LLDP […]
Not what I was hoping for. I may explain more of what I am doing later (less interesting than why I am doing it), but suffice it to say that I’ve got a machine I’ve turned into a VM/container box, so I can build something I need to build. This box has a large RAID6 […]
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. […]
In the process of disconnecting a service we don’t need anymore. So I call their number. Obviously reroutes to a remote call center. One where english is not the primary language. I’m ok with this, but the person has a very thick and hard to understand accent. Their usage and idiom were not American, or […]
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 […]
Time and time again, the day job had been asked to discuss how the solutions are differentiated. Time and time again, we showed benchmarks on real workloads that show significant performance deltas. Not 2 or 3 sigma measurements. More often than not, 2x -> 10x better. Yet … yet … we were asked, again and […]
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 … […]