Here’s the basic theory behind swap space. Memory is expensive, disk is cheap. Only use the faster memory for active things, and aggressively swap out the less used things. This provides a virtual address space larger than physical/logical memory. Great, right? No. Heres why. 1) swap makes the assumption that you can always write/read to … Read moreStarting to come around to the idea that swap in any form, is evil
This will be fun to watch run … 30T of flash disks cabled up and online. Thanks @scalableinfo! — Chris Dwan (@fdmts) November 5, 2014 Scalable Informatics FastPath Unison for the win!
Scalable’s booth is #3053. We’ll have some good stuff, demos, talks, and people there. And coffee. Gotta have the coffee. More soon, come by and visit us!
For Scalable Informatics Unison product. The whole system: Watching writes go by: Note the sustained 40+ GB/s. This is a single rack sinking this data, and no SSDs in the bulk data storage path. This dashboard is part of the day job’s FastPath product.
This has been an itch we’ve been working on scratching a few different ways, and its very much related to forgoing distro based installers. Ok, first the back story. One of the things that has always annoyed me about installing systems has been the fundamental fragility of the OS drive. It doesn’t matter if its … Read moreUpdated boot tech in Scalable OS (SIOS)
In the last few days, issues around EMC have become publicly known. EMC is the worlds largest and most profitable storage company, and has a federated group of businesses that are complementary to it. The CEO, Joe Tucci, is stepping down next year, and there is a succession “process” going on. Couple this to a … Read moreInteresting bits around EMC
This has been a point of contention for us for years. Our office has multiple network attachments, using Comcast is part of it. This is the main office, not the home office. Latency on the link, as measured by DNS pings, have always been fairly high, in the multiple 2-3ms region, as compared to our … Read moreComcast finally fixed their latency issue
This is one of our engineering prototypes that we had to clear space for. A couple of new features I’ll talk about soon, but you should know that these are 12g SAS machines (will do 6g SATA of course as well). Front of unit: Note the new logo/hand bar. The rails are also brand new, … Read moreSoon … 12g goodness in new chassis
Ok, didn’t see this acquirer coming, but PLX being bought … yeah, this makes sense. Avago looks like they are trying to become the glue between systems, whether the glue is a data storage fabric, or communications fabric, etc. PLX makes PCIe switches and other kit. PCIe switch and interconnection is the direction that many … Read moreM&A: PLX snarfed by … Avago ?
[Update 16-June] We’ve sold the 64 bay FastPath Cadence (siFlash based) , and now we have a few more 60 bay hybrid Ceph and FhGFS units, as well as a 48 bay front mount siFlash. Whats coming in are many of our next gen 60 bay units, with a new backplane design, and we want … Read moreSelling inventory to clear space