June 2015 - SCRIBE goes FLASH and gets dynamic tiering

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Upptagningen nedan är på engelska och innehåller en brilliant utläggning av Scale’s Chief Architect Phil White och Scott Loughmiller VP of Engineering där de redogör för nyheter i SCRIBE. Under Virtualization Field Day 5 den 25 Juni 2015 hölls även denna uppdaterade introduktion till Scale HC3 där Scott Loughmiller introducerar oss till Scale och vad som gör HC3 unikt på virtualiseringsmarkanden (tip: SIMPLICITY on every level):

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• Scott at 04:03: A lot of the stuff we talk about is going to sound familiar with Scale, it is going to sound like things you already know of from other products. But there is something a little bit unique, and little bit special in each one of these parts, and when you put them together in concert it makes the whole thing really special. So when you you have that feeling, that this is just like what you already know, ask why it is different, because it is.

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• Phil at 25:23 ”This year we release FLASH friendly VSD’s” A write-back-cache and log based journal for the Virtual Storage Devices (VSD) doing properly aligned IO with ability to coalesce small blocks into large blocks hence making the VSD’s SSD friendly. Thanks to the modularity in SCRIBE the journals are wrapped around already existing VSD’s in the runnnig Scale Cluster. The modular design also offer the ability to having the journal removed at some point in the future if needed. Future RSD placement algorithms such as erasure coding will work seamlessly with these VSD journals as well as the need for improving write-performance of those arise.