Designed for Solid State
Monday, August 22, 2011 posted by Dave Wright
For the past 20 years, network storage systems have been
designed around spinning disk, with the form factor, performance
characteristics, and reliability profile of the HDD dominating
every architectural and design decision that was made. Many of
these systems with 10-20 year old architectures are now bolting on
solid state disk, which comes with a number of tradeoffs that Adam
previously discussed.
However, today, rather than focus on the problems with traditional
architectures and SSDs, I want to focus on the advantages of a
system designed from the ground up for solid state.
We did just that here at SolidFire. We built one of the first
general-purpose storage systems that has been designed exclusively
for solid state storage. Our use of solid state did not
simply influence small decisions about data layout and I/O
scheduling, but rather drove the entire architecture of the system.
We completely rethought how a storage system could function if you
were to remove disk from the picture, and ended up with a storage
architecture that has very little resemblance to a traditional
SAN.
From the outside, the system may look similar to other scale-out
storage systems, with nodes and drives and iSCSI networking, but
underneath the covers is something so different, it could never be
built with spinning disk.
This fresh approach gives our customers tremendous benefits; such
as increased performance, "hard" fine-grained quality of service
guarantees, in-line deduplication, and reduced SSD
wear. These technology advantages are enabling cloud
service providers to invite mission-critical, performance-sensitive
applications into a cloud infrastructure with greater
confidence.
-Dave Wright, Founder & CEO

