The SSD caching market is on fire. This week, EMC announced VFCache, IBM
announced XIV Gen3 SSD Caching, Flashsoft was acquired by Sandisk, and many
storage vendors acknowledged that flash features in their long-term roadmap.
Activity has certainly picked up. It is interesting to explore what is
causing the rapid development of the SSD caching market.
Here are my 4 key takeaways:
1. Flash has arrived
Reliability: Flash technology (particularly in the SSD form factor) has
matured enough to be used in the 24/7 enterprise environments. Through a
combination of more reliable SSD and better management of data on SSD,
suppliers have managed to create solutions that, while expensive, provide the
bullet-proof reliability required in enterprise environments.
Real results: Businesses have experienced the benefits of higher SSD IOPS in
production environments. Higher SSD perf... (more)
Dr Dog Says “You Need More RAM In Your Cache Diet”
Well, I am not really a doctor, but I play one on TV. You may remember (if
you are old enough) that line from the 1986 Vicks-44 TV commercial. Anyway,
while I may not be a real doctor, I can certainly tell you about why you need
more RAM in you cache diet.
“I Think My Cache Diet Is Great”
If you were happily running your IT system but needed some additional
performance, chances are you turned to some kind of SSD caching solution to
improve performance at a lower cost point than adding more servers or
storage. You went on what I a... (more)
I wear many hats at VeloBit, one of which is to manage the production and
development lab environment for our engineering team. This means that I face
the same basic challenge that all sysadmins face: growing capacity
requirements and a set budget to work with. Luckily, I have an ace up my
sleeve: VeloBit HyperCache, which lets me do more with less. This, combined
with KVM-based virtualization, allows us to keep running without having to
deal with server-sprawl in our labs.
How we use Virtualization at VeloBit
We make extensive use of virtualization for the IT infrastructure at V... (more)
IT Dog coming at you today to talk about SSD devices and why they are not
just for breakfast anymore. Well, SSDs were never really good for breakfast
but they are ideal for replacing traditional storage HDDs in many
applications. Let’s start with some characteristics that make SSDs
unique compared to standard HDDs.
4 Reasons To Be Stoked About SSDs
● SSDs have higher data transfer rate: higher transfer rate and
lower data seek time results in lower latency which means your killer
application runs faster. In contrast, spinning disks are slow and play
hide-and-seek wi... (more)
IT Dog getting down and dirty today because that’s what it is going to
take to deal with the dirty world of “vendor lock-in.” There is
really no way to dress this up and make it smell nice because it just stinks
and although I would roll in something this nasty down at the dog park, I
wouldn’t want you to have to live with the smell.
I read an excellent article by Chris Mellor at The Register discussing the
need to develop a standard for the server flash-storage array interface and
it really got me thinking about the vendor lock in issue.
“What is EMC... (more)