Solid State Disk (SSD) technology is one of the hottest IT areas in 2012. The
promise to eliminate storage IO bottlenecks and increase application
performance, enable server virtualization, enable data center growth, and
reduce IT costs has prompted 83% of all IT departments to consider SSD. But
those planning an SSD deployment face a variety of deployment choices.
Moreover, choosing poorly can yield large expense, disruption to existing IT
environments, and a complex new set of storage management tasks.
Join Brian Garrett, Vice President at the Enterprise Strategy Group, Inc. and
Peter Velikin from VeloBit, Inc. for a comprehensive overview of the key
considerations you must make when building your SSD strategy. This webinar is
intended to help IT executives make wise decisions. You will see first-hand
research on the actual vs. perceived benefits organi... (more)
Whether ‘tis nobler in the mind to suffer the slings and arrows of your IT
manager or to take up cache against a sea of data. With apologies to Bill
Shakespeare, the IT Dog is discussing two different cache write policies:
write through and write back. Let me take a run at telling you what they are,
why they are different and what you need to think about when you decide what
policy to use.
Cache Write Through
This is the easier to explain and understand of the two policies discussed
here. Cache write through is like having your cake and eating it too. Data is
written into cache ... (more)
This blog continues the a series which present test results of extensive
testing performed at Velobit to investigate SSD IO bandwidth when SSDs are
operated in a simulated enterprise environment. The test set up and
procedure is documented in the first blog post of this series which can be
found by clicking here.
Test SSD: Intel 320 SATA based SSD
Figure 1: IO Bandwidth for Intel 320 Drive: a) random read b) sequential read
Figure 2: IO Bandwidth for Intel 320 Drive: a) random write b) sequential
Figures 1 and 2 shows the results for the Intel 320 SSD. Like previous
Hey there; the IT Dog back with some color commentary on our VDI experience.
When I first heard the name, I thought VDI was the latest model Volkswagen
diesel, but as the guy with the suit explained in the last blog, VDI is
Virtual Desktop Infrastructure. Now that you know what VDI means, I am sure
you know all there is to know about it, right? Well, I wish it was that
easy for me.
Where Do I Begin?
I guess I’ll start from the beginning. At my company, my IT guys were at
their wits end trying to manage the 1000 or so desktops, spread out over four
different locations, with va... (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)