Many in the IT industry seem to enjoy arguing exactly what does and does not
constitute a cloud service. As I mentioned in my post on the controversy over
private cloud services, I do not feel that these arguments are productive. We
should focus on results and business value instead of arguing about
semantics. However, the current crop of cloud storage solutions have many
important differences from traditional SAN and NAS storage, something that
seems to surprise many end users I meet. Cloud storage capacity is not your
fathers blocks and files!
Primary, Secondary, and Tiered Storage
Most IT infrastructures contain a wide variety of storage devices, but these
have traditionally been divided into two categories:
Primary or production storage serves active applications and is accessed
randomly. The primary category includes most familiar direct-attached disks
(DAS), s... (more)
Much discussion in the cloud computing world has focused on a simple
question: Is a private cloud infrastructure worthy of the name? It's been
posed in many ways, with some going so far as claiming that there is no such
thing as a private cloud. Although discussions like these are all too common
in many areas, the question really amounts to little more than counting
angels dancing on pin heads. The key issue is whether private cloud-style
infrastructure can deliver real benefits like public clouds can.
First, let's set out some definitions:
The draft NIST definition, perhaps the ... (more)
As I discussed in my previous post, What Makes Cloud Storage Different from
Traditional SAN and NAS?, today's cloud storage is unique from the SAN and
NAS (and even CAS) that has gone before. Beyond the cost and flexibility
benefits inherent in public cloud computing resources of all sorts, cloud
storage is unique in its openness, programmability, and the possibilities it
opens for distribution and collaboration.
These compelling benefits, along with an explosion of cloud hype, have led
every company with a product even remotely "cloudy" to jump into the market.
In my corner of ... (more)
My youngest daughter used to have trouble with her animals. Whenever she saw
a giraffe, she would say "zebra" and whenever she saw a zebra she would say
"giraffe!" Although an adult would never make that mistake, one can
understand why a child would: She was new to these names, and they were
entirely arbitrary words. Besides, both are quadrupeds with bizarre
coloration and patterns. But my daughter definitely knew a horse when she saw
Private Clouds and SSPs: Horses and Zebras
Today's cloud storage world can be equally confusing to the uninitiated.
Long-time IT folks rememb... (more)
As we plummet down into Gartner's "trough of disillusionment", the cloud
skeptics are making their voices heard. Although my professional focus is at
the forefront of the cloud storage wave, I can not disagree with the content
of articles with sensational headlines like "Cloud Storage: It's Strictly For
Airheads" and "Why Cloud Storage Use Could Be Limited in Enterprises". The
authors are doing exactly what everyone should be doing: Questioning the
viability and suitability of cloud storage in the enterprise.
The truth is, although I'm not the "cloud police", not all managed stora... (more)