Early Bird Savings at Cloud Expo
This week, Amazon took a step with EC2 that many had long anticipated: They
announced spot pricing for cloud compute instances. EC2 customers can now
name their own price, and Amazon will bring compute instances up at variable
discount prices according to these "bids". This complements their March 2009
move at the other end of the spectrum, extra-cost reserved instances. This
evolution of the cloud compute market was predicted by many, but Amazon
deserves credit for making it happen.
The obvious next question is whether spot pricing can work for cloud storage.
Although there are cases where spot pricing might make sense, the nature of
data storage trends against this sort of pricing model. Let's explore the
Cloud compute is obviously different from cloud storage: The former deals
with running applicat... (more)
Early Bird Registration at Cloud Expo
Go read that headline again: W. Curtis "Mr. Backup" Preston points out on his
blog that replication is not backup, and we can't disagree.
Keeping alternative copies of data in multiple locations is a great idea,
reducing the risk of data loss and potentially enabling enhanced access, but
it's not a historical data protection (aka, backup) strategy.
Backup requires management of multiple historic copies of a data set.
Clearly, cloud storage in itself isn't backup.
Backup vs. Storage
SNIA defines "backup" thus: [Data Recovery] A collection of da... (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 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)
As discussed last week, cloud storage solutions differ in many ways. They can
be defined by their pricing model (usage-based or capitalized), their
location (on-site or off-site), the granularity of scalability (per-file,
standard unit, or per-system), and whether or not they are multi-tenant. But
one of the less-discussed but much more technically-challenging
differentiators lies in the access method: Some cloud storage systems use a
web protocol-based API for access, while others use conventional storage
protocols like NFS or SMB. Today we will discuss the implications of which... (more)