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Storage QoS – How Hard Can It Be?

Following up from yesterday’s post and the comments received, I thought it was worth considering how hard it would actually be to implement quality of service within a storage array. Almost all storage arrays available today (whether physical or virtual) work on the assumption that I/O should be delivered as fast as possible.  This is not an unreasonable premise, especially ... Read More »

Storage QoS In The Cloud

Last year I did some research and wrote up a couple of posts on Cloud Compute performance.  One feature that seems to get left out somewhat is storage I/O performance; the cloud offerings talk about capacity, but rarely reference performance. Recently, I reviewed the options available from the major providers and found two new storage performance offerings. AWS (Amazon Web ... Read More »

Vendor Lock-in with Cloud Storage – Good or Bad?

There have been two interesting and contrasting announcements covering cloud storage in the last couple of weeks.  The first was NetApp, who have announced “NetApp Private Storage for AWS”.  which seems to a proprietary way of replicating data into the AWS cloud.  The second comes from Nirvanix and Violin Memory; Violin have deployed their all-SSD storage appliances into Nirvanix’ public ... Read More »

Amazon Delivers Cloud Archive Storage with Glacier

At the end of August 2012, Amazon Web Services released their latest service offering – a long-term archive service called Glacier.  As a complement to their existing active data access service S3, Glacier provides long term storage for “cold” data – information that has to be retained for a long time but doesn’t require frequent access. What Exactly is Glacier? ... Read More »

Cloud Archiving – Podcast and Article

My latest article and podcast are up on searchstorage.co.uk.  I discuss the use of cloud storage for archiving.  Links are below. Cloud archiving: A viable alternative to in-house archiving systems (Podcast) Cloud archive: The most mature of the cloud storage services (Article)   Read More »

How Viable Is Cloud Storage? Nasuni & Avere Quick View

This week has seen announcements from two companies I’ve been interested in and following for some time. Nasuni Nasuni makes a storage appliance that stores all of a customer’s data in “the cloud”.  It’s available either as a physical device (effectively a server running their software) or as a virtual machine.  What makes their product interesting is that both the ... Read More »