I just got done sitting in on the Wikibon conference call about storage clusters. Wikibon is an idea that I like: open discussions and content that intends to engage subject matter experts, vendors, analysts and customers.
But noble goals do not make for satisfying group gropes. The call today was a mashup of perspectives and expectations that never came together. I think the problem is that the words "cluster" and "storage" conjure up images that are as consistent among people as ink blot interpretations.
This is going to be Wikibon's challenge. They don't want to control the discussion as much as facilitate it. Unfortunately the storage industry has a serious penchant for willful fragmentation. Its one of the reasons why the vocabulary of storage is so confusing. Anyway, the call ran down many different threads without much fusion of ideas across them. One of the more interesting threads involved a discussion of Google and Amazon style storage, with Robin Harris insinuating that all large companies were going to need to adopt such designs. Hmmmm. Not sure about THAT one. Then there was the usual confusion about whether or not we were talking about clustered file systems or clustered SAN storage and whether or not that meant Fibre Channel and whether or not Fibre Channel had much of a future and yadda yadda yadda. Yikes!
I give Peter Burris a lot of credit for attempting to create a recorded summary out of the preceding discussion. His EMC-centric analysis of the storage universe came through a bit strong, but its not difficult to understand considering his many years of breathing and drinking EMC details and their role in the industry.
EqualLogic sells distributed iSCSI SAN storage systems that are built by adding storage modules that work together in an Ethernet network. We don't call in "clustered" - we don't call it "grid". Its distributed, its modular, its very easy to install and manage and it's performance scales as you add systems to the group. I really believe that the future of storage is already available from EqualLogic, its just that most industry observers have not taken the time to understand it.