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Eucalyptus and OpenStack: A Discussion with Marten Mickos
In response to my recent post “Ubuntu, OpenStack, Eucalyptus: When Open-Source Competes with Open-Source”, Marten Mickos, CEO of Eucalyptus Systems (and previously of MySQL) offered to discuss the Eucalyptus strategy with me in the “hope … that we would NOT confuse you.” I took him up on it, and a lively and rather interesting discussion…
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PaaS Categories: Technical
Infrastructure-as-a-Service (IaaS) is fairly well-known by now. Whether Amazon, OpenStack, Eucalyptus or any proprietary offerings, the basics are all the same: virtual machines, key-value buckets etc. Not so for Platform-as-a-Service (PaaS). There are lots of vendors, but the architectures and basic assumptions behind their products differ widely — and those differences are less well-known than…
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Platform as a service and redundancy: Nagging questions | ZDNet
Larry Dignan at ZDNet makes similar points on the prospects of bolting PaaS to IaaS as I did in my piece on the EC2 outage and its implications on Amazon’s PaaS strategy.
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VMWare, Identity and User-Centricity in the Enterprise
Lots of good commentary on VMWare’s new Horizon App Manager today, which is what their Tricipher acquisition seems to have turned into. The phrase that struck me the most — thus this post — was Krishnan‘s description at CloudAve: a user-centric management service for accessing cloud applications from any device. It clearly is user-centric: it…
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There Is No Multi-Tenant Architecture: There Are Three!
I’ve heard the term “multi-tenancy” hurled at somebody as an attack about once too often now. Could we at least agree that there are several different kinds (I count three) of multi-tenancy, and they have different tradeoffs? 1. Application-level Multi-Tenancy Salesforge, Gmail, and most SaaS businesses come to mind: they run all of their customers…