Potshots at cloud computing demonstrate necessary focus for enterprises
I have good news about cloud computing: Everyone's criticizing it.
Here are just some of the headlines about cloud computing and virtualization that have appeared recently in my inbox from sources such as Network World, Webtorials and NoJitter:
-- Cloud computing: Reality vs. fiction
-- Virtualization: Not as simple as it sounds
-- Are your cloud services secure?
-- Cloud Computing: A Reality Check & Guide to Risk Mitigation
-- Businesses not sold on using public cloud for capacity
That's great stuff! No enterprise technology has ever prospered while it was being emptily hyped. Things only take off once the problems are aired.
One focus of all of this attention is obviously going to be security. (As it is with everything at first. It was a huge issue in the early days of MPLS because it was -- gulp! -- IP.) You'll see jumping-off points in one of the items above about cloud security to white papers, including from vendors like Cisco and Juniper. These papers often deal with the key issue of going beyond perimeters such as firewalls to the whole concept of borderless networks.
One issue, though, that tends not to get enough attention in any technology at first is the matter of Service Level Agreements. Sure, SLAs are often mentioned, and even headlined by vendors in their product announcements. But initial SLAs are often not measured correctly or meaningfully.
In new technology after new technology, we at TC2 and LB3 have seen repeated gaps and weaknesses in SLAs along similar lines. Classic problems include: 1) SLAs for service availability but not true network performance such as application response time; 2) vagueness in appropriate remedies; 3) overly broad definitions of maintenance windows that bump aside any SLA measurement; 4) requiring the customer to make its own notification of below-par performance to trigger the actual SLA measurement and any chance of enforcement.
Could you see these issues in such cloud computing arenas as "Software as a Service" and "Infrastructure as a Service"? We've begun discussing this at past editions of the CCMI Telecom Negotiation Conference, and it'll be a key focus at the upcoming meeting in San Diego.
SLAs as well as all of the issues referenced in these recent articles and e-newsletters are the necessary sort of discussion all enterprises must have as they explore cloud computing.










