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5 Top Challenges of SAN Design: View from our SAN Design Experts – Part 2

Last week, here, I started my 2 part blog on some of the top SAN design and deployment challenges we see.  As I mentioned, I put this together with help from my SAN expert colleagues, Barbara Ledda and Wolfgang Lang.  We are all part of the Cisco Services professional services team, where we experience first-hand the challenges of adopting new technologies including SAN.

Last week, we discussed the following challenges:

#1 Don’t assume that your server multi-pathing software is installed or working, or even licensed, or installed but never used/tested by your server team!

#2 Tendency to significantly over-estimate utilization on the SAN network. 

Lets’ now discuss our challenges #3 – #5, which will discuss interoperability, expertise and architectural details respectively.  Architectural details as it turns out is a key concern of some of you reading Part 1 of this blog – a few questions came in and you can view the discussion here (and thanks to my colleagues Venkat Kirishnamurthyi and Jing Luo for contributing to this discussion). With this in mind, you may find the Cisco MDS architecture discussion video here also useful.

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5 Top Challenges of SAN Design: View from our SAN Design Experts – Part 1

SAN Engineer

Look after your SAN experts!

One of the aspects I really enjoy about my job is that I get to learn from some of the world’s top network and data center design engineers, and I get to hear about technology adoption challenges across the world. If there is a complex network or data center design being worked by our customers, if our customers are under time pressure, or if our customers are facing key business or technical challenges, Cisco Services’ consultants are often called in to help.  Globally then, they experience first hand the challenges of deploying advanced technologies.  In this blog, in the same spirit as my OpenStack Deployment Challenges blog, I’d like to share their experiences on some of the most common challenges and misconceptions faced by our customers when building Storage Area Networks (SAN).  I’ll publish this in 2 parts – so look out for the concluding part next week.

Before continuing, I’d like to thank two of our SAN expert consultants, Barbara Ledda and Wolfgang Lang, for sharing their experiences and challenges.

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How Many Servers Do You Have …. Comatose and Sitting Idle?! (Part 1)

In my role in Cisco Services, I’m more interested in the challenges of technology adoption and deployment than I am in speeds and feeds, statistics and technology fads.  I actively seek out case studies where technology goes wrong – admittedly most of these examples turn out to be issues around introducing and managing the technology, rather than the technology itself.  So I have to admit, I was fascinated by a recent  eWeek article (full details below) which discussed the huge proportion – the report uncovers evidence of up to 30%!! – of (physical) servers in enterprise data centers that are typically running doing nothing!!  Yes – up to 30% – even in these days of virtualization!

 

How Many Idle and Comatose Servers Do You Have?!

How Many Idle and Comatose Servers Do You Have?!

Yes, even in your data center, it’s probably a safe bet to say that you have some servers that are not doing that much information processing today!  In this part 1 of my blog, I’ll discuss the costs – obvious and hidden – of the idle server challenge.  And next week I’ll discuss why this happens and what you could and indeed should do about it!

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Criteria for SDN/NFV Vendor Selection – Heads Up on Cisco Live

Cisco Live US 2015 is just around the corner, and will start in San Diego on June 7th, running through Thursday 11th June.  I’m surprised and honoured to be one of the folks wearing a “Cisco Live Speaker” shirt, and I’m looking forward to sharing some of what I’ve been working on over the past year or two.

I’ll be basing a lot of my presentation off of as yet unpublished, independent market research, into the challenges of SDN and NFV adoption, some of which are illustrated in the diagram below.  The final copy of this brand new market research report landed on my desk just last weekend – May 23rd 2015.  Hot off the press, it was funded by Cisco but conducted completely independently by a leading market research company.  The intent of this report is to guide our SDN and NFV professional services strategy. Some of the insights, however, are too useful not to share with you!  Covering a global audience, with separate questionnaires for service provider and enterprise businesses, we had set out to increase our understanding of the latest challenges of adoption of SDN and NFV as appopriate in (enterprise) businesses, including public sector, and service provider markets.

Some of the Topics in my Cisco Live Presentation

Questions I Will Discuss In My Cisco Live Presentation

 

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Identifying and Solving the Cloud Sprawl Problem

An interesting read for me one day last week was the Wall Street Journal reporting on the exploding yet ungoverned use of cloud services by employees in just about every organization.  Referring to Rachael King writing for CIO Journal, author Steve Rosenbush outlines the potential for security problems and the surprising reaction of companies who start to understand how many cloud services employees are really using.

The facts of unregulated cloud usage are surprising, no debate.  A few months back I was talking to an industry analyst and I asked him how many cloud providers enterprise organizations knew they had, and how many were actually being used by employees.  He replied “probably 5 or 6” are known, and “maybe 10 or so are actually in use in total”.  “So maybe double?” I replied to confirm my understanding.   He nearly fell off his chair when I told him what we are finding in Cisco Services engagement, that it’s more like a factor of 10-15 than a factor of 1-2!  (as the following diagram shows)

Cloud Usage

There are two aspects to this problem I’d like to discuss in this blog, identifying the cloud usage and then both consolidating and tidying it up, with the aim of increasing security and saving you money in  the process.  I’ll also related this to two key services we offer in this arena, Cisco Cloud Consumption Services and Cisco Cloud On-boarding Services.

 

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