What Does Your Desktop Service Strategy Look Like?
Posted by James B. in Technology on February 20, 2010
If you believed in ITIL v3, what would your Desktop (as a) Service Strategy look like?
If using VDI technology to deploy Desktop Services is a great idea (according to the alleged market size, and vendor/consumer bustle in that market place, it seems to be so) then how do you do it? Well, according to ITIL, you start with a Service Strategy.
I’m no ITIL kung fu master, and this is by choice because I consider ITIL a minor tool that, at best, needs to be used in conjunction with other tools to do the job and it’s not the be-all or end-all. ITIL’s better than nothing, but it’s not everything. And I have a hunch that ITIL pushers are like other religious groups: generally benign, often nice, thoughtful people, but very sensitive if you dare to criticize their church (itSMF), books or practices.
How does ITIL (seek to) help in developing a Desktop Services Strategy? Read the rest of this entry »
Over Subscribing or Over Capacity
Posted by James B. in Technology on February 15, 2010
There’s been a very interesting set of discussions lately regarding performance anomalies across Cloud infrastructure providers. The most recent involves Amazon Web Services and RackSpace Cloud. Let’s focus on the former because it’s the one that has a good deal of analysis and data attached to it.
Reuven Cohen’s post (Oversubscribing the Cloud) summarizing many of these concerns speaks to the meme wherein he points to Alan Williamson’s initial complaints (Has Amazon EC2 become over subscribed?) followed by CloudKick’s very interesting experiments and data (Visual Evidence of Amazon EC2 network issues) and ultimately Rich Miller’s summary including a response from Amazon Web Services (Amazon: We Don’t Have Capacity Issues)
The thing that’s interesting to me in all of this is yet another example of people mixing metaphors, terminology and common operating methodologies as well as choosing to suspend disbelief and the reality distortion field associated with how service providers actually offer service versus marketing it. Read the rest of this entry »
Moved Hosts
I have completed moving the site to my new choice of host, (mt) MediaTemple. This site and a couple of other sites that I have are running in their (gs) Grid Server layer. Let me know if you see anything out of line on here that might be due to the move.
Automate SSH Logins with expect (without keys)
Posted by James B. in Technology on February 8, 2010
You need to automate a task across many machines. You know the user name and password, but for some reason, either by policy or otherwise, you are not allowed to use PKI, or Public Key Infrastructure.
Well, not to give up hope just yet, because there is a nice little tool that is extremely powerful, yet not widely utilized. it’s called ‘expect’.
Read the rest of this entry »
VMware Virtual Center and vCenter Redundancy
Posted by James B. in Technology on February 8, 2010
Introduction
VMware Virtual Center (now called vCenter) is a critical piece of VMware’s Virtual Infrastructure Suite. If you use the VMware Virtual Infrastructure Suite, it is likely that you use Virtual Center / vCenter for ANYTHING related to management of your virtual infrastructure. Many of us have Virtual Center, SQL Server, and the VMware License server running all on a single server. We use VC to administer our guest VMs, check performance, configure high availability, load balancing, and so much more. But what if Virtual Center went down? What would happen to your Virtual Infrastructure and the entire critical guest VMs? Let us find out what would happen and then what you can do to keep VC as highly available as possible. Read the rest of this entry »
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