Welcome!

If everyone is thinking the same, someone isn't thinking

Lori MacVittie

Subscribe to Lori MacVittie: eMailAlertsEmail Alerts
Get Lori MacVittie via: homepageHomepage mobileMobile rssRSS facebookFacebook twitterTwitter linkedinLinkedIn


Latest Blogs from Lori MacVittie
Modeling should be the first step for #devops when automating a deployment process When I was a young software developer I had an interview at a large transportation company. This was when object-oriented principles were still the "thing" and Java hadn't quite yet become the language ...
The benefits are the same as #SDN – only they aren't as disruptive to the network One of the benefits touted by SDN is the ability to introduce new functionality into the network when it's needed, rather than on a vendor schedule. This capability is often referred to as...
We - and that's the networking industry at large - have been using the term "Application Fluency" for a long, long time. It started back in the days of bandwidth management solutions. QoS enforcers from many now-relegated-to-history vendors like Packeteer and Sitara Networks and Lights...
#f5 #BareMetalBlog Use the capacity you’ve already purchased – fill the chassis instead of buying new hardware. When you purchase a high-end storage array, it is not generally advised that you half fill the racks and then forget about it, purchasing a new empty rack to fil...
Code-switching is a linguistics term that refers to the act of switching between two or more languages in a single conversation. It's like starting off the conversation with a greeting in one language, switching to English for most of it, but using elements of the other language throug...
I recently posited a question on Twitter to feel out the attitudes toward technology related to cloud bridges. As you might recall, IPSec VPN connectivity was cited by attendees (real people) as a major requirement for cloud bridges at Gartner DC. For some time now, SSL VPNs have been ...
The data centers of the future may look more like NASA ground control – governance inside, resources out One theme has remained consistent throughout the evolution of cloud thus far - enterprise IT wants to retain control of both its data and access to to it. This is not an unreasona...
Performance is important, and that means it's important that our infrastructure support the need for speed. Load balancing algorithms are an integral piece of the performance equation and can both improve - or degrade - performance. That's why it's important to understand more about t...
#webperf #ado When load balancing, workload profile matters   
#BareMetalBlog Knowing what to test is half the battle. Knowing how it was tested the other. Knowing what that means is the third. That’s some testing, real clear numbers. In most countries, top speed is no longer the thing that auto manufacturers want to talk about. Top speed i...
A question – specific to F5 technology – was raised during the panel session I moderated at Gartner DC 2012 that for me, at least, raised an interesting question. Well, actually it wasn't just that question, but rather the question was the icing on the cake after hearing commentary fro...
#SDN #cloud How low (into the workload stack) can you go? One of the more interesting sentiments expressed by attendees at a roundtable session at Gartner Data Center earlier this month was the notion that to them, "SDN is packaging app as code, server, and network and deploying ...
#SDN #cloud How low (into the workload stack) can you go? One of the more interesting sentiments expressed by attendees at a roundtable session at Gartner Data Center earlier this month was the notion that to them, "SDN is packaging app as code, server, and network and deploying ...
Hybrid cloud models continue to outpace pure-public (and pure-private) models for most organizations. There's value in being able to leverage the cloud for a variety of reasons from periodic, expanding compute resources to dev and test environments. Whatever the reason, hybrid models a...
I asked this on Twitter as a general question after reviewing the results in the Completely Unscientific Hybrid Cloud Survey Results from Gartner DC 2012 and continued to wonder why IPSec VPN was specifically noted but SSL VPN was not. Certainly a VPN of some kind is a requirement, no ...
You might have noticed that in general, enterprise-grade networking solutions aren't always available for general deployment in public cloud environments. You might also have noticed that when you provision a compute instance in a public cloud environment you get one public (and usual...
A long-lived match made in the cloud will require more detail than providers and brokers are currently offering Buried in blogs around the Internets are references to a research survey conducted by research firm ESG earlier this year on behalf of VMware. While obtaining the full conte...
#BareMetalBlog What you test can say a lot about you #f5 Along the lines of the first blog in the testing portion of the Bare Metal Blog series, I’d like to talk a bit more about how the testing environment, the device configuration, and the payloads translate into test results....
Hybrid-mobile #cloud is the latest attempt at modernizing what remains a relatively unchanged, decades old computing model I was informed via e-mail that the "next big thing" is hybrid mobile-cloud (HMC), which is described as client being a mobile-native application and its server-si...
#BareMetalBlog #f5 All the goodness FPGAs bring hardware in general, and ADO hardware in particular. In two previous installments, I talked at a high level about the uses of FPGAs, risk mitigation, and the potential benefits. Today I’d like to delve into the benefits that the in...
Presenters asked, attendees responded, I compiled. Of COURSE you know I have something to say about these results, particularly with respect to the definition of "cloud bridges" comprising a variety of features that are more properly distributed across cloud brokers and cloud gateway...
Application architecture has never really been easy, but the introduction of virtualization may make it even less easy – unless you plan ahead Most applications today maintain at least two if not three or more "tiers" within their architecture. Web (presentation), application server (...
#gartnerdc Presenters asked, attendees responded, I compiled.   Of COURSE you know I have something to say about these results, particularly with respect to the definition of "cloud bridges" comprising a variety of features that are more properly distributed across cloud brokers ...
Application architecture has never really been easy, but the introduction of virtualization may make it even less easy – unless you plan ahead Most applications today maintain at least two if not three or more "tiers" within their architecture. Web (presentation), application server ...
#Cloud is great at many things. At other things, not so much. Understanding the limitations of cloud will better enable a successful migration strategy. One of the truisms of technology is that takes a few years of adoption before folks really start figuring out what it excels at – a...
I could cite various studies, pundits, and research to prove that automation improves the overall success rates of continuous deployment efforts, mitigates outages caused by human error and misconfiguration, and generally makes the data center smell minty fresh, but we already know all...
#Cloud is great at many things. At other things, not so much. Understanding the limitations of cloud will better enable a successful migration strategy. One of the truisms of technology is that takes a few years of adoption before folks really start figuring out what it excels at – a...
#BareMetalBlog #F5 Test results provided by vendors and “independent testing labs” often test for things that just don’t matter in the datacenter. Know what you’re getting. When working in medicine, you don’t glance over a patient, then ask them “so how do you feel when you’re at your...
Monday, Dec 10 @ 11am PT #infosec #cloud It’s not surprising or new that cloud security remains a top concern for many organizations. For some time, purveyors of security studies have asked the market, “What’s stopping you from adopting cloud?” Invariably one of the most often cited ...
Monday, Dec 10 @ 11am PT #infosec #cloud It’s not surprising or new that cloud security remains a top concern for many organizations. For some time, purveyors of security studies have asked the market, “What’s stopping you from adopting cloud?” Invariably one of the most often cited ...
#devops #video #puppet #stack RedHat puppetizes its infrastructure to reduce inefficiency and streamline deployment I could cite various studies, pundits, and research to prove that automation improves the overall success rates of continuous deployment efforts, mitigates outages cau...
One of our product development senior architects put this together for an introductory presentation on SDN. It's a great list of existing and nascent overlay protocols including encapsulation overhead, bridge and transport types, as well as links to the specifications.
It is quite difficult to find any environment that is truly homogeneous today. Even home networks, which at one time may have been "all Windows" or "all Linux" today are a mixture of mobile device, Apple, and Windows-based products. As networks grow, the heterogeneity of its infrastruc...
#SDN There's a lot going on in networking these days… One of our product development senior architects put this together for an introductory presentation on SDN. It's a great list of existing and nascent overlay protocols including encapsulation overhead, bridge and transport types, ...
One of the truisms of architecting highly available systems is that you never, ever want to load balance a request to a system that is down. Therefore, some sort of health (status) monitoring is required. For applications, that means not just pinging the network interface or opening a ...
 #virtualization #VDI #SDN Multiple goals = multiple hypervisors. This complicates things a bit, doesn't it? It is quite difficult to find any environment that is truly homogeneous today. Even home networks, which at one time may have been "all Windows" or "all Linux" today are a mix...
#webperf #ado Because every connection counts One of the truisms of architecting highly available systems is that you never, ever want to load balance a request to a system that is down. Therefore, some sort of health (status) monitoring is required. For applications, that means not ...
#BareMetalBlog The use of FPGAs, the risks, trade-offs, and benefits to IT. I was talking with the team working on our yard – they’re putting in new sidewalks and a patio, amongst other things – and we got on the subject of gutters. When we bought this house, it came with no gutters, ...
It's not enough to measure connectivity or even status codes… See also Axiom #1 of the Three Axioms of Application Delivery
It's not enough to measure connectivity or even status codes… See also Axiom #1 of the Three Axioms of Application Delivery 1024 Words: Why Devops is Hard 1024 Words: The Theory of (Performance) Relativity  Filling the SLA Gap in the Cloud Visibility: Keyst...