Replication
There are 16 entries for the tag Replication
It is interesting to me the number of variant Transformers that have been put out over the years, and the effect that has on those who like transformers. There are four different “Construction Devastator” figures put out over the years (there may be more, I know of four), and every Transformers collector or fan that I know – including my youngest son – want them all. That’s great marketing on the part of Hasbro, for certain, but it does mean that those who are trying to collect them are going to have a hard time of it, just because...
When time and performance mattered, CSG Content Direct turned to Dell and F5 to make their replication faster while reducing WAN utilization. We talk a lot in our blogs about what benefits you could get from an array of F5 products, so when this case study (pdf link) hit our inboxes, we thought you’d like to hear about what CSG’s Content Direct did get out of deploying F5 BIG-IP WOM. Utilizing tools by two of the premier technology companies in the world, Content Direct was able to decrease backup windows to as little as 5% of their...
A few of us were talking on Facebook about high speed rail (HSR) and where/when it makes sense the other day, and I finally said that it almost never does. Trains lost out to automobiles precisely because they are rigid and inflexible, while population densities and travel requirements are highly flexible. That hasn’t changed since the early 1900s, and isn’t likely to in the future, so we should be looking at different technologies to answer the problems that HSR tries to address. And since everything in my universe is inspiration for either blogging or gaming, this lead me to...
I was working for a mid-sized enterprise as an IT manager, a project that was on the cutting edge of technology at the time, and because it was on the cutting edge, we were using a whole slew of different embedded applications and their masters to collect data. Those masters were written on every platform imaginable – from Novell Netware to Windows to Linux to Solaris – and in every language that was common on each of the platforms. Our job was to make sense of it all. The information these systems collected was billing data, they all collected...
When I was in Radiographer (X-Ray Tech) training in the Army, we were told the cautionary tale of a man who walked into an emergency room with a hatchet in his forehead and blood everywhere. As the staff of the emergency room rushed to treat the man’s very serious head injury, his condition continued to degrade. Blood everywhere, people rushing to and fro, the XRay tech with a portable XRay machine trying to squeeze in while nurses and doctors are working hard to keep the patient alive. And all the frenzied work failed. If you’ve ever been in an...
If you’ve never heard of my Load Balancing For Developers series, it’s a good idea to start here. There are quite a few installments behind us, and I’m not going to look back in this post any more than I must to make it readable without going back… Meaning there’s much more detail back there than I’ll relate here. Again after a lengthy sojourn covering other points of interest, I return to Load Balancing For Developers with a more holistic view – application performance. Lori has talked a bit about this topic, and I’ve talked about it in the...
You could, in theory, install 2 foot diameter pipes in your house to run water through. If you like a really forceful shower, or want your hot-tub to fill quickly, bigger pipes would be your first thought. Imagine your surprise if you had someone come in, and install huge pipes on the inside of your water meter, only to discover that you didn’t get a whole heck of a lot more water through them? You see, the meter is a choke point. As is the pipe leading up to your house. It’s not just the issue of the pipes...
Every once in a while you see something that reminds you of the old “right tool for the job” adage. I’ve probably told this story here before, but for those of you who don’t sit at the edge of your chair waiting for me to post another blog, I’ll re-tell it so you can laugh at me. THE EARLY LESSONS ARE THE STRONGEST My father was an antique dealer for most of my productive life. As a child I learned everything from identifying depression glass with a glance to caning chairs...
In the US, many people watch the entire season of NASCAR without ever really paying attention to the racing. They are fixated on seeing a crash, and at the speed that NASCAR races average – 81mph on the most complex track to 188 mph on the least curvy track – they’re likely to get what they’re watching for. But that misses the point of the races. The merging of man and machine to react at lightning speed to changes in the environment are what the races are about. Of course speed figures in, but it is not the only...
While there are a whole array of well-documented benefits to be found in virtualization, there is one truth to virtualization that has not escaped the experienced IT veteran. Virtualization sprawl is not just bad for operations, it is bad for disaster recovery planning. Not only are there a ton more systems to worry about in a world where a new system can be brought online and be fully functional in hours, there is a dedicated amount of disk packed behind that virtual machine that must be maintained also. And when the worst happens must be restored. ...
A couple of weeks ago, one of the people I follow on our home Twitter account (focused on role-playing and miniature wargames) tweeted “Zombies! This Year’s Vampires Are Zombies! Oh Please Let This Year’s Vampires Be Zombies!!” as a joke aimed at those in the entertainment industry that were riding the fad wave of Vampire films/books/games. Seriously, the show that did the penitent Vampire in the 80s was good, everything portraying a “good-guy” Vampire after that was lame follow-on. That’s how I feel about high-tech sometimes. “Cloud is This Year’s SOA! Oh Please Let Cloud Be This Year’s...
THE SLOW GROWTH OF SPEEDY COMMUNICATIONS It used to be that if you were replicating database or file storage to a remote location you had few options if your connection was not the best. You could use rate shaping to give more of the pipe over to your replication, increase TCP window sizes, turn on jumbo frames… All relatively primitive stuff. As time went on, the speed and reliability of data connections grew, which increased our usage of such connections to replicate data, which decreased the reliability of the connections because we...
So I’m jealous that Lori works D&D references into her posts regularly and I never have… Until today! For those who aren’t gamers or literary buffs, a Hydra is a big serpent or lizard with a variable number of heads (normally five to nine in both literature and gaming). They’re very powerful and very dangerous, and running into one unprepared is likely to get you p0wned. The worst part about them is that mythologically speaking, if you cut one of the heads off, two grow in its place. Ugly stuff if you’re determined to defeat it. That’s...
I had just finished writing this blog and was about to post it, taking that moment to go do other things before one final read-through, and guess what? I saw this article on Dell’s site cross my Twitter account. I’ll blame the fact that I’m the shiny new Technical Marketing Manager as the reason I did not know this was going on. I thought about just ditching the blog at that point… After all, the article linked to on Dell’s site is much more in-depth. But the blog was done. And I think it still adds value in the generic...
In the early days of Knighthood, it was a simple matter to become a knight. Save enough money, buy a horse (or four, knighthood was rough on horses) a suit of armor and some weapons, stake a claim and have those within the boundaries of your claim build you a manor house, or a castle. Suddenly you were a knight, collecting taxes, meeting out justice, and master of all you surveyed. Actually master of all you could ride to and back in a single day, much more than that had to wait for a more complex system. In the era...
I took the easy topic this week, and things are so crazy it’s still late in the day that I’m posting this. My apologies. This one also focuses more on ARX than previous ones – this is because replication is a differentiator for many vendors’ products, so I’m being careful to talk about what most can do, then give details for the one I know the best. If you’re just joining this series, there is a complete list of the Reasons to date on my team member page. Replication is of growing importance in the enterprise, be it...
