Last week a tweet by Duncan Epping based on my post in part 1 referred to a page from Massimo Re Ferre and I think Duncan\’s intent was to downplay the effect of my post and emphasize the technological differences between the solutions VMware offers (with the bold mark on vSphere) and the new technologies […]
Why Docker is the new VMware (part 2) Read More »
Reading a post from Hans DeLeenheer (VEEAM) which ramped up quite a bit including responses from Calvin Zito (HP), Alex McDonald (NetApp) and Nigel Poulton. The discussion started on a comment that XIO had \”special\” firmware which improved IO performance. Immediately the term \”short-stroking\” came up which leads to believe X-IO is cheap-skating on their technologies. I
Short stroking disk drives to improve performance Read More »
Whenever you see Fabricwatch throw a lot of a lot of FW-1050 warning messages around indicating an out of boundary power value on SFP\’s it is most likely these ports have never been polled by the CP\’s. 2014/10/08-04:04:27, [FW-1050], 94159, SLOT 5 | FID 128, WARNING, xxxxxx, Sfp Supply Voltage for port 7/13, is below
FabricWatch FW-1050 alerts on SFP power failures Read More »
I always try to keep a clean slate on my Linux box. Not only when it comes to security but one thing I really hate is the massive amount of stuff that gets downloaded as \”chemical waste by-products\” like a gazilion revisions of twitter and other (anti-)social media icons, pictures, style-sheets etc. etc. etc. Obviously
Getting rid of browser cache polution Read More »
5 Years ago wrote this article: Server virtualisation is the result of software development incompetence Yes, it has given me some grief given the fact 99% of respondents did not read beyond the title and made false assumptions saying I accused these developers for being stupid. Tough luck. You should have read the entire article.
Why Docker is the new VMware Read More »
Historically the need to segregate fibre-channel traffic and have the option to prioritize frames and flows has not been high on design agenda of most of the companies I had under my eyes. Most often if the need is there to differentiate between different levels of importance between the various business applications you\’ll very often
8 – Quality of Service Read More »
This topic is hardly ever touched when fabric designs are developed and discussed among storage engineers but for me this always sits on my TODO list before hooking up any HBA or array port. It is as important in the storage world as it has been in the IP networking sector for decades. Historically the
7 – Fabric Security Read More »
FCIP has been around for quite a while. The fine engineers of CNT/McData/Brocade/Rhapsody/Vixel (you name them) saw early one that a method was needed to overcome the, back then, distance limitation of around 10KM. This was not due to a limitation in the FC protocol itself but more due to the fact the hardware back
FCIP configuration, pitfalls and troubleshooting Read More »
This week I had a very interesting question from one of the fellow blog readers. Why do I see no traffic on a new FCIP tunnel when I already have an established tunnel between two Brocade 7800 switches? Although I wasn\’t provided with all the details I\’ll try to describe some of the pitfalls that
Unexpected FCIP tunnel utilisation Read More »
Features and licenses Ever seen these? If not you might just have thrown away one of the most expensive pieces of you purchase. This is the envelope that contains the transaction key which allows you to generate the license for the specific feature you bought. If you have discarded it I must say that is
6 – Non Standard configuration options Read More »
