Storage networks have been used for disaster recovery and business continuity purposes for as long as fibre-channel existed. The moment arrays could communicate to other arrays over either short or long distances replication software has been developed and incorporated in firmware so that data could be copied to remote sites.
9 – Long Distance configurations Read More »
It is no secret that many vendors use open source software in their products and solutions. One of the most ubiquitous is Linux which is often the base of many of these products and used as core-OS because of it\’s flexibility and freely available status without the need of keeping track of licenses (to some
Open Source Software (OSS) and security breaches in proprietary firmware Read More »
The piece of spinning Fe3O4 (ie rust) is by far the slowest piece of equipment in the IO stack. Heck, they didn\’t invent SSD and Flash for nothing, right. To overcome the terrible latency, involved when a host system requests a block of data, there are numerous layers of software and hardware that try to
Performance misconceptions on storage networks Read More »
To many it has always been a mystery what happens when you connect fibre-channel switches to each other and all of a sudden magic happens and you can have an host \”talk\” to an array or an other device on an other switch. The same mystery however applies when this doesn\’t work and you see
5.1 ISL/E-port configuration – The right way. Read More »
As with all good stuff there are always people and companies that try to jump on the bandwagon and make some dollars by using cheap kit and sell it as \”Original\” or \”Compatible\” or \”Vendor equivalent\”. Don\’t fall for this trap and simply buy Original Vendor Branded & Supported equipment. One example is FiberStore.
Brocade \”compatible\” SFP\’s will disrupt your fabric. Read More »
As with all good stuff there are always people and companies that try to jump on the bandwagon and make some dollars by using cheap kit and sell it as \”Original\” or \”Compatible\” or \”Vendor equivalent\”. Don\’t fall for this trap and simply buy Original Vendor Branded & Supported equipment. One example is FiberStore.
Brocade \”compatible\” SFP\’s will disrupt your fabric. Read More »
One of the regularly used features in BNA is the ability to retain performance numbers and a history of port errors. It is then most annoying when these graphs show a flatline when you know there is a significant amount of traffic traversing these links.
Brocade Network Advisor Performance Graphs flatline Read More »
As a support-guy you very often look at port counters. These do not only provide insight into the status of a port but also may give statistical information which allows you to plan and design new connectivity layouts and diagrams or give some general advice. If you look at the wrong counters though you may
Port counters may be flawed. Read More »
I\’ve written about Fabric Watch quite a lot and I have always stressed the usefulness of this licensed add-on as a feature in FOS. This post will outline the major characteristics of MAPS and why you should migrate now. As of FOS 7.2 there has been a transition from Fabric Watch to MAPS (Monitoring and
1.1 – MAPS – Know what\’s going on. Read More »
I\’ve written about Fabric Watch quite a lot and I have always stressed the usefulness of this licensed add-on as a feature in FOS. This post will outline the major characteristics of MAPS and why you should migrate now. As of FOS 7.2 there has been a transition from Fabric Watch to MAPS (Monitoring and
1.1 – MAPS – Know what\’s going on. Read More »
