Category Archives: Storage Networking

FOS version 9 – Gen 7 Fibre-Channel is here

Yahooo… (No not the company) FOS version 9 is here. The one that starts to support Gen 7 (64/256 Gbit) Fibre Channel. Now, just in case you’re getting [..]

Brocade, Brocade Technical , , ,

PortFencing – the hard or soft way?

As you can read in my previous articles (here, here and here) having a physical issue on any of you FC links is detrimental to your entire FC [..]

Brocade Technical, Uncategorized , , ,

Dynamic connectivity overview in “switchshow” output

In a Brocade environment the “switchshow” is one of the most used commands out there. It provides a quick overview of what the state of the switch is, [..]

Brocade, Brocade Technical , , , ,

The DCX man has retired.

In 2008 Brocade announced the 8G director class switches DCX and DCX-4S. A rather impactful release of a new piece of hardware where the next generation FC ASIC [..]

Brocade, Storage Networking , , , ,

HBA Firmware and Drivers – The Storage Grey Area

Whenever things goes haywire on an OS or application there are two areas that are looked at first: Networks Storage In a fair few cases the issue is [..]

Storage, Storage Networking, Troubleshooting , , , ,

Crackdown on FOS support

If you’ve read my articles over the last decade or so you’ve seen I’m keen on maintenance. Both from a physical hardware as well as software perspective a [..]

Brocade, Fibre Channel, Storage Networking, Troubleshooting , , , , ,

BNA before 14.4.1 is no longer supported

I’ve already mentioned that BNA was End-of-Life and will/is (be) replaced by SANNav. As of the time of this writing any BNA version older than 14.4.1 is no [..]

Brocade, Brocade Technical, Storage Networking , , , ,

Storage Videos – Troubleshooting – High CPU utilisation

Storage Videos

Initiator, Target, Both or None ??

Whenever you’ve encountered an output of a nameserver entry you may have come across the phenomenon that the fabric has no clue what the attached device is. For [..]

Brocade, Brocade Technical, Fibre Channel, Storage Networking, Troubleshooting , , ,

FOS 8.2.1 – the one that is required.. or not?

Like clockwork Brocade releases new FOS version around every 6 months. No news here. FOS 8.2.1 is however a release you may need to pay special attention to [..]

Brocade Technical, Troubleshooting , , ,