We upgraded a pair of Cisco Nexus 5K switches early last week which had been running a 7.0 release for a while. The switch pair was running beautifully and by that I mean no errors or discards on any interfaces.
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The Cisco Nexus 9K’s have been out for a little while now, however it has only been recently that the support for FCoE have come to these switches.
Cisco Nexus 5000 – Operation Failed. Fabric is already locked
The other day I came across this problem where I could not update the device-alias database for an FCoE WWPN. When I tried to update the database I got the following error – Operation Failed. Fabric is Locked.
New Cisco UCS Simulator Tutorial
A lot of people have asked me how to do certain tasks within Cisco UCS, however they tell me they don’t have a lab system to test on. What you may of already known or not is that Cisco provide a Cisco UCS Simulator for you to configure and test with.
How to Block a HTTP Referer with Microsoft and Cisco ASA
This week I was working on a customer where their website was being bombarded by random hits coming from a referer out there on the internet.
I have found a lot of articles on the internet about how to add Cisco UCS IOM uplinks to your interconnect, but I could not find any on removing. So I’ve decided to write this small post on the simple procedure of how to remove Cisco UCS IOM Uplink ports.
Two new Tutorials are now available for Microsoft and Cisco. The Microsoft tutorial covers the best way to find the 5 FSMO roles using ntdsutil and netdom. The Cisco tutorial involves a Cisco Nexus 5000 CLI Pocket Guide for Reference that I will constantly add too.
Last night I just completed a 4 part video tutorial series walking you through how to install and configure the Cisco Nexus 1000v within VMware vSphere 5.1.
I’ve just completed the Cisco Nexus 1000v Secondary switch setup tutorial. In this tutorial we will install and configure the secondary switch to connect to the same Domain ID as the primary and boot up as a standby node. We will verify this with show module from the cli.
Windows Failover Cluster Volume Mount Points
A new addition to the Windows Clustering Tutorials is how to add Volume Mount Points to a Windows Failover Cluster. In this tutorial I run through creating the root volume mount point and two additional mount points.