xenserver
TagGetting to Know Your XenServer
I am currently auditing our Citrix XenServer 5.6 Pools. I wanted to be able to easily export some data into Microsoft Excel so I can..
Introduction to Software Defined Networking
If you’re into networking then you will have surely heard of it. If reciting command after command is your thing then its time to be..
XenServer: Under the hood
One thing you notice online when working in virtualisation is the lack of resource explaining the engines / drive trains / gear boxes..
Where is the xm Command in XenServer?
For those of you have used vanilla Xen will know about the xm command and what it does. While I’ve found in a few places people are..
XenServer: INTERNAL_ERROR: Failure is already attached in RO mode it can’t be attached in RW mode
If you are receiving the following error in XenServer/XenCenter, there is a quick fix! (more…)
XenServer: Internal error: another frontend device is already connect to this domain
During our testing we have had this error pop up a few times while trying to start VMs after we have unplugged a blade without correctly..
XenServer NICs Missing After Reboot
During some testing of our up and coming highly available solution, we noticed an issue when a XenServer node in a pool had been hard..
XenServer Useful Commands Listing VM Numbers
XenServer does not have any obvious stats on the number of VMs in a pool, or on a particular server. These details can however can be..
Hacking XenServer: Open vSwitch Controller (DVSC) Changing Password
If you have had trouble getting access to the Distributed vSwitch Controller (DVSC) in XenServer, then you are not alone!
While doing..
How to disable HA/High Availibility in Citrix XenServer
If you have ever had problems with time on a cluster, and had trouble getting the licenses in sync in Citrix XenServer 5.6 FP1, you can..
XenServer: Server won’t exist maintenance mode, Cannot forward messages because the server cannot be contacted
If you ever find that, in XenServer, your server won’t exist maintenance mode after a power failure, or even just normally you may have a..
How to change the pool master server Citrix XenServer
You can use the following commands to change the Citrix XenServer pool’s master server:
First you need to disable high availibility:
xe..