virtualization
TagIntroduction 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..
Parallels APAC Summit and Singapore F1 Grand Prix
Both Ijan and I were fortunate enough to be given the opportunity to attend the Parallels APAC Summit 2012. The event was held in..
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..
Alarms List Problem on HP P4000 SAN
If you are one of the many people getting one of the following errors this article will help you!
If your alarms list keeps showing the..
Enabling Support Upgrades SAN/iQ CMC 9.0 – HP P4000
If you have ever needed to enable Support Upgrades in the CMC, to manually install patches as you used to be able to with SAN/iQ 8.5 and..
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..