Technical Guides
CategoryEaser methods of controlling crontab
When it comes to crontabs, people sometimes go the hard way about it…
This isn’t to say that going the hardway is bad, sometimes it’s..
Getting BlackBerry Emails working from your CSF enabled Server
Recently we had a small issue with a client that couldn’t configure her Email to work on her Telstra enabled blackberry.
This is how we..
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..
Crucial SAN and Blade Environment
I thought it might good to provide everyone with some photos of the new HP SAN and Blade infrastructure that we will soon be deploying..
Apache: Stopping some web attacks
At crucial, we host a fair few websites… not to mention with our VPS customers.
All up there is a considerable amount of websites working..
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..