Viewing entries tagged with 'virtualisation'
Migrate Paravirtualized Xen to KVM under RHEL
Update July 11, 2009: Re-registering VMs at RHN uses an extra entitlement with RHEL5.4Beta
Update July 15, 2009: Swap usage, clock and disk cache of the virtual machine
Update July 16, 2009: Replace virsh create with virsh define & start to create a managed domain and not a transient one
Update September 2, 2009: Re-registering with RHN works
Update September 2, 2009: RHEL5.4 has been released. Added a note about services on the physical host
Update September 6, 2009: Updating TimeKeeping and Hugepages
Back to Square One
In 1992 when I started my study in Astronomy, most students at the physics department were using X-terminals. Workstations were still fairly expensive then and had more power than any one person needed (on average). The X-terminal was a fairly dumb device. It had an X server for graphical representation and tftp client for booting. They worked very well in combination with UNIX servers.
Virtualisation Tips III
In the previous 2 blogs, the soft side of virtualisation was touched. This part is about the real stuff (no offence to non-techies meant). Though this part is technical, there are some tips to save money below, so non-techies may want to read this as well.
Virtualisation Tips II
At the introduction of virtualisation in any organisation its impact on service management is often overlooked. Virtualisation is implemented as just another technology. To gain maximum profit from virtualisation changes in the way services are managed are needed. Something, that became clear already in "Virtualisation Tips I". Changes in processes and procedures might even be necessary to remain legally compliant. If cost is the main driver behind virtualisation, the systems management approach is absolutely critical. Not only in processes and procedures, but also in tooling.
Virtualisation tips I
The human factor is often overlooked when implementing new technologies in the data center. Most organizations do think about training their personnel and most actually do spend budget on that, but that is it.
