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Features

44 bytes added, 11:22, 11 September 2006
added a link to main article in Checkpointing and live migration
== Checkpointing and live migration ==
 
{{Main|Checkpointing and live migration}}
 
A live migration and checkpointing feature was released for OpenVZ in the middle of April 2006. It allows to migrate a VE from one physical server to another without a need to shutdown/restart a VE. The process is known as checkpointing: a VE is freezed and its whole state is saved to the file on disk. This file can then be transferred to another machine and a VE can be unfreezed (restored) there. The delay is about a few seconds, and it is not a downtime, just a delay.