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18.23. 設定虛擬主機即時轉移
Red Hat Virtualization can migrate virtual machines between other servers running Red Hat Enterprise Linux 5.1 with Virtualization. Further, migration is performed in an offline method (using the
xm migrate
command). Live migration can be done from the same command. However there are some additional modifications that you must do to the xend-config
configuration file. This example identifies the entries that you must modify to ensure a successful migration:
(xend-relocation-server yes)
- The default for this parameter is 'no', which keeps the relocation/migration server deactivated (unless on a trusted network) and the domain virtual memory is exchanged in raw form without encryption.
(xend-relocation-port 8002)
- 這個參數設定
xend
用來移動的埠。如果數值正確,請確定移除在這之前的註釋。 (xend-relocation-address )
- 您啟動
xend-relocation-server
後,這個參數為接收重定位槽連接的位置。在接收時,會拒絕移動至特定介面。 (xend-relocation-hosts-allow )
- This parameter controls the host that communicates with the relocation port. If the value is empty, then all incoming connections are allowed. You must change this to a space-separated sequences of regular expressions (such as
xend-relocation-hosts-allow- '^localhost\\.localdomain$'
). A host with a fully qualified domain name or IP address that matches these expressions are accepted.
在設定這些參數後,您必須重新啟動主機,因此 Red Hat 虛擬化才能接受這些新參數。