US 9,286,093 B1Granted

Setting up network adaptors in a virtual machine

AssigneeCA, Inc.

InventorsJinxing Yin, Jiaolin Yang, Haiyang Zhang, Guoxian Shang

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Abstract

Various embodiments illustrated and described herein include systems, methods, and computer program products to set up network adaptors in a virtual machine. In some embodiments, a replica virtual machine is started when a replica server takes over for a failed master server. In some embodiments, prior to, or contemporaneously with, a switchover from the master server to the replica server, a virtual storage device of the replica virtual machine is mounted outside the virtual machine environment (e.g., not to the virtual machine). Network adaptor configuration information is copied to the virtual storage device. An injector tool is also configured to run automatically when the replica virtual machine is started. The virtual storage device is the unmounted. When the virtual machine is started as part of the switchover process, the injector tool runs and uses the network adaptor configuration information to configure the network adaptor.

Claims17

Dependent claims

A method comprising:

determining that a first server, which hosts a virtual machine, is in a first subnet and that a second server, which hosts a replica copy of the virtual machine, is in a second subnet;
determining that the virtual machine has a fixed network address;
in response to determining that the first server and the second server are in different subnets and that the virtual machine has a fixed network address, determining, at a control service, network adaptor configuration information for a network adaptor of the replica copy based, at least in part, on the first and second servers being in different subnets;
mounting, at the second server but outside of a child partition corresponding to the replica copy of the virtual machine, a virtual storage drive associated with the replica copy of the virtual machine;
copying the network adaptor configuration information to the virtual storage drive;
setting an injector tool to configure a virtual network adaptor of the replica copy with the network adaptor configuration information in response to start up of the replica copy of the virtual machine for switchover from the virtual machine to the replica copy of the virtual machine;
and
unmounting the virtual storage drive after configuration of the virtual network adaptor.

5 more elements

A system comprising:

a processor coupled to a memory device;
instructions stored on the memory device, the instructions executable by the processor to cause the system to:
determine that a first server, which hosts a virtual machine, is in a first subnet and that a second server, which hosts a replica copy of the virtual machine, is in a second subnet;
determine that the virtual machine has a fixed network address;
in response to a determination that the first server and the second server are in different subnets and that the virtual machine has a fixed network address, determine network adaptor configuration information for a virtual network adaptor of the replica copy based, at least in part, on the first and second servers being in different subnets;
mount a virtual machine storage drive associated with the virtual machine, wherein the instructions to mount are executable by the processor to cause the system to mount the virtual machine storage drive at the second server that hosts the replica copy but outside of a child partition corresponding to the replica copy of the virtual machine;
copy the network adaptor configuration information to the virtual machine storage drive;
set an injector tool to use the network adaptor configuration information to configure the virtual network adaptor of the replica copy of the virtual machine in response to the replica copy starting for switchover from the virtual machine;
and
unmount the virtual machine storage drive after configuration of the virtual network adaptor.

7 more elements

A computer program product for switchover from a virtual machine to a replica copy of the virtual machine in a different subnet, the computer program product comprising:

a non-transitory machine-readable medium having program code embodied therewith, the program code to:
determine that a first server, which hosts the virtual machine, is in a first subnet and that a second server, which hosts the replica copy of the virtual machine, is in a second subnet;
determine that the virtual machine has a fixed network address;
in response to a determination that the first server and the second server are in different subnets and that the virtual machine has a fixed network address, determine network adaptor configuration information for a virtual network adaptor of the replica copy based, at least in part, on the first and second servers being in different subnets;
mount a virtual machine storage drive associated with the virtual machine, wherein the program code to mount comprises program code to mount the virtual machine storage drive at the second server but outside of a child partition corresponding to the replica copy of the virtual machine;
copy the network adaptor configuration information to the virtual machine storage drive;
set an injector tool to use the network adaptor configuration information to configure the virtual network adaptor of the replica copy of the virtual machine in response to the replica copy starting for switchover from the virtual machine;
and
unmount the virtual machine storage drive after configuration of the virtual network adaptor.

6 more elements

Dependencies are inferred from the claim text.