Shulou(Shulou.com)06/02 Report--

memory tuning

modify the configuration file

[root@controller ~]# virsh edit windows_2k3_01

524288

524288

memory: defines maximum memory;

currentMemory: memory size, can not exceed the maximum memory;

Note: If the virtual machine is powered on, you need to stop it.

Modify Maximum Memory (Off state)

[root@controller ~]# virsh setmaxmem windows_2k3_01 824288 --config

Modify actual memory size

[root@controller ~]# virsh setmaxmem windows_2k3_01 824288 --config -live

View memory information

[root@controller ~]# virsh dominfo windows_2k3_01

CPU adjustment

modify the configuration file

1

Note: If the virtual machine is powered on, you need to stop it.

Modify maximum CPU count (shutdown state)

[root@controller ~]# virsh setvcpus windows_2k3_01 --maximum 4 --config

Modify actual CPU usage

[root@controller ~]# virsh setvcpus windows_2k3_01 2

View CPU information

[root@controller ~]# virsh dominfo windows_2k3_01

Modified Profile

4

Network card adjustment

View network card information

[root@controller ~]# virsh domiflist windows_2k3_01

Interface Type Source Model MAC

-------------------------------------------------------

- network default rtl8139 52:54:00:73:44:3e

Create a network card (boot state)

[root@controller ~]# virsh attach-interface windows_2k3_01 --type network --source default --config

Note: If config parameter is not added, it means that network card is temporarily added, otherwise it is permanently added. In addition, Linux system virtual machine type is different from source value.

remove the nic

[root@controller ~]# virsh detach-interface windows_2k3_01 --type rtl8139 --mac 52:54:00:ed:47:f9

increase disk

View disk space

[root@controller ~]# qemu-img info /data/pool/windows_2k3_01

file format: qcow2

virtual size: 30G (32212254720 bytes)

increase disk

[root@controller ~]# qemu-img create -f qcow2 /data/pool/windows_2k3_01_new 1G

Note: Disk capacity increase needs to be performed in the system shutdown state. If the system is in operation, it is necessary to restart the system.

modify the configuration file

[root@controller ~]# virsh edit windows_2k3_01

Add the following to your profile

Note: The dev value is unique, hda for the first disk, hdb for the second disk, and so on. Note the dev value for the optical drive.

format the partition

Right-click "Manage"-click "Disk Management"-click "Initialize Disk"-click "Create Partition"

Note: There is also a way to expand, directly modify the original image size. The requested URL/data/pool/window_2k3_01 + 5G was not found on this server.

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