虚机管理
[root@NMA04-304-D-06-SEV-NF5468M5-04U25 raid]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 447.1G 0 disk
├─sda1 8:1 0 200M 0 part /boot/efi
├─sda2 8:2 0 1G 0 part /boot
└─sda3 8:3 0 445.9G 0 part /
sdb 8:16 0 1.8T 0 disk
└─sdb1 8:17 0 1.8T 0 part
└─md0 9:0 0 1.8T 0 raid1 /mnt/raid
sdc 8:32 0 1.8T 0 disk
└─sdc1 8:33 0 1.8T 0 part
└─md0 9:0 0 1.8T 0 raid1 /mnt/raid
[root@NMA04-304-D-06-SEV-NF5468M5-04U25 raid]# pwd
/mnt/raid
[root@NMA04-304-D-06-SEV-NF5468M5-04U25 raid]# ll -rht
total 24K
drwx------. 2 root root 16K Sep 5 11:44 lost+found
drwxr-xr-x. 2 root root 4.0K Sep 5 11:52 qcow2
drwxr-xr-x. 2 root root 4.0K Sep 5 11:55 os
文件位置
- 卷：/mnt/raid
- 磁盘：/dev/sdb1 and /dev/sdc1
磁盘raid（可选）
将前面的sdb 和 sdc组raid1，挂载到/mnt/raid,待补充
虚机配置
/mnt/raid/os，里面有qcow2和xml文件
- qcow2 可从开源下载：http://mirrors.nju.edu.cn/centos-cloud/centos/7/images/
- xml：待补充（非常重要）
<?xml version="1.0" encoding="utf-8"?>
<domain type="kvm" id="44">
<name>centos_1</name>
<metadata>
<libosinfo:libosinfo xmlns:libosinfo="http://libosinfo.org/xmlns/libvirt/domain/1.0">
<libosinfo:os id="http://redhat.com/rhl/7"/>
</libosinfo:libosinfo>
</metadata>
<memory unit="KiB">16777216</memory>
<currentMemory unit="KiB">16777216</currentMemory>
<vcpu placement="static">16</vcpu>
<resource>
<partition>/machine</partition>
</resource>
<os>
<type arch="x86_64">hvm</type>
<boot dev="hd"/>
</os>
<features>
<acpi/>
<apic/>
</features>
<cpu mode='host-model' check='partial'/>
<clock offset="utc">
<timer name="rtc" tickpolicy="catchup"/>
<timer name="pit" tickpolicy="delay"/>
<timer name="hpet" present="no"/>
</clock>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<pm>
<suspend-to-mem enabled="no"/>
<suspend-to-disk enabled="no"/>
</pm>
<devices>
<emulator>/usr/libexec/qemu-kvm</emulator>
<disk type="file" device="disk">
<driver name="qemu" type="qcow2" cache="none"/>
<source file="/mnt/raid/os/CentOS-7-x86_64-GenericCloud.qcow2" index="1"/>
<backingStore/>
<target dev="sda" bus="scsi"/>
<alias name="scsi0-0-0-0"/>
<address type="drive" controller="0" bus="0" target="0" unit="0"/>
</disk>
<controller type="usb" index="0" model="ich9-ehci1">
<alias name="usb"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x04" function="0x7"/>
</controller>
<controller type="usb" index="0" model="ich9-uhci1">
<alias name="usb"/>
<master startport="0"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x04" function="0x0" multifunction="on"/>
</controller>
<interface type='network'>
<source network='default'/>
<model type='e1000'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
<controller type="usb" index="0" model="ich9-uhci2">
<alias name="usb"/>
<master startport="2"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x04" function="0x1"/>
</controller>
<controller type="usb" index="0" model="ich9-uhci3">
<alias name="usb"/>
<master startport="4"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x04" function="0x2"/>
</controller>
<controller type="pci" index="0" model="pci-root">
<alias name="pci.0"/>
</controller>
<controller type="scsi" index="0" model="virtio-scsi">
<alias name="scsi0"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x05" function="0x0"/>
</controller>
<controller type="virtio-serial" index="0">
<alias name="virtio-serial0"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x06" function="0x0"/>
</controller>
<serial type="pty">
<source path="/dev/pts/3"/>
<target type="isa-serial" port="0">
<model name="isa-serial"/>
</target>
<alias name="serial0"/>
</serial>
<console type="pty" tty="/dev/pts/3">
<source path="/dev/pts/3"/>
<target type="serial" port="0"/>
<alias name="serial0"/>
</console>
<channel type="unix">
<source mode="bind" path="/var/lib/libvirt/qemu/org.qemu.guest_agent.0.13b421fe-bc3f-7b60-da01-d00b1ebd45fb.sock"/>
<target type="virtio" name="org.qemu.guest_agent.0" state="connected"/>
<alias name="channel0"/>
<address type="virtio-serial" controller="0" bus="0" port="1"/>
</channel>
<input type="mouse" bus="ps2">
<alias name="input0"/>
</input>
<input type="keyboard" bus="ps2">
<alias name="input1"/>
</input>
<graphics type="vnc" port="5903" autoport="yes" listen="0.0.0.0">
<listen type="address" address="0.0.0.0"/>
</graphics>
<video>
<model type="qxl" ram="65536" vram="65536" vgamem="16384" heads="1" primary="yes"/>
<alias name="video0"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x02" function="0x0"/>
</video>
<memballoon model="virtio">
<alias name="balloon0"/>
<address type="pci" domain="0x0000" bus="0x00" slot="0x07" function="0x0"/>
</memballoon>
</devices>
<seclabel type="dynamic" model="dac" relabel="yes">
<label>+107:+985</label>
<imagelabel>+107:+985</imagelabel>
</seclabel>
</domain>
虚机管理
virsh list --all
virsh define .xml
virsh start
virsh console
修改虚机大小
- 需要需求在shutdown状态修改
qemu-img resize CentOS-7-x86_64-GenericCloud.qcow2 200G
- 需要虚机在start状态重新对分区
分区表
fdisk /dev/sda
需要删除分区
需要重建分区
使用默认配置即可，最大分区
partprobe
cat /proc/mounts
xfs_growfs /dev/sda1
[root@localhost ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 200G 0 disk
└─sda1 8:1 0 200G 0 part /
修改虚机密码
- 此命令会直接修改qcow2
virsh set-user-password centos_1 root XXXXX
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