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Trace: • 29 Ceph Dashboard • 02 bnx2xゲストVMのネットワークが遅すぎる • 2021.08.20 XShell 永続ライセンス • Nagios外部コマンド • swapスペースを追加する方法 • 03 自動で定義済みの定数 • 07 route add Windows • 06 MEMCPU • 2021.08.03 KVM IOPS limit • 2025.03.20 Zed Keymap

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  • 12 ファイルをすべてバックアップ
  • 09 qcow2 backing file

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08 qcow2 バックアップ 外部へ取得する場合(online external) @01_linux:08_仮想化:kvm
9 Hits, Last modified: 3 years ago
ode> # virsh dumpxml testvm . . . <disk type='file' device='disk'> <driver name='qemu' type='qcow2'/> <source file='/var/lib/libvirt/images/testvm.testsnap' index='3'/> <backingStore type='file' index='2'> <format type='qcow2'/> <source file='/var/lib/libvirt/images/testvm.qcow2'/>
KVMでWindowsを動かし、virtio化
8 Hits, Last modified: 6 years ago
oドライバ]]も一緒に定義しておく <code console> <disk type='file' device='disk'> <driver name='qemu' type='qcow2'/> <source file='/tmp/test.img'/> <target dev='vdb' bus='virtio'/> </disk> <disk type='file' device='cdrom'> <driver name='qemu'/> <source file='/CDROM/virtio-win-0.1-30.iso'/> <target de
09 qcow2 backing file @01_linux:08_仮想化:kvm
6 Hits, Last modified: 3 years ago
====== 09 qcow2 backing file ====== ===== backing fileを使って、create ===== from.qcow2 から to.qcow2 を作成 <code> qemu-img create -b from... <code> # qemu-img info to.qcow2 image: to.qcow2 file format: qcow2 virtual size: 15G (16106127360 bytes) disk size: 196K cluster_size: 65536 backing file: from.qcow2 Format specific information: comp
仮想化KVM
4 Hits, Last modified: 13 years ago
'/> ↓ <boot dev='cdrom'/> <disk type='file' device='cdrom'> <driver name='qemu'/> <source file='/CDROM/W2k3SP2.iso'/> <target dev='hdc' bu... 0' bus='1' unit='0'/> </disk> <disk type='file' device='floppy'> <driver name='qemu' type='raw'/> <source file='/CDROM/virtio-win-1.1.16.vfd'/> <target de
35 qcow2をマウント @01_linux:08_仮想化:kvm
4 Hits, Last modified: 12 months ago
/code> ==== イメージ内のファイルシステム確認 ==== <code> # virt-filesystems --all --long --uuid -a volume.qcow2 Name ... MBR Size Parent UUID /dev/sda1 filesystem ext4 cloudimg-rootfs - 51835101184 - ... 7d0b2637-958d-4177-a078-d437a92b45eb /dev/sda14 filesystem unknown - - 4194304 - - /dev/sda15 filesystem vfat UEFI - 109422592 -
03 KVM install
2 Hits, Last modified: 6 years ago
> # virt-install \ --name TESTVM \ --ram 2048 \ --file=/dev/VolG00/VolTEST \ --vcpus 4 \ --clock offset=... > # virt-install \ --name TESTVM \ --ram 2048 \ --file=/dev/VolG00/VolTEST \ --vcpus 4 \ --clock offset=
12 ファイルをすべてバックアップ
2 Hits, Last modified: 4 years ago
t/snapshot # tar -C /mnt/snapshot --sparse --one-file-system -zcp --numeric-owner --xattrs . | ssh root... ID番号で保存 -S, --sparse 疎らなファイルを効率的に処理する -l, --one-file-system ローカルなファイル・システムに限定してアーカイブを作成する </code> {{ta
36 qcow2 シンプロ 圧縮
2 Hits, Last modified: 4 years ago
w2 10G # qemu-img info aa.qcow2 image: aa.qcow2 file format: qcow2 virtual size: 10 GiB (10737418240 b... w2 10G # qemu-img info aa.qcow2 image: aa.qcow2 file format: qcow2 virtual size: 10 GiB (10737418240 b
07 qemuでserial接続 @01_linux:08_仮想化:kvm
2 Hits, Last modified: 6 years ago
-vga cirrus \ -name VM1 \ -object memory-backend-file,id=mem0,size=1G,mem-path=/dev/hugepages,share=on ... -numa node,memdev=mem0 \ -boot strict=on \ -drive file=/var/lib/libvirt/images/TESTVM.qcow2,format=qcow2
33 qcow2 中身確認 @01_linux:08_仮想化:kvm
2 Hits, Last modified: 12 months ago
xport LIBGUESTFS_BACKEND=direct guestfish --rw -a file.img -i ### -i を指定すればmountまで自動でやってくれる ### ><fs> run ### ><fs> list-filesystems ### /dev/vda1: ext4 ### /dev/vg_hoge/lv_ro
10 LVM 丸ごとバックアップ
1 Hits, Last modified: 5 years ago
p/boot/ バックアップ # tar -C /mnt/snap --sparse --one-file-system -zcp --numeric-owner --xattrs . | cat > ./
04 KVM cdrom attach @01_linux:08_仮想化:kvm
1 Hits, Last modified: 7 years ago
tach-disk [domain-id] [source] [target] --driver file --type cdrom --mode readonly ===== 例 ===== <cod
34 疑似NVMe Drive @01_linux:08_仮想化:kvm
1 Hits, Last modified: 4 years ago
<qemu:arg value='-drive'/> <qemu:arg value='file=/var/lib/libvirt/images/test.qcow2,format=qcow2,i

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