您好,登錄后才能下訂單哦!
本篇內容介紹了“KVM虛擬機怎么擴展磁盤空間”的有關知識,在實際案例的操作過程中,不少人都會遇到這樣的困境,接下來就讓小編帶領大家學習一下如何處理這些情況吧!希望大家仔細閱讀,能夠學有所成!
KVM支持在線擴展磁盤空間,支持RHEL系列6以上的版本
列出在線虛擬機磁盤
[root@e3 images]# virsh list --all Id 名稱 狀態 ---------------------------------------------------- 29 centos6.6 running 41 centos6.5 running - kvm001 關閉 - kvm002 關閉 - kvm003 關閉 - template 關閉 [root@e3 images]# virsh domblklist centos6.5 #列出在線虛擬機磁盤情況 目標 源 ------------------------------------------------ vda /data/kvm/images/centos6.5.qcow2 [root@e3 images]#
創建一塊qcow2磁盤并在線添加
[root@e3 images]# qemu-img create -f qcow2 centos6.5-add.qcow2 5G #創建一塊5G大小的硬盤 Formatting 'centos6.5-add.qcow2', fmt=qcow2 size=5368709120 encryption=off cluster_size=65536 lazy_refcounts=off [root@e3 images]# ll centos6.5-add.qcow2 -rw-r--r--. 1 root root 197120 1月 21 18:31 centos6.5-add.qcow2 #在線添加磁盤 [root@e3 images]# virsh attach-disk centos6.5 /data/kvm/images/centos6.5-add.qcow2 vdb --cache=none --subdriver=qcow2 ## 成功附加磁盤
查看
[root@e3 images]# virsh domblklist centos6.5 目標 源 ------------------------------------------------ vda /data/kvm/images/centos6.5.qcow2 vdb /data/kvm/images/centos6.5-add.qcow2 #添加成功 #切換虛擬機里查看 [root@kvm003 ~]# fdisk -l Disk /dev/vda: 32.2 GB, 32212254720 bytes 16 heads, 63 sectors/track, 62415 cylinders Units = cylinders of 1008 * 512 = 516096 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000903e2 Device Boot Start End Blocks Id System /dev/vda1 * 3 1018 512000 83 Linux Partition 1 does not end on cylinder boundary. /dev/vda2 1018 41611 20458496 8e Linux LVM Partition 2 does not end on cylinder boundary. Disk /dev/mapper/VolGroup-lv_root: 19.9 GB, 19906166784 bytes 255 heads, 63 sectors/track, 2420 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/mapper/VolGroup-lv_swap: 1040 MB, 1040187392 bytes 255 heads, 63 sectors/track, 126 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/vdb: 5368 MB, 5368709120 bytes #添加的 16 heads, 63 sectors/track, 10402 cylinders Units = cylinders of 1008 * 512 = 516096 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000
“KVM虛擬機怎么擴展磁盤空間”的內容就介紹到這里了,感謝大家的閱讀。如果想了解更多行業相關的知識可以關注億速云網站,小編將為大家輸出更多高質量的實用文章!
免責聲明:本站發布的內容(圖片、視頻和文字)以原創、轉載和分享為主,文章觀點不代表本網站立場,如果涉及侵權請聯系站長郵箱:is@yisu.com進行舉報,并提供相關證據,一經查實,將立刻刪除涉嫌侵權內容。