5, Xen virtual machine extended disk space again a method

With the large use of virtualization technology, the use of virtualization thinking and start more, such as the direct expansion of disk space, I recommend the way to re-add a disk, in line with the normal use of physical machines.

Another way to increase disk space is to directly extend the space of an existing disk, as this is the case with this article.

1. View the virtual machine configuration file

XM List
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2. DD2 virtual machine with/data/dd2.img

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3. Direct expansion of existing virtual disk space

View virtual machine disk File size now

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Direct expansion of virtual machine disk files

DD if=/dev/sdb1 bs=1024m count=4 >>/data/dd2.img

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has been extended to 10G, the following is a virtual machine configuration

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4. Start and enter the virtual machine and partition

Virt-manager &

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(1) Enter the virtual machine console

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(2) View disk partitions

View to disk space is not changed, the size of the disk has been extended to 10G. Add the expanded space directly, you can create another partition, and use it directly. The newly created partition is incorporated directly into the LVM logical volume now.

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(3) Partitioning

Create a new primary partition/dev/xvda3 with the newly added unused disk space behind the disk and identify the disk as an LVM partition

Fdisk/dev/xvda

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5. Merging new partitions into LVM logical volumes

(1) Create a physical volume

Pvcreate/dev/xvda3

PVs

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(2) Creating a logical Volume group

VGs

Vgextend Volgroup/dev/xvda3

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(3) Extending an existing logical volume

Lvs

Lvextend-l +100%free/dev/volgroup/lv_root

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(4) Resize extended logical partition

Resize2fs/dev/volgroup/lv_root

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To the time, add disk space, expand complete.

This article is from the "Calf---xmlgrg" blog, please be sure to keep this source http://xmlgrg.blog.51cto.com/10467412/1792132

5, Xen virtual machine extended disk space again a method