База знаний » GNU/Linux

h1. Libvirt blockresize

host: # *lvresize -L +44g mirror/kvm602-guest-storage*

<pre>

Using stripesize of last segment 64.00 KiB

Extending logical volume kvm602-guest-storage to 92.00 GiB

Logical volume kvm602-guest-storage successfully resized

</pre>

host: # *lvs --units k mirror/kvm602-guest-storage*

<pre>

  LV                       VG     Attr   LSize

  kvm602-guest-storage     mirror -wi-ao 96468992.00k

</pre>

host:~# *virsh*

<pre>

Welcome to virsh, the virtualization interactive terminal.

Type:  'help' for help with commands

       'quit' to quit

</pre>

virsh # *list*

<pre>

virsh # list

 Id    Name                           State

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

...

 7     kvm602-guest                   running

...

</pre>

virsh # *domblklist kvm602-guest*

<pre>

Target     Source

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

vda        /dev/mirror/kvm602-guest-root

vdb        /dev/mirror/kvm602-guest-storage

</pre>

virsh # *blockresize kvm602-work-backup --path /dev/mirror/kvm602-guest-storage --size 96468992*

<pre>

Block device '/dev/mirror/kvm602-work-storage' is resized

</pre>

Смотрим, чтобы ядро было старше 3.0

guest # *uname -r*

<pre>

3.2.0-0.bpo.4-amd64

</pre>

guest # *dmesg |tail*

<pre>

[838729.810179] vdb: detected capacity change from 51539607552 to 98784247808

</pre>

guest # *blockdev --rereadpt /dev/vdb*

guest # *pvresize /dev/vdb*

<pre>

  Physical volume "/dev/vdb" changed

  1 physical volume(s) resized / 0 physical volume(s) not resized

</pre>