[libvirt-users] pool assumed to have 512B sector
David Cohen
cdavid at physics.technion.ac.il
Tue Aug 23 09:49:41 UTC 2011
Hi,
The xml file used to create the pool :
<pool type='disk'>
<name>guest_images_disk</name>
<source>
<device path='/dev/sdb'/>
<format type='gpt'/>
</source>
<target>
<path>/dev</path>
</target>
</pool>
virsh pool-dumpxml guest_images_disk
<pool type='disk'>
<name>guest_images_disk</name>
<uuid>30247222-c1fb-8749-b833-a73782198d26</uuid>
<capacity>274877904384</capacity>
<allocation>127997440</allocation>
<available>274749903872</available>
<source>
<device path='/dev/sdb'>
<freeExtent start='128000512' end='274877904384'/>
</device>
<format type='unknown'/>
</source>
<target>
<path>/dev</path>
<permissions>
<mode>0700</mode>
<owner>-1</owner>
<group>-1</group>
</permissions>
</target>
</pool>
virsh vol-dumpxml --pool guest_images_disk sdb1
<volume>
<name>sdb1</name>
<key>/dev/sdb1</key>
<source>
<device path='/dev/sdb'>
<extent start='3072' end='128000512'/>
</device>
</source>
<capacity>127997440</capacity>
<allocation>127997440</allocation>
<target>
<path>/dev/sdb1</path>
<format type='none'/>
<permissions>
<mode>0660</mode>
<owner>0</owner>
<group>6</group>
</permissions>
</target>
</volume>
David
On Tuesday 23 August 2011 12:36:10 Daniel P. Berrange wrote:
> On Tue, Aug 23, 2011 at 08:52:56AM +0300, David Cohen wrote:
> > Hi,
> > When creating a dedicated storage pool on a FC attached storage with
> > sector size of 4096B and size of 2TB, the storage pool is created but
> > reported as 1/8 of it's size, the same follows for any volume created in
> > the same storage pool:
> >
> >
> > # virsh pool-info guest_images_disk
> > Name: guest_images_disk
> > UUID: 30247222-c1fb-8749-b833-a73782198d26
> > State: running
> > Persistent: yes
> > Autostart: yes
> > Capacity: 256.00 GB
> > Allocation: 122.07 MB
> > Available: 255.88 GB
>
> What type of pool have you created. You mention FC, which makes me think
> you have a SCSI pool type, but then I would expect 'Available' to always
> be zero, so I guess it must be a different pool type. Can you show the
> pool XML, and also the XML for one of the volumes within it.
>
>
> Daniel
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