[libvirt-users] pool assumed to have 512B sector

[David Cohen]

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