1. Click the plus symbol in the bottom left corner to open the Add a New Storage Pool Window.

2. Provide a Name for the pool (consisting of alphanumeric characters plus _-.) and select a Type. Proceed with Forward.

3. Specify the needed details in the following window. The data that needs to be entered depends on the type of pool you are creating.

   Typedir:

   • Target Path: Specify an existing directory.

   Typedisk:

   • Target Path: The directory which hosts the devices. The default value /dev should fit in most cases.

   • Format: Format of the device's partition table. Using auto should work in most cases. If not, get the needed format by running the command parted -l on the VM Host Server.

   • Source Path: Path to the device. It is recommended to use a device name from /dev/disk/by-* rather than the simple /dev/sdX, since the latter may change (for example when adding or removing hard disks). You need to specify the path that resembles the whole disk, not a partition on the disk (if existing).

   • Build Pool: Activating this option formats the device. Use with care— all data on the device will be lost!

   Typefs:

   • Target Path: Mount point on the VM Host Server file system.

   • Format: File system format of the device. the default value auto should work.

   • Source Path: Path to the device file. It is recommended to use a device name from /dev/disk/by-* rather than the simple /dev/sdX, since the latter may change (for example when adding or removing hard disks).

   Typeiscsi:

   Get the necessary data by running the following command on the VM Host Server:

   iscsiadm --mode node

   It will return a list of iSCSI volumes with the following format. The elements highlighted with a bold font are the ones needed:

   IP_ADDRESS:PORT,TPGT TARGET_NAME_(IQN)

   • Target Path: The directory containing the device file. Use /dev/disk/by-path (default) or /dev/disk/by-id.

   • Host Name: Host name or IP address of the iSCSI server.

   • Source Path: The iSCSI target name (IQN).

   Typelogical:

   • Target Path: In case you use an existing volume group, specify the existing device path. In case of building a new LVM volume group, specify a device name in the /dev directory that does not already exist.

   • Source Path: Leave empty when using an existing volume group. When creating a new one, specify its devices here.

   • Build Pool: Only activate when creating a new volume group.

   Typempath:

   • Target Path: Support of multipathing is currently limited to making all multipath devices available. Therefore you may enter an arbitrary string here (needed, otherwise the XML parser will fail), it will be ignored anyway.

   Typenetfs:

   • target Path: Mount point on the VM Host Server file system.

   • Format: Network file system protocol

   • Host Name: IP address or hostname of the server exporting the network file system.

   • Source Path: Directory on the server that is being exported.

   Typescsi:

   • Target Path: The directory containing the device file. Use /dev/disk/by-path (default) or /dev/disk/by-id.

   • Source Path: Name of the SCSI adapter.

   	File Browsing
   Using the file browser by clicking on Browse is not possible when operating from remote.

4. Click Finish to add the storage pool.

Procédure 7.1. Listing all Storage Volumes Currently Used on a VM Host Server¶

1. Create an XSLT style sheet by saving the following content to a file, for example, ~/libvirt/guest_storage_list.xsl:

   <?xml version="1.0" encoding="UTF-8"?>
   <xsl:stylesheet version="1.0"
     xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
     <xsl:output method="text"/>
     <xsl:template match="text()"/>
     <xsl:strip-space elements="*"/>
     <xsl:template match="disk">
       <xsl:text>  </xsl:text>
       <xsl:value-of select="(source/@file|source/@dev|source/@dir)[1]"/>
       <xsl:text>&#10;</xsl:text>
     </xsl:template>
   </xsl:stylesheet>

2. Run the following commands in a shell. It is assumed that the guest's XML definitions are all stored in the default location (/etc/libvirt/qemu). xsltproc is provided by the package libxslt.

   SSHEET="$HOME/libvirt/guest_storage_list.xsl"
   cd /etc/libvirt/qemu
   for FILE in *.xml; do
     basename $FILE .xml 
     xsltproc $SSHEET $FILE
   done

1. Edit /etc/libvirt/qemu.conf and set

   lock_manager = "lockd"

2. Start the virtlockd daemon with the following command:

   rcvirtlockd start

3. Restart the libvirtd daemon with:

   rclibvirtd restart

4. Make sure virtlockd is automatically started when booting the system:

   insserv virtlockd