1Sys::Virt::StorageVol(3U)ser Contributed Perl DocumentatiSoyns::Virt::StorageVol(3)
2
3
4
6 Sys::Virt::StorageVol - Represent & manage a libvirt storage volume
7
9 The "Sys::Virt::StorageVol" module represents a storage volume managed
10 by libvirt. A storage volume is always associated with a containing
11 storage pool ("Sys::Virt::StoragePool").
12
14 my $name = $vol->get_name()
15 Returns a string with a locally unique name of the storage vol
16
17 my $name = $vol->get_key()
18 Returns a string with a globally unique key for the storage vol
19
20 my $name = $vol->get_path()
21 Returns a string with a locally unique file path of the storage vol
22
23 my $xml = $vol->get_xml_description()
24 Returns an XML document containing a complete description of the
25 storage vol's configuration
26
27 $vol->delete($flags)
28 Immediately delete the storage volume freeing its storage
29 resources. The "flags" parameter indicates any special action to
30 be taken when deleting the volume.
31
32 $vol->wipe($flags = 0)
33 Clear the data in the storage volume to avoid future information
34 leak. The "flags" parameter indicates any special approach to be
35 taken when wiping the data. It defaults to zero, which causes the
36 volume to be filled with zeros.
37
38 my %info = $vol->get_info()
39 Retrieve live information about the storage volume. The returned
40 %info hash contains three keys. "type" indicates whether the volume
41 is a file or block device. "capacity" provides the maximum logical
42 size of the volume. "allocation" provides the current physical
43 usage of the volume. The allocation may be less than the capacity
44 for sparse, or grow-on-demand volumes. The allocation may also be
45 larger than the capacity, if there is a metadata overhead for the
46 volume format.
47
49 The following sets of constants are useful when dealing with storage
50 volumes
51
52 VOLUME TYPES
53 The following constants are useful for interpreting the "type" field in
54 the hash returned by the "get_info" method
55
56 Sys::Virt::StorageVol::TYPE_FILE
57 The volume is a plain file
58
59 Sys::Virt::StorageVol::TYPE_BLOCK
60 The volume is a block device
61
62 DELETE MODES
63 The following constants are useful for the "flags" parameter of the
64 "delete" method
65
66 Sys::Virt::StorageVol::DELETE_NORMAL
67 Do a plain delete without any attempt to scrub data.
68
69 Sys::Virt::StorageVol::DELETE_ZEROED
70 Zero out current allocated blocks when deleteing the volume
71
73 Daniel P. Berrange <berrange@redhat.com>
74
76 Copyright (C) 2006-2009 Red Hat Copyright (C) 2006-2009 Daniel P.
77 Berrange
78
80 This program is free software; you can redistribute it and/or modify it
81 under the terms of either the GNU General Public License as published
82 by the Free Software Foundation (either version 2 of the License, or at
83 your option any later version), or, the Artistic License, as specified
84 in the Perl README file.
85
87 Sys::Virt, Sys::Virt::Error, "http://libvirt.org"
88
89
90
91perl v5.12.3 2010-05-19 Sys::Virt::StorageVol(3)