™.. Sys::Virt::DomainSnapshot - Online Linux Manual PageSection : 3
Updated : 2015-07-23
Source : perl v5.10.1
Note : User Contributed Perl Documentation
NAMESys::Virt::DomainSnapshot − Represent & manage a libvirt guest domain
DESCRIPTIONThe \*(C`Sys::Virt::DomainSnapshot\*(C'\fR module represents a guest domain managed by the virtual machine monitor.
METHODSmy $str = $domss−>get_name() Return the name of the snapshot my $xml = $domss−>get_xml_description($flags) Returns an XML document containing a complete description of the domain's configuration. $domss−>delete($flags) Deletes this snapshot object & its data. The optional $flags parameter controls what should be deleted via the \*(C`Sys::Virt::DomainSnapshot::DELETE_*\*(C'\fR constants. $domss−>revert_to($flags) Revert the domain to the state associated with this snapshot. The optional ​$flags control the state of the vm after the revert via the ​\*(C`Sys::Virt::DomainSnapshot::REVERT_*\*(C'\fR constants. $parentss = $domss−>get_parent(); Return the parent of the snapshot, if any $res = $domss−>is_current() Returns a true value if this is the current snapshot. False otherwise. $res = $domss−>has_metadata() Returns a true value if this snapshot has metadata associated with it. $count = $domss−>num_of_child_snapshots() Return the number of saved snapshots which are children of this snapshot @names = $domss−>list_child_snapshot_names() List the names of all saved snapshots which are children of this snapshot . The names can be used with the \*(C`lookup_snapshot_by_name\*(C'\fR @snapshots = $domss−>list_child_snapshots() Return a list of all snapshots that are children of this snapshot. The elements in the returned list are instances of the Sys::Virt::DomainSnapshot class. This method requires O(n) RPC calls, so the \*(C`list_all_children\*(C'\fR method is recommended as a more efficient alternative. my @snapshots = $domss−>list_all_children($flags) Return a list of all domain snapshots that are children of this snapshot. The elements in the returned list are instances of the Sys::Virt::DomainSnapshot class. The $flags parameter can be used to filter the list of return domain snapshots.
CONSTANTS
SNAPSHOT CREATIONThe following constants are useful when creating snapshots Sys::Virt::DomainSnapshot::CREATE_CURRENT Set the defined snapshot to be the current snapshot Sys::Virt::DomainSnapshot::CREATE_DISK_ONLY Only snapshot the disk, not the memory state Sys::Virt::DomainSnapshot::CREATE_HALT Stop the guest after creating the snapshot Sys::Virt::DomainSnapshot::CREATE_NO_METADATA Do not save any metadata for the snapshot Sys::Virt::DomainSnapshot::CREATE_REDEFINE Replace/set the metadata with the snapshot Sys::Virt::DomainSnapshot::CREATE_QUIESCE Quiesce the guest disks while taking the snapshot Sys::Virt::DomainSnapshot::CREATE_REUSE_EXT Reuse the existing snapshot data files (if any) Sys::Virt::DomainSnapshot::CREATE_ATOMIC Create multiple disk snapshots atomically
SNAPSHOT DELETIONThe following constants are useful when deleting snapshots Sys::Virt::DomainSnapshot::DELETE_CHILDREN Recursively delete any child snapshots Sys::Virt::DomainSnapshot::DELETE_CHILDREN_ONLY Only delete the child snapshots Sys::Virt::DomainSnapshot::DELETE_METADATA_ONLY Only delete the snapshot metadata
SNAPSHOT LISTThe following constants are useful when listing snapshots Sys::Virt::DomainSnapshot::LIST_METADATA Only list snapshots which have metadata Sys::Virt::DomainSnapshot::LIST_ROOTS Only list snapshots which are root nodes in the tree Sys::Virt::DomainSnapshot::LIST_DESCENDANTS Only list snapshots which are descendants of the current snapshot Sys::Virt::DomainSnapshot::LIST_LEAVES Only list leaf nodes in the snapshot tree Sys::Virt::DomainSnapshot::LIST_NO_LEAVES Only list non-leaf nodes in the snapshot tree Sys::Virt::DomainSnapshot::LIST_NO_METADATA Only list snapshots without metadata
SNAPSHOT REVERTThe following constants are useful when reverting snapshots Sys::Virt::DomainSnapshot::REVERT_PAUSED Leave the guest CPUs paused after reverting to the snapshot state Sys::Virt::DomainSnapshot::REVERT_RUNNING Start the guest CPUs after reverting to the snapshot state Sys::Virt::DomainSnapshot::REVERT_FORCE Force the snapshot to revert, even if it is risky to do so
AUTHORSDaniel P. Berrange <berrange@redhat.com>
COPYRIGHTCopyright (C) 2006 Red Hat Copyright (C) 2006−2007 Daniel P. Berrange
LICENSEThis program is free software; you can redistribute it and/or modify it under the terms of either the GNU General Public License as published by the Free Software Foundation (either version 2 of the License, or at your option any later version), or, the Artistic License, as specified in the Perl README file.
SEE ALSOSys::Virt, Sys::Virt::Error, \*(C`http://libvirt.org\*(C'\fR 0
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