A Logical Volume of the Logical Volume Manager (LVM). More...

#include <LvmLv.h>

Inheritance diagram for storage::LvmLv:

Collaboration diagram for storage::LvmLv:

Public Member Functions
const std::string &	get_lv_name () const
	Get logical volume name. More...

void	set_lv_name (const std::string &lv_name)

LvType	get_lv_type () const

unsigned int	get_stripes () const

void	set_stripes (unsigned int stripes)
	Set the number of stripes. More...

unsigned long long	get_stripe_size () const

void	set_stripe_size (unsigned long long stripe_size)

unsigned long long	get_chunk_size () const

void	set_chunk_size (unsigned long long chunk_size)
	Set the chunk size. More...

const LvmVg *	get_lvm_vg () const
	Return volume group this logical volume belongs to. More...

const LvmLv *	get_thin_pool () const
	Return the thin pool for a thin logical volume. More...

unsigned long long	max_size_for_lvm_lv (LvType lv_type) const
	Return the max size in bytes for a new logical volume of type lv_type. More...

LvmLv *	create_lvm_lv (const std::string &lv_name, LvType lv_type, unsigned long long size)
	Create a logical volume with name lv_name and type lv_type in the thin pool. More...

LvmLv *	get_lvm_lv (const std::string &lv_name)

std::vector< LvmLv * >	get_lvm_lvs ()

std::vector< const LvmLv * >	get_lvm_lvs () const

Impl &	get_impl ()

const Impl &	get_impl () const

virtual LvmLv *	clone () const override

Public Member Functions inherited from storage::BlkDevice
const std::string &	get_name () const

void	set_name (const std::string &name)

const Region &	get_region () const

void	set_region (const Region &region)

unsigned long long	get_size () const

void	set_size (unsigned long long size)

std::string	get_size_string () const

bool	is_active () const

const std::string &	get_sysfs_name () const

const std::string &	get_sysfs_path () const

const std::vector< std::string > &	get_udev_paths () const

const std::vector< std::string > &	get_udev_ids () const

bool	is_usable_as_blk_device () const
	Checks whether the blk device is in general usable as a blk device. More...

const std::string &	get_dm_table_name () const
	Return device-mapper table name (dm-table-name for short). More...

void	set_dm_table_name (const std::string &dm_table_name)

BlkFilesystem *	create_blk_filesystem (FsType fs_type)
	Creates a block filesystem on the block device. More...

bool	has_blk_filesystem () const

BlkFilesystem *	get_blk_filesystem ()

const BlkFilesystem *	get_blk_filesystem () const

BlkFilesystem *	create_filesystem (FsType fs_type) ST_DEPRECATED
	Creates a block filesystem on the block device. More...

bool	has_filesystem () const ST_DEPRECATED

BlkFilesystem *	get_filesystem () ST_DEPRECATED

const BlkFilesystem *	get_filesystem () const ST_DEPRECATED

Encryption *	create_encryption (const std::string &dm_name)
	Creates an encryption device on the blk device. More...

void	remove_encryption ()
	Removes an encryption device on the blk device. More...

bool	has_encryption () const

Encryption *	get_encryption ()

const Encryption *	get_encryption () const

Impl &	get_impl ()

const Impl &	get_impl () const

Public Member Functions inherited from storage::Device
sid_t	get_sid () const

bool	operator== (const Device &rhs) const

bool	operator!= (const Device &rhs) const

Device *	copy_to_devicegraph (Devicegraph *devicegraph) const
	Copies the device to the devicegraph. More...

bool	exists_in_devicegraph (const Devicegraph *devicegraph) const
	Checks if the device exists in the devicegraph.

bool	exists_in_probed () const
	Checks if the device exists in the probed devicegraph.

bool	exists_in_staging () const
	Checks if the device exists in the staging devicegraph.

bool	exists_in_system () const
	Checks if the device exists in the system devicegraph.

std::string	get_displayname () const

ResizeInfo	detect_resize_info () const
	Detect the resize info of the device. More...

bool	has_children () const

size_t	num_children () const

bool	has_parents () const

size_t	num_parents () const

std::vector< Device * >	get_children ()

std::vector< const Device * >	get_children () const

std::vector< Device * >	get_parents ()

std::vector< const Device * >	get_parents () const

std::vector< Device * >	get_siblings (bool itself)

std::vector< const Device * >	get_siblings (bool itself) const

std::vector< Device * >	get_descendants (bool itself)

std::vector< const Device * >	get_descendants (bool itself) const

std::vector< Device * >	get_ancestors (bool itself)

std::vector< const Device * >	get_ancestors (bool itself) const

std::vector< Device * >	get_leaves (bool itself)

std::vector< const Device * >	get_leaves (bool itself) const

std::vector< Device * >	get_roots (bool itself)

std::vector< const Device * >	get_roots (bool itself) const

std::vector< Holder * >	get_in_holders ()

std::vector< const Holder * >	get_in_holders () const

std::vector< Holder * >	get_out_holders ()

std::vector< const Holder * >	get_out_holders () const

void	remove_descendants ()

const std::map< std::string, std::string > &	get_userdata () const

void	set_userdata (const std::map< std::string, std::string > &userdata)

Devicegraph *	get_devicegraph ()

const Devicegraph *	get_devicegraph () const

Impl &	get_impl ()

const Impl &	get_impl () const

void	save (xmlNode *node) const

Static Public Member Functions
static LvmLv *	create (Devicegraph *devicegraph, const std::string &vg_name, const std::string &lv_name, LvType lv_type)

static LvmLv *	load (Devicegraph devicegraph, const xmlNode node)

static std::vector< LvmLv * >	get_all (Devicegraph *devicegraph)
	Get all LvmLvs.

static std::vector< const LvmLv * >	get_all (const Devicegraph *devicegraph)
	Get all LvmLvs. More...

static bool	compare_by_lv_name (const LvmLv lhs, const LvmLv rhs)
	Compare (less than) two LvmLvs by lv-name.

Static Public Member Functions inherited from storage::BlkDevice
static std::vector< BlkDevice * >	get_all (Devicegraph *devicegraph)
	Get all BlkDevices.

static std::vector< const BlkDevice * >	get_all (const Devicegraph *devicegraph)
	Get all BlkDevices. More...

static BlkDevice *	find_by_name (Devicegraph *devicegraph, const std::string &name)
	Find a block device by its name. More...

static const BlkDevice *	find_by_name (const Devicegraph *devicegraph, const std::string &name)
	Find a block device by its name. More...

static BlkDevice *	find_by_any_name (Devicegraph *devicegraph, const std::string &name)
	Find a block device by any name including any symbolic links in /dev. More...

static const BlkDevice *	find_by_any_name (const Devicegraph *devicegraph, const std::string &name)
	Find a block device by any name including any symbolic links in /dev. More...

static bool	compare_by_dm_table_name (const BlkDevice lhs, const BlkDevice rhs)
	Compare (less than) two BlkDevices by DM table name.

Static Public Member Functions inherited from storage::Device
static std::vector< Device * >	get_all (Devicegraph *devicegraph)

static std::vector< const Device * >	get_all (const Devicegraph *devicegraph)

static bool	compare_by_sid (const Device lhs, const Device rhs)
	Compare (less than) two Devices by sid.

static bool	compare_by_name (const Device lhs, const Device rhs)
	Compare (less than) two Devices by name. More...

Protected Member Functions
	LvmLv (Impl *impl)

Protected Member Functions inherited from storage::BlkDevice
	BlkDevice (Impl *impl)

Protected Member Functions inherited from storage::Device
	Device (Impl *impl)

void	create (Devicegraph *devicegraph)

void	load (Devicegraph *devicegraph)

Detailed Description

A Logical Volume of the Logical Volume Manager (LVM).

Member Function Documentation

◆ create_lvm_lv()

LvmLv* storage::LvmLv::create_lvm_lv	(	const std::string &	lv_name,
		LvType	lv_type,
		unsigned long long	size
	)

Create a logical volume with name lv_name and type lv_type in the thin pool.

Only supported lv_type is THIN.

Exceptions

Exception

◆ get_all()

static std::vector<const LvmLv*> storage::LvmLv::get_all ( const Devicegraph * devicegraph )

static

Get all LvmLvs.

◆ get_lv_name()

const std::string& storage::LvmLv::get_lv_name ( ) const

Get logical volume name.

This is different from get_name().

◆ get_lvm_lv()

LvmLv* storage::LvmLv::get_lvm_lv ( const std::string & lv_name )

Exceptions

Exception

◆ get_lvm_vg()

const LvmVg* storage::LvmLv::get_lvm_vg ( ) const

Return volume group this logical volume belongs to.

Exceptions

Exception

◆ get_thin_pool()

const LvmLv* storage::LvmLv::get_thin_pool ( ) const

Return the thin pool for a thin logical volume.

Exceptions

Exception

◆ max_size_for_lvm_lv()

unsigned long long storage::LvmLv::max_size_for_lvm_lv ( LvType lv_type ) const

Return the max size in bytes for a new logical volume of type lv_type.

The size may be limited by other parameters, e.g. the filesystem on it.

The max size for thin logical volumes is in general theoretic since a thin pool logical volume should never be overcommited so much.

◆ set_chunk_size()

void storage::LvmLv::set_chunk_size ( unsigned long long chunk_size )

Set the chunk size.

Only thin pools can have a chunk size.

Exceptions

Exception

◆ set_stripe_size()

void storage::LvmLv::set_stripe_size ( unsigned long long stripe_size )

Exceptions

Exception

◆ set_stripes()

void storage::LvmLv::set_stripes ( unsigned int stripes )

Set the number of stripes.

The size of the LV must be a multiple of the number of stripes and the stripe size. Thin LV cannot be striped.

Exceptions

Exception

The documentation for this class was generated from the following file:

/home/abuild/rpmbuild/BUILD/libstorage-ng-3.3.318/storage/Devices/LvmLv.h

Public Member Functions

Static Public Member Functions

Protected Member Functions

Detailed Description

Member Function Documentation

◆ create_lvm_lv()

◆ get_all()

◆ get_lv_name()

◆ get_lvm_lv()

◆ get_lvm_vg()

◆ get_thin_pool()

◆ max_size_for_lvm_lv()

◆ set_chunk_size()

◆ set_stripe_size()

◆ set_stripes()