libstorage-ng
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Holder from a BlkDevice to an Md. More...
#include <MdUser.h>
Public Member Functions | |
virtual MdUser * | clone () const override |
bool | is_spare () const |
Return whether the target device is a spare device. | |
void | set_spare (bool spare) |
Set the target device to be a spare device. More... | |
bool | is_faulty () const |
Return whether the target device is a faulty device. | |
void | set_faulty (bool faulty) |
Set the target device to be a faulty device. More... | |
bool | is_journal () const |
Return whether the target device is a journal device. More... | |
void | set_journal (bool journal) |
Set the target device to be a journal device. More... | |
unsigned int | get_sort_key () const |
Return the sort key. More... | |
void | set_sort_key (unsigned int sort_key) |
Set the sort key. More... | |
Impl & | get_impl () |
const Impl & | get_impl () const |
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Impl & | get_impl () |
const Impl & | get_impl () const |
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Device * | get_source () |
Get the source device of the holder. | |
const Device * | get_source () const |
Get the source device of the holder. More... | |
void | set_source (const Device *source) |
Set the source device of the holder. More... | |
void | set_target (const Device *target) |
Set the target device of the holder. More... | |
sid_t | get_source_sid () const |
Return the storage id (sid) of the source of the holder. More... | |
Device * | get_target () |
Get the target device of the holder. | |
const Device * | get_target () const |
Get the target device of the holder. More... | |
sid_t | get_target_sid () const |
Return the storage id (sid) of the target of the holder. More... | |
bool | operator== (const Holder &rhs) const |
bool | operator!= (const Holder &rhs) const |
Holder * | copy_to_devicegraph (Devicegraph *devicegraph) const |
Copies the holder to the devicegraph. More... | |
bool | exists_in_devicegraph (const Devicegraph *devicegraph) const |
Checks if the holder exists in the devicegraph. | |
bool | exists_in_probed () const |
Checks if the holder exists in the probed devicegraph. | |
bool | exists_in_staging () const |
Checks if the holder exists in the staging devicegraph. | |
bool | exists_in_system () const |
Checks if the holder exists in the system devicegraph. | |
const std::map< std::string, std::string > & | get_userdata () const |
Return the userdata of the holder. | |
void | set_userdata (const std::map< std::string, std::string > &userdata) |
Set the userdata of the holder. | |
Devicegraph * | get_devicegraph () |
Return the devicegraph the holder belongs to. | |
const Devicegraph * | get_devicegraph () const |
Return the devicegraph the holder belongs to. More... | |
Impl & | get_impl () |
const Impl & | get_impl () const |
void | save (xmlNode *node) const ST_DEPRECATED |
Static Public Member Functions | |
static MdUser * | create (Devicegraph *devicegraph, const Device *source, const Device *target) |
Create a holder of type MdUser. More... | |
static MdUser * | load (Devicegraph *devicegraph, const xmlNode *node) |
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static User * | create (Devicegraph *devicegraph, const Device *source, const Device *target) |
Create a holder of type User. More... | |
static User * | load (Devicegraph *devicegraph, const xmlNode *node) |
Protected Member Functions | |
MdUser (Impl *impl) | |
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User (Impl *impl) | |
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Holder (Impl *impl) | |
void | create (Devicegraph *devicegraph, const Device *source, const Device *target) |
Create a holder between source and target in the devicegraph. More... | |
void | load (Devicegraph *devicegraph, const xmlNode *node) |
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static |
Create a holder of type MdUser.
Usually this function is not called directly. Functions like Md::add_device() call it.
HolderAlreadyExists |
unsigned int storage::MdUser::get_sort_key | ( | ) | const |
Return the sort key.
When creating a MD RAID the device list passed to the mdadm command is sorted according to the sort-key. For use-cases see https://fate.suse.com/313521/.
The RAID devices, spare and journal devices are sorted independently. Sorting of devices with the same sort-key is undefined. Any value is allowed but 0 should mean unknown/unspecified.
bool storage::MdUser::is_journal | ( | ) | const |
Return whether the target device is a journal device.
Only one device of an MD RAID can be a journal device. Only for RAID levels 4, 5 and 6.
void storage::MdUser::set_faulty | ( | bool | faulty | ) |
void storage::MdUser::set_journal | ( | bool | journal | ) |
Set the target device to be a journal device.
Changing the value is not supported for RAIDs already created on-disk. Does not work with metadata version 1.0.
Exception |
void storage::MdUser::set_sort_key | ( | unsigned int | sort_key | ) |
Set the sort key.
void storage::MdUser::set_spare | ( | bool | spare | ) |