Storage command line reference¶

Common options¶

• <device> can be specified as one of:

  • DeviceID of appropriate CIM_StorageExtent. This is internal OpenLMI ID of the device and it should be stable across system reboots.
  • Device name directly in /dev directory, such as /dev/sda. This device name is available as Name property of CIM_StorageExtent.
  • Name of MD RAID or logical volume. This method cannot be used when the name is not unique, for example when there are two logical volumes with the same name, allocated from different volume groups. This name is available as ElementName property of CIM_StorageExtent.

• <vg> represents name of a volume group, with or without /dev/ prefix.

• Any <size>, such as size of new partition or new logical volume, can be specified with ‘T’, ‘G’, ‘M’ or ‘K’ suffix, which represents appropriate unit (terabytes, gigabytes etc.) 1K (kilobyte) is 1024 of bytes. The suffix is case insensitive, i.e. 1g = 1G.

storage¶

Basic storage device information.

Usage:

lmi storage list [ <device> ...]

lmi storage show [ <device> ...]

lmi storage tree [ <device> ]

lmi storage depends [ –deep ] [ <device> ...]

lmi storage provides [ –deep ] [ <device> ...]

lmi storage fs <cmd> [<args> ...]

lmi storage luks <cmd> [<args> ...]

lmi storage lv <cmd> [<args> ...]

lmi storage mount <cmd> [<args> ...]

lmi storage partition <cmd> [<args> ...]

lmi storage partition-table <cmd> [<args> ...]

lmi storage raid <cmd> [<args> ...]

lmi storage vg <cmd> [<args> ...]

lmi storage thinpool <cmd> [<args> ...]

lmi storage thinlv <cmd> [<args> ...]

Commands that just display information about devices:

list

List short information about given device. If no devices are given, all devices are listed.

show

Show detailed information about given devices. If no devices are provided, all of them are displayed.

tree

Show tree of devices, similar to lsblk.

If no device is provided, all devices are shown, starting with physical disks.

depends

Show devices, which are required by given devices to operate correctly (= show parents of the devices).

For example, if a Logical Volume is provided, its Volume Group is returned. If ‘deep’ is used, also all Physical Volumes and appropriate disk(s) are returned.

If a device is provided, tree starts with the device and all dependent devices are shown.

provides

Show devices, which are created from given devices (= show children of the devices).

For example, if a disk is provided, all partitions on it are returned. If ‘deep’ is used, all RAIDs, Volume Groups and Logical Volumes indirectly allocated from it are returned too.

Commands that manipulate with devices:

fs

Filesystem and other data format management.

luks

LUKS management (i.e. device encryption).

lv

Logical Volume management.

mount

Mount management.

partition

Partition management.

partition-table

Partition table management.

raid

MD RAID management.

vg

Volume Group management.

thinpool

Thin Pool management.

thinlv

Thin Logical Volume management.

Options:

device

Identifier of the device. Either one of:

• DeviceID of appropriate CIM_StorageExtent object. This is internal OpenLMI ID of the device and it should be stable across system reboots.
• Device name directly in /dev directory, such as ‘/dev/sda’. This device name is available as Name property of CIM_StorageExtent object.
• Name of MD RAID or logical volume. This method cannot be used when the name is not unique, for example when there are two logical volumes with the same name, allocated from different volume groups. This name is available as ElementName property of CIM_StorageExtent object.

–deep

Show all ancestors/children the device, not only the immediate ones.

storage fs¶

Filesystem and other data format management.

Usage:

lmi storage fs list [–all] [ <device> ...]

lmi storage fs create [ –label=<label> ] <fstype> <device> ...

lmi storage fs delete <device> ...

lmi storage fs list-supported

Commands:

list

List filesystems and other data formats (RAID metadata, ...) on given devices. If no devices are provided, all filesystems are listed. If –all option is set, all filesystem, including system ones like tmpfs, cgroups, procfs, sysfs etc are listed.

create

Format device(s) with given filesystem. If more devices are given, the filesystem will span over these devices (currently supported only by btrfs).

For list of available filesystem types, see output of lmi storage fs list-supported.

delete

Delete given filesystem or data format (like partition table, RAID metadata, LUKS, physical volume metadata etc) on given devices.

list-supported

List supported filesystems, which can be used as lmi storage fs create <fstype> option.

storage luks¶

LUKS management (i.e. device encryption).

Usage:

lmi storage luks list

lmi storage luks create [-p <passphrase>] <device>

lmi storage luks open [-p <passphrase>] <device> <name>

lmi storage luks close <device>

lmi storage luks addpass [-p <passphrase>] [-n <new-passphrase>] <device>

lmi storage luks deletepass [-p <passphrase>] <device>

Commands:

list

List available LUKS formats and their clear-text devices (if any).

create

Format given device with LUKS format. Any data on the device will be destroyed.

open

Open given device formatted with LUKS and expose its clear-text data as a new block device.

close

Close given device formatted with LUKS and destroy its clear-text block device.

addpass

Add new passphrase to given LUKS-formatted device. Each device can have up to 8 separate passwords and any of them can be used to decrypt the device.

deletepass

Remove given passphrase from LUKS-formatted device.

Common options:

-p, –passphrase=passphrase

Passphrase. It will be read from the terminal, if it is not provided on command line.

-n, –new-passphrase=passphrase

New passphrase. It will be read from the terminal, if it is not provided on command line.

Open options:

<device>

Device with LUKS format on it.

<name>

Name of the clear-text block device to create.

Close options:

<device>

Device with LUKS format on it, previously opened by ‘lmi storage luks open’.

storage lv¶

Logical Volume management.

Usage:

lmi storage lv list [ <vg> ...]

lmi storage lv create <vg> <name> <size>

lmi storage lv delete <lv> ...

lmi storage lv show [ <lv> ...]

Commands:

list

List available logical volumes on given volume groups. If no volume groups are provided, all logical volumes are listed.

create

Create a logical volume on given volume group.

delete

Delete given logical volume.

show

Show detailed information about given Logical Volumes. If no Logical Volumes are provided, all of them are displayed.

Options:

vg

Name of the volume group, with or without /dev/ prefix.

size

Size of the new logical volume, by default in bytes. ‘T’, ‘G’, ‘M’ or ‘K’ suffix can be used to specify other units (TiB, GiB, MiB and KiB) - ‘1K’ specifies 1 KiB (= 1024 bytes). The suffix is case insensitive, i.e. 1g = 1G = 1073741824 bytes.

‘E’ suffix can be used to specify number of volume group extents, ‘100e’ means 100 extents.

storage mount¶

Mount management.

Usage:

lmi storage mount list [ –all ] [ <target> ... ]

lmi storage mount create <device> <mountpoint> [ (-t <fs_type>) (-o <options>) ]

lmi storage mount delete <target>

lmi storage mount show [ –all ] [ <target> ... ]

Commands:

list

List mounted filesystems with a device attached to them. <target> can be specified either as device names or mountpoints.

create

Mount a specified device on the path given by mountpoint. Optionally, filesystem type, common options (filesystem independent) and filesystem specific options can be provided. If no filesystem type is specified, it is automatically detected.

Options can be provided as a comma-separated string of ‘option_name:value’ items. Possible option names are:

AllowExecution AllowMandatoryLock AllowSUID AllowUserMount AllowWrite Auto Dump FileSystemCheckOrder InterpretDevices Silent SynchronousDirectoryUpdates SynchronousIO UpdateAccessTimes UpdateDirectoryAccessTimes UpdateFullAccessTimes UpdateRelativeAccessTimes

Possible option values for all of the options except for FileSystemCheckOrder are ‘t’, ‘true’, ‘f’, ‘false’. All of them are case insensitive. The FileSystemCheckOrder option’s value is a number.

In case an option is not recognized as being one of the possible options listed above, it’s used as a filesystem dependent option.

Examples:

create /dev/vda1 /mnt -t ext4 -o ‘AllowWrite:F,InterpretDevices:false’

create /dev/vda2 /mnt -o ‘FileSystemCheckOrder:2’

create /dev/vda3 /mnt -o ‘user_xattr,barrier=0’

create /dev/vda4 /mnt -o ‘Dump:t, AllowMandatoryLock:t, acl’

delete

Unmount a mounted filesystem. Can be specified either as a device path or a mountpoint.

show

Show detailed information about mounted filesystems with a device attached to them. <target> can be specified either as device names or mountpoints. <spec>. Optionally, show all mounted filesystems.

storage partition¶

Partition management.

Usage:

lmi storage partition list [ <device> ...]

lmi storage partition create [ –logical | –extended ] <device> [<size>]

lmi storage partition delete <partition> ...

lmi storage partition show [ <partition> ...]

Commands:

list

List available partitions on given devices. If no devices are provided, all partitions are listed.

create

Create a partition on given device.

If no size is given, the resulting partition will occupy the largest available space on disk.

The command automatically creates extended and logical partitions using these rules:

• If no partition type (logical or extended) is provided and MS-DOS partition is requested and there is extended partition already on the device, a logical partition is created.
• If there is no extended partition on the device and there are at most two primary partitions on the device, primary partition is created.
• If there is no extended partition and three primary partitions already exist, new extended partition with all remaining space is created and a logical partition with requested size is created.

delete

Delete given partitions.

show

Show detailed information about given partitions. If no partitions are provided, all of them are displayed.

Options:

size

Size of the new partition volume, by default in sectors. ‘T’, ‘G’, ‘M’ or ‘K’ suffix can be used to specify other units (TiB, GiB, MiB and KiB) - ‘1K’ specifies 1 KiB (= 1024 bytes). The suffix is case insensitive, i.e. 1g = 1G = 1073741824 bytes.

device,

partition

Identifier of the device/partition. Either one of:

• DeviceID of appropriate CIM_StorageExtent object. This is internal OpenLMI ID of the device and it should be stable across system reboots.
• Device name directly in /dev directory, such as ‘/dev/sda’. This device name is available as Name property of CIM_StorageExtent object.
• Name of MD RAID or logical volume. This method cannot be used when the name is not unique, for example when there are two logical volumes with the same name, allocated from different volume groups. This name is available as ElementName property of CIM_StorageExtent object.

–logical

Override the automatic behavior and request logical partition.

–extended

Override the automatic behavior and request extended partition.

storage partition-table¶

Partition table management.

Usage:

lmi storage partition-table list [ <device> ...]

lmi storage partition-table create [ –gpt | –msdos ] <device> ...

lmi storage partition-table show [ <device> ...]

Commands:

list

List partition tables on given device. If no devices are provided, all partition tables are listed.

create

Create a partition table on given devices. The devices must be empty, i.e. must not have any partitions on them. GPT partition table is created by default.

show

Show detailed information about partition table on given devices. If no devices are provided, all of them are displayed.

Options:

device

Identifier of the device. Either one of:

• DeviceID of appropriate CIM_StorageExtent object. This is internal OpenLMI ID of the device and it should be stable across system reboots.
• Device name directly in /dev directory, such as ‘/dev/sda’. This device name is available as Name property of CIM_StorageExtent object.
• Name of MD RAID or logical volume. This method cannot be used when the name is not unique, for example when there are two logical volumes with the same name, allocated from different volume groups. This name is available as ElementName property of CIM_StorageExtent object.

–gpt

Create GPT partition table (default).

–msdos

Create MS-DOS partition table.

storage raid¶

MD RAID management.

Usage:

lmi storage raid list

lmi storage raid create [ –name=<name> ] <level> <device> ...

lmi storage raid delete <device> ...

lmi storage raid show [ <device> ...]

Commands:

list

List all MD RAID devices on the system.

create

Create MD RAID array with given RAID level from list of devices.

delete

Delete given MD RAID devices.

show

Show detailed information about given MD RAID devices. If no devices are provided, all MD RAID devices are displayed.

Options:

device

Identifier of the device. Either one of:

• DeviceID of appropriate CIM_StorageExtent object. This is internal OpenLMI ID of the device and it should be stable across system reboots.
• Device name directly in /dev directory, such as ‘/dev/sda’. This device name is available as Name property of CIM_StorageExtent object.
• Name of MD RAID or logical volume. This method cannot be used when the name is not unique, for example when there are two logical volumes with the same name, allocated from different volume groups. This name is available as ElementName property of CIM_StorageExtent object.

level

RAID level. Supported levels are: 0, 1, 4, 5, 6, 10.

storage vg¶

Volume Group management.

Usage:

lmi storage vg list

lmi storage vg create [ –extent-size=<size> ] <name> <device> ...

lmi storage vg delete <vg> ...

lmi storage vg show [ <vg> ...]

lmi storage vg modify <vg> [ –add=<device> ] ... [ –remove=<device> ] ...

Commands:

list

List all volume groups on the system.

create

Create Volume Group with given name from list of devices.

delete

Delete given Volume Groups.

show

Show detailed information about given Volume Groups. If no Volume Groups are provided, all of them are displayed.

modify

Add or remove Physical Volumes to/from given Volume Group. This command requires OpenLMI-Storage 0.8 or newer.

Options:

device

Identifier of the device. Either one of:

• DeviceID of appropriate CIM_StorageExtent object. This is internal OpenLMI ID of the device and it should be stable across system reboots.
• Device name directly in /dev directory, such as ‘/dev/sda’. This device name is available as Name property of CIM_StorageExtent object.
• Name of MD RAID or logical volume. This method cannot be used when the name is not unique, for example when there are two logical volumes with the same name, allocated from different volume groups. This name is available as ElementName property of CIM_StorageExtent object.

vg

Name of the volume group, with or without /dev/ prefix.

size

Requested extent size of the new volume group, by default in bytes. ‘T’, ‘G’, ‘M’ or ‘K’ suffix can be used to specify other units (TiB, GiB, MiB and KiB) - ‘1K’ specifies 1 KiB (=1024 bytes). The suffix is case insensitive, i.e. 1g = 1G = 1073741824 bytes.

-a <device> , –add=<device>

Device to add to a Volume Group.

-r <device> , –remove=<device>

Device to remove from a Volume Group.

storage thinpool¶

Thin Pool management.

Usage:

lmi storage thinpool list

lmi storage thinpool create <name> <vg> <size>

lmi storage thinpool delete <tp> ...

lmi storage thinpool show [ <tp> ...]

Commands:

list

List all thin pools on the system.

create

Create Thin Pool with given name and size from a Volume Group.

delete

Delete given Thin Pools.

show

Show detailed information about given Thin Pools. If no Thin Pools are provided, all of them are displayed.

Options:

vg

Name of the volume group, with or without /dev/ prefix.

tp

Name of the thin pool, with or without /dev/ prefix.

size

Requested extent size of the new volume group, by default in bytes. ‘T’, ‘G’, ‘M’ or ‘K’ suffix can be used to specify other units (TiB, GiB, MiB and KiB) - ‘1K’ specifies 1 KiB (=1024 bytes). The suffix is case insensitive, i.e. 1g = 1G = 1073741824 bytes.

storage thinlv¶

Thin Logical Volume management.

Usage:

lmi storage thinlv list [ <tp> ...]

lmi storage thinlv create <tp> <name> <size>

lmi storage thinlv delete <tlv> ...

lmi storage thinlv show [ <tlv> ...]

Commands:

list

List available thin logical volumes on given thin pools. If no thin pools are provided, all thin logical volumes are listed.

create

Create a thin logical volume on given thin pool.

delete

Delete given thin logical volume.

show

Show detailed information about given Thin Logical Volumes. If no Thin Logical Volumes are provided, all of them are displayed.

Options:

tp

Name of the thin pool, with or without /dev/ prefix.

size

Size of the new logical volume, by default in bytes. ‘T’, ‘G’, ‘M’ or ‘K’ suffix can be used to specify other units (TiB, GiB, MiB and KiB) - ‘1K’ specifies 1 KiB (= 1024 bytes). The suffix is case insensitive, i.e. 1g = 1G = 1073741824 bytes.