stratis [GLOBAL OPTIONS] pool <command> [args] [COMMAND OPTIONS] stratis [GLOBAL OPTIONS] filesystem|fs <command> [args] [COMMAND OPTIONS] stratis [GLOBAL OPTIONS] blockdev <command> [args] [COMMAND OPTIONS] stratis [GLOBAL OPTIONS] key <command> [args] [COMMAND OPTIONS] stratis [GLOBAL OPTIONS] report <report_name> stratis [GLOBAL OPTIONS] daemon <redundancy|version>
stratis is a command-line tool to create, modify, and destroy Stratis pools, and the filesystems allocated from the pool.
Stratis creates a pool from one or more block devices (blockdevs), and then enables multiple filesystems to be created from the pool. The user can set keys for use with pool encryption.
Show stratis-cli version.
- --help, -h
Show help on command.
(For debugging.) Allow exceptions raised during execution to propagate.
(For listing.) Print pool and filesystem UUIDs without hyphens for list commands.
- pool create [--redundancy <redundancy>] [--key-desc <key_desc>] [--clevis <(nbde|tang|tpm2)> [--tang-url <tang_url>] [<(--thumbprint <thp> | --trust-url)>] <pool_name> <blockdev> [<blockdev>..]
Create a pool from one or more block devices, with the given pool name.
- pool list
List all pools on the system.
- pool rename <old_pool_name> <new_pool_name>
Rename a pool.
- pool destroy <pool_name>
Destroy a pool and all the filesystems created from it.
- pool add-data <pool_name> <blockdev> [<blockdev>..]
Add one or more blockdevs to an existing pool, to enlarge its storage capacity.
- pool init-cache <pool_name> <blockdev> [<blockdev>..]
Initialize a cache for an existing pool. Add one or more blockdevs to a pool, to be used as cache instead of additional storage. Typically, smaller and faster drives, such as SSDs, are used for this purpose.
- pool add-cache <pool_name> <blockdev> [<blockdev>..]
Add one or more blockdevs to an existing pool with an initialized cache.
- pool unlock <(keyring | clevis)>
Unlock all devices that are part of an encrypted pool registered with stratisd but that have not yet been opened. The available unlock methods are keyring or clevis.
- pool bind <(nbde|tang)> <pool name> <url> <(--thumbprint <thp> | --trust-url)>
Bind the devices in the specified pool to a supplementary encryption mechanism that uses NBDE (Network-Bound Disc Encryption). tang is an alias for nbde.
- pool bind tpm2 <pool name>
Bind the devices in the specified pool to a supplementary encryption mechanism that uses TPM 2.0 (Trusted Platform Module).
- pool bind keyring <pool name> <keydesc>
Bind the devices in the specified pool to a supplementary encryption mechanism using a key in the kernel keyring.
- pool rebind clevis <pool name>
Rebind the devices in the spcified pool using the Clevis configuration with which the devices in the pool were previously bound.
- pool rebind keyring <pool_name> <keydesc>
Rebind the devices in the specified pool using the specified key description.
- pool unbind <(clevis|keyring)> <pool name>
Unbind the devices in the specified pool from the specified encryption mechanism.
- pool explain <code>
Explain any error code that might show up in the Alerts column when listing a pool.
- filesystem create <pool_name> <fs_name> [<fs_name>..] [--size <size>]
Create one or more filesystems from the specified pool. If --size option is specified, make each filesystem the specified size. Otherwise, accept the stratisd default. NOTE: There is a temporary restriction on the number of filesystems that can be specified with this command. Specifying more than one filesystem will result in an error.
- filesystem snapshot <pool_name> <fs_name> <snapshot_name>
Snapshot the filesystem in the specified pool.
- filesystem list [pool_name]
List all filesystems that exist in the specified pool, or all pools, if no pool name is given.
- filesystem destroy <pool_name> <fs_name> [<fs_name>..]
Destroy one or more filesystems that exist in the specified pool.
- filesystem rename <pool_name> <fs_name> <new_name>
Rename a filesystem.
- blockdev list [pool_name]
List all blockdevs that make up the specified pool, or all pools, if no pool name is given.
- key list
List all key-descriptions in the kernel keyring that can be used for encryption.
- key set <(--keyfile-path <path> | --capture-key)> <key_desc>
Set a key in the kernel keyring for use with encryption.
- key reset <(--keyfile-path <path> | --capture-key)> <key_desc>
Reset the key data of an existing key in the kernel keyring.
- key unset <key_desc>
Unset a key in the kernel keyring so it is no longer available for encryption operations.
- report <report_name>
Get a report from the daemon regarding its internal state. The engine_state_report name will be supported in future releases. Any other report name should be considered unstable and may be removed in a future release. The JSON schema of any report must always be considered unstable.
- daemon redundancy
List the redundancy levels that the Stratis service supports.
- daemon version
Show the Stratis service’s version.
The redundancy for the created pool. The only option is "none" which is also the default.
The key description of the key that should be used to encrypt the created pool. The key description must correspond to a key set in the kernel keyring with the key command.
- --keyfile-path <path> | --capture-key
These mutually exclusive options allow a user to specify a key used for encryption in one of two ways. The --keyfile-path option requires an argument, the path to a file containing the key. If the --capture-key option is selected instead, the user must enter the key at the ensuing prompt. The key value is terminated at the first newline character that the user enters, and does not include the newline character. On the other hand, if the file specified as an argument for the --keyfile-path option contains a newline character anywhere, the newline character will be included in the key value.
- --thumbprint <thp> | --trust-url
These mutually exclusive options allow a user to specify that a tang server’s URL should be trusted and the server’s credentials accepted without verification, or to supply a previously provided thumbprint for verification.
- --tang-url <url>
If creating a pool encrypted via NBDE using a tang server, specifies the URL of the server.
- --clevis <(nbde | tang | tpm2)>
The clevis method that should be used to encrypt the created pool.
- --size <size spec>
Used to specify the size of, e.g., a filesystem. The specification format must follow the standard size specification format for input (see below).
Size Specification Format for Input
The format of a size specification is '<magnitude><unit specifier>' where the magnitude must be a decimal integer and the unit specifier may be any of 'B', 'KiB', 'MiB', 'GiB', 'TiB'. or 'PiB'.
Sets a timeout for any Stratis D-Bus call. If this environment variable is not set, a default value of 120 seconds is used for the timeout. The accepted STRATIS_DBUS_TIMEOUT environment variable values are:
- an integer between 0 (inclusive) and 1073741823 (inclusive), which represents the timeout length in milliseconds
- -1, which represents the libdbus default timeout
List Output Fields
FIELDS for stratis pool list
The name of the pool.
- Total Physical
The physical usage statistics for the pool (Total / Used / Free).
Boolean valued properties that the pool may have. Each property has a two-letter camel-case code. If the pool does not have the property, a ~, for negation, is prepended to the property code. If the engine experienced an error when obtaining the property, a "?", representing "unknown", is prepended to the property code. The property codes are: Ca - indicates the pool has a cache, Cr - indicates the pool is encrypted.
The UUID of the pool.
Any unusual or urgent information about the pool of which the user should be made aware.
FIELDS for stratis filesystem list
- Pool Name
The name of the pool containing the filesystem.
The name of the filesystem.
The size of the filesystem (Total / Used / Free).
The time the filesystem was created.
The device path to use for mounting the filesystem.
The UUID of the filesystem.
FIELDS for stratis blockdev list
- Pool Name
The name of the pool using the block device.
- Device Node
The device node of the block device. A second device node will be displayed in parentheses if the block device is encrypted. This device node is the device node of the associated dm-crypt device.
- Physical Size
The total size of the device on which stratisd places Stratis metadata. If the device is encrypted, this size will be slightly smaller than the total size of the device specified by the user; it will be the size of the associated dm-crypt device.
The data tier type ("Data" or "Cache")
FIELDS for stratis key list
The key description corresponding to a key in the kernel keyring that that can be used for encryption.
Encryption and a cache are mutually exclusive choices. If a pool is encrypted, an attempt to initialize a cache will result in an error.
There is a restriction on the total size of the cache device of 32 TiB. Adding devices to the cache so that the cumulative size of all the devices in the cache exceeds 32 TiB will result in an error.
If a block device appears to be already in use, stratisd will refuse to claim it. To allow use with stratisd, any signature on the device must first be erased. Please carefully verify the identity and availability of the device before taking such a step.
Example 1. Creating a Stratis pool
stratis pool create mypool /dev/sdb /dev/sdc
Example 2. Creating an encrypted pool
stratis key set --capture-key someKeyDescription
stratis pool create --key-desc someKeyDescription mypool /dev/sdb /dev/sdc
Example 3. Creating a filesystem from a pool
stratis filesystem create mypool data1
Example 4. Binding a pool’s devices to use an NBDE policy for decryption
stratis pool bind nbde --trust-url mypool someTangServerUrl
mount(8), umount(8), fstab(5)
Reporting Bugs & Development
- GitHub for issues and development
- Mailing list
email@example.com for general development discussion
- Unknown values
If the stratisd D-Bus API returns values that stratis-cli cannot interpret, stratis-cli will substitute "???". If encountered, upgrading to the latest version of stratis-cli, or filing an issue, is recommended.
- Unobtainable values
If the stratisd D-Bus API indicates that a value is unobtainable, stratis-cli will substitute "FAILURE". This may indicate something wrong with the pool, blockdev, or filesystem. In some cases, restarting stratisd may resolve the issue.
stratis-cli is licensed under the Apache License, Version 2.0. Software distributed under this license is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either expressed or implied.