Manage SMB using the CLI

This page provides procedures for setting up an SMB cluster over WEKA filesystems and managing the cluster itself, using the CLI.

Using the CLI, you can manage both SMB-W and legacy SMB:

Show the SMB cluster

Command: weka smb cluster

Use this command to view information about the SMB cluster managed by the WEKA system.

Show the SMB domain configuration

Command: weka smb domain

Use this command to view information about the SMB domain configuration.

Create the SMB cluster

Command: weka smb cluster create

Use the following command line to create a new SMB cluster to be managed by the WEKA system:

weka smb cluster create <netbios-name> <domain> <config-fs-name> [--domain-netbios-name domain-netbios-name] [--idmap-backend idmap-backend] [--default-domain-mapping-from-id default-domain-mapping-from-id] [--default-domain-mapping-to-id default-domain-mapping-to-id] [--joined-domain-mapping-from-id joined-domain-mapping-from-id] [--joined-domain-mapping-to-id joined-domain-mapping-to-id] [--encryption encryption] [--smb-conf-extra smb-conf-extra] [--container-ids container-ids]... [--smb-ips-pool smb-ips-pool]... [--smb-ips-range smb-ips-range]...[--symlink symlink]

The weka smb cluster create command creates an SMB-W cluster. To create a legacy SMB cluster, contact the Customer Success Team.

Parameters

Name
Value
Default

netbios-name*

NetBIOS name for the SMB cluster must be 1-15 characters long, using only alphanumeric characters (A-Z, 0-9) and hyphens (-). Names are case-insensitive, cannot start with a hyphen, and must be unique within the network. Spaces and special characters are not allowed. This will be the name of the Active Directory computer object and the hostname part of the FQDN.

domain*

The Active Directory domain to which the SMB cluster will be joined.

​

config-fs-name*

The predefined filesystem for storing persistent cluster-wide protocol configurations. Ensure the filesystem exists; if not, create it. For details, see #dedicated-filesystem-requirement-for-persistent-protocol-configurations

domain-netbios-name

Domain NetBIOS name.

The first part of the domain parameter

idmap-backend

The ID mapping method to use. Possible values: rfc2307 or rid

rfc2307

default-domain-mapping-from-id

The first ID of the range for the default AD ID mapping (for trusted domains that have no defined range). Not supported in SMB-W yet.

4290000001

default-domain-mapping-to-id

The last ID of the range for the default AD ID mapping (for trusted domains that have no defined range). Not supported in SMB-W yet.

4291000000

joined-domain-mapping-from-id

The first ID of the range for the main AD ID mapping.

0

joined-domain-mapping-to-id

The last ID of the range for the main AD ID mapping.

4290000000

encryption

The global encryption policy to use:

  • enabled - enables encryption negotiation but doesn't turn it on automatically for supported sessions and share connections.

  • disabled - doesn't support encrypted connections.

  • desired - enables encryption negotiation and turns on data encryption on supported sessions and share connections.

  • required - enforces data encryption on sessions and share connections. Clients that do not support encryption will be denied access to the server.

SMB-W possible values: enabled, desired, required Legacy SMB possible values: enabled, disabled, desired, required

enabled

smb-conf-extra

Additional SMB configuration options.

container-ids

The container IDs of the containers with a frontend process to serve the SMB service. Minimum of 3 containers.

smb-ips-pool

A pool of virtual IPs, used as floating IPs for the SMB cluster to provide HA to clients.

These IPs must be unique; do not assign these IPs to any host on the network. Format: comma-separated IP addresses.

smb-ips-range

A range of virtual IPs, used as floating IPs for the SMB cluster to provide HA to clients.

These IPs must be unique; do not assign these IPs to any host on the network. Format: A.B.C.D-E Example: 10.10.0.1-100

symlink

Determines if symbolic links are allowed in the SMB cluster.

  • on: Enables symbolic links. Use with caution, as it can introduce security risks by exposing data across shares.

  • off: Disables symbolic links, enhancing security by preventing link-based vulnerabilities.

Important: If a symbolic link in one share points to a file system in another share, users in the first share can access the data in the second share. Ensure you understand the security implications before enabling this option.

Only applicable for SMB-W clusters.

Off

Guidelines for configuring an SMB cluster

  • Enable High Availability (HA):

    • Ensure all floating IPs reside on the same subnet to enable IP takeover for HA.

  • Floating IP requirements:

    • Floating IPs must not be used by any other applications, servers, or WEKA components, including:

      • WEKA system management nodes

      • WEKA system IO nodes

      • WEKA system NFS floating IPs

    • In all-cloud installations, where listing SMB floating IPs is restricted by cloud provider network limitations, access the SMB service via the primary addresses of the cluster nodes.

  • Configure SMB floating IPs:

    • Use the --smb-ips parameter to specify the virtual IPs exposed by the SMB cluster.

    • Clients must connect through one of these virtual IPs to ensure automatic reconnection if an SMB container fails.

  • Customizing SMB library options:

Example command: In this example, an SMB cluster named wekaSMB is created using containers 0-4, within the domain mydomain. The cluster is configured with virtual IPs ranging from 1.1.1.1 to 1.1.1.5.

weka smb cluster create wekaSMB mydomain --container-ids 0,1,2,3,4 --smb-ips-pool 1.1.1.1,1.1.1.2 --smb-ips-range 1.1.1.3-5

Update the SMB cluster

Command: weka smb cluster update

Use the following command line to update an existing SMB cluster:

weka smb cluster update [--encryption encryption] [--smb-ips-pool smb-ips-pool]... [--smb-ips-range smb-ips-range]...[--symlink symlink]

Parameters

Name
Value

encryption

The global encryption policy to use:

  • enabled: enables encryption negotiation but doesn't turn it on automatically for supported sessions and share connections.

  • disabled: doesn't support encrypted connections.

  • desired: enables encryption negotiation and turns on data encryption on supported sessions and share connections.

  • required: enforces data encryption on sessions and share connections. Clients that do not support encryption are denied access to the server.,

Possible values in SMB-W: enabled, desired, required Possible values in legacy SMB: enabled, disabled, desired, required

smb-ips-pool

A pool of virtual IPs, used as floating IPs for the SMB cluster to provide HA to clients.

These IPs must be unique; do not assign these IPs to any host on the network. Format: comma-separated IP addresses.

smb-ips-range

A range of public IPs is used as floating IPs to provide high availability for the SMB cluster to serve the SMB clients. These IPs must be unique; do not assign these IPs to any host on the network. Format: A.B.C.D-E Example: 10.10.0.1-100

symlink

Controls whether symbolic links are supported within the SMB cluster.

Possible values:

  • on: Enables the creation and use of symbolic links within the SMB cluster.

  • off: Disables symbolic links, enhancing security by preventing potential link-based attacks.

Only applicable for SMB-W clusters.

Check the status of SMB cluster readiness

Command: weka smb cluster status

The SMB cluster is comprised of three to eight SMB containers. Use this command to check the status of the SMB containers that are part of the SMB cluster. Once all the SMB containers are prepared and ready, it is possible to join an SMB cluster to an Active Directory domain.

Join an SMB cluster in Active Directory

Command: weka smb domain join

Use the following command line to join the SMB cluster to an Active Directory domain:

weka smb domain join <username> <password> [--server server] [--create-computer create-computer]

Ensure the AD servers are resolvable to all WEKA servers. This resolution enables the WEKA servers to join the AD domain.

Parameters

Name
Value
Default

username*

Name of an AD user with permission to add a server to the domain.

password*

The password of the AD user. This password is not retained or cached.

server

Specifies the remote server for SMB command connections or operations. The command designates the domain controller for domain joining.

The domain controller is automatically identified based on the domain name.

create-computer

The default AD organizational unit (OU) for the computer account is the Computers directory. You can define any OU to create the computer account in - that the joining account has permissions to - such as SMB Servers or Corporate Computers.

The Computers directory.

To join an existing SMB cluster to another Active Directory domain, leave the current Active Directory using the following command line:

weka smb domain leave <username> <password>

On completion of this operation, it is possible to join the SMB cluster to another Active Directory domain.

Delete an SMB cluster

Command: weka smb cluster destroy

Use this command to destroy an SMB cluster managed by the Weka system.

Deleting an existing SMB cluster managed by the WEKA system does not delete the backend WEKA filesystems but removes the SMB share exposures of these filesystems.

Add or remove SMB cluster containers

Command: weka smb cluster containers add

Command: weka smb cluster containers remove

Use these commands to add or remove containers from the SMB cluster.

weka smb cluster containers add [--containers-id containers-id]...

weka smb cluster containers remove [--containers-id containers-id]...

This operation might take some time to complete. During that time, SMB IOs are stalled.

Parameters

Name
Value

containers-id*

Container IDs of containers with a frontend process to serve the SMB service. Specify a comma-separated list with a minimum of 3 containers.

Configure trusted domains

List trusted domains

Command: weka smb cluster trusted-domains

Use this command to list all the configured trusted domains and their ID ranges.

Add trusted domains

Command: weka smb cluster trusted-domains add

Use the following command line to add an SMB trusted domain:

weka smb cluster trusted-domains add <domain-name> <from-id> <to-id>

Parameters

Name
Value

domain-name*

The name of the domain to add.

from-id*

The first ID of the range for the domain ID mapping. The range cannot overlap with other domains.

to-id*

The last ID of the range for the domain ID mapping. The range cannot overlap with other domains

Remove trusted domains

Command: weka smb cluster trusted-domains remove

Use the following command line to remove an SMB-trusted domain:

weka smb cluster trusted-domains remove <domain-id>

Parameters

Name
Value

domain-id*

The internal ID of the domain to remove

List SMB shares

Command: weka smb share

Use this command to list all existing SMB shares.

Add an SMB share

Command: weka smb share add

Use the following command line to add a new share to be exposed by SMB. Ensure the SMB cluster is joined to the Active Directory. For details, see Join an SMB cluster in Active Directory.

weka smb share add <share-name> <fs-name> [--description description] [--internal-path internal-path] [--file-create-mask file-create-mask]  [--directory-create-mask directory-create-mask] [--acl acl] [--map-acls map-acls] [--case-sensitivity case-sensitivity] [--obs-direct obs-direct] [--encryption encryption] [--read-only read-only] [--user-list-type user-list-type] [--allow-guest-access allow-guest-access]
[--enable-ADS enable-ADS] [--hidden hidden] [--vfs-zerocopy-read vfs-zerocopy-read] [--users users]...

The mount mode for the SMB share is readcache and cannot be modified.

Parameters

Name
Value
Default

share-name*

A unique name of the share to add to the filesystem. The share name must adhere to the following rules:

  • Alphanumeric characters: A-Z, a-z, 0-9.

  • Maximum length: 80 characters.

  • Allowed special characters: hyphens (-) and underscores (_).

  • Prohibited special characters: space ( ), backslash (\), slash (/), colon (:), semicolon (;).

  • Prohibited : 0x00 through 0x1F.

  • No reserved names: Avoid using reserved names such as CON, PRN, AUX, NUL, COM1, LPT1. They may cause conflicts.

SMB-W: Do not create the same share name with different case insensitivity.

​

fs-name*

Valid name of the filesystem to share. A filesystem with Required Authentication set to ON cannot be used for SMB share.

​

description

The description of the share received in remote views.

​

internal-path

The internal valid path within the filesystem (relative to its root) which will be exposed.

.

file-create-mask

POSIX permissions for the file created through the SMB share. Numeric (octal) notation. Maximum value: 0777.

0744

directory-create-mask

POSIX permissions for directories created through the SMB share. Numeric (octal) notation. Maximum value: 0777. SMB-W: the specified string must be greater or equal to 0600.

0755

acl

off

map-acl

Specifies the type of access control to use for the share. Options include POSIX, Windows, or Hybrid.

Hybrid ACL allows seamless interoperability between POSIX and Windows systems by exchanging permissions based on timestamps. Regardless of the system it originated from, the most recent permission takes precedence. Only applicable for SMB-W.

POSIX

case-sensitivity

Enables or disables case sensitivity for the specified SMB share. When enabled, the share distinguishes between files with the same name but different capitalization.

This option applies exclusively to SMB-W cluster.

on

obs-direct

A special mount option to bypass the time-based policies.

For details, see #object-store-direct-mount-option Possible values: on, off

off

encryption

The share encryption policy.

cluster_default: The share encryption policy follows the global SMB cluster setting.

desired: If negotiation is enabled globally, it turns on data encryption for this share for clients that support encryption.

required: Enforces encryption for the shares. Clients that do not support encryption are denied when accessing the share. If the global option is disabled, the access is restricted to these shares for all clients. Possible value for SMB-W: cluster_default Possible values: cluster_default , desired, required

cluster_default

read-only

Sets the share as read-only. Users cannot create or modify files in this share. Possible values: on, off

off

user-list-type

The type of initial permissions list for users. Possible values: read_only : List of users who have been denied write access to the share, regardless of the read-only setting. read_write: List of users given write access to the share, regardless of the read-only setting.

valid : List of users that are allowed to log in to this share (empty list = all users are allowed) invalid - list of users that are not allowed to log in to this share

allow-guest-access

Allows connecting to the SMB service without a password. Permissions are as the nobody user account permissions. Possible values: on, off SMB-W: not supported

off

enable-ADS

Enables using Alternate Data Streams (ADS) on a specified SMB share. Possible values: yes, no

macOS clients: If ACLs are disabled (acl=off), set enable-ADS to off.

Windows clients: When enabled, ADS data is stored in the file’s extended attributes (XAttr), which consumes XAttr space.

on

hidden

Sets the share as non-browsable. It will be accessible for mounting and IOs but not discoverable by SMB clients. Possible values: on, off

off

vfs-zerocopy-read

If supported, enable zero-copy reads. This allows data to transfer directly from disk to application memory without intermediate copying, reducing CPU usage and latency and enhancing throughput and efficiency for large file access.

Possible values: on, off.

on

users

A list of users to use with the user-list-type list.

Format: Domain short name followed by group name, for example WEKAAD\internalShareUsers Possible values: Up to 8 users/groups for all lists combined per share.

Empty list

Guidelines for adding an SMB share

  • Adding SMB shares:

    • Example commands:

      weka smb share add rootShare default  
weka smb share add internalShare default --internal-path some/dir --description "Exposed share"

      The first command creates a root SMB share for the default filesystem.

      The second command creates an internal SMB share for the default filesystem with a specified subdirectory and description.

  • Custom SMB library options: For configuring SMB shares with specific library options, contact the Customer Success Team.

  • Setting share permissions: After adding an SMB share, configure POSIX permissions to grant SMB users access. Examples:

    • Grant full access:

      mount -t wekafs smbw-fs /mnt/smbw  
chmod 777 /mnt/smbw  
umount /mnt/smbw

    • Assign group ownership:

      mount -t wekafs smbw-fs /mnt/smbw  
chown :smb-group /mnt/smbw  
umount /mnt/smbw

For more details, see Filesystem permissions and access rights configuration.

Update SMB shares

Command: weka smb share update

Use the following command line to update an existing share:

weka smb share update <share-id> [--encryption encryption] [--read-only read-only] [--allow-guest-access allow-guest-access] [--hidden hidden]

Parameters

Name
Value

share-id*

A valid share ID to update.

encryption

The share encryption policy: desired: turns on data encryption for this share for clients that support encryption if negotiation has been enabled globally.

required: enforces encryption for the shares. Clients that do not support encryption are denied access to the share. If the global option is set to disabled, the access is denied to these shares for all clients. Possible values: cluster_default, desired, required

read-only

Mount the SMB share as read-only.

Possible values: on, off

allow-guest-access

Allow guest access.

Possible values: on, off

hidden

Hide the SMB share.

Possible values: on, off

Control SMB share user-lists

Command: weka smb share lists show

Use this command to view the various user-list settings.

Command: weka smb share lists add

Use the following command line to add users to a share user-list:

weka smb share lists add <share-id> <user-list-type> <--users users>...

Parameters

Name
Value

share-id*

The ID of the share to update.

user-list-type*

The type of permissions list for users: read_only: list of users that do not get write access to the SMB share, regardless of the read-only setting. read_write: list of users get write access to the SMB share, regardless of the read-only setting. valid: list of users allowed to log in to this SMB share service (an empty list means all users are allowed). invalid: list of users that are not allowed to log in to this share SMB service.

users*

A comma-separated list of users to add to the user-list-type list. Can use the @ notation to allow groups of users. For example, root, Jack, @domain\admins. You can set up to 8 users/groups for all lists combined per share.

Command: weka smb share lists remove

Use the following command line to remove users from a share user-list:

weka smb share lists remove <share-id> <user-list-type> <--users users>...

Parameters

Name
Value

share-id*

The ID of the share to be updated.

user-list-type*

The type of permissions list for users: read_only: list of users that do not get write access to the SMB share, regardless of the read-only setting. read_write: list of users get write access to the SMB share, regardless of the read-only setting. valid: list of users allowed to log in to this SMB share service (an empty list means all users are allowed). invalid: list of users not allowed to log in to this SMB share service.

users*

A comma-separated list of users to remove from the user-list-type list. Can use the @ notation to allow groups of users, e.g. root, Jack, @domain\admins. You can set up to 8 users/groups for all lists combined per share.

Command: weka smb share lists reset

Use the following command line to remove all users from a share user-list:

weka smb share lists reset <share-id> <user-list-type>

Parameters

Name
Value

share-id*

The ID of the share to be updated

user-list-type*

The type of permissions list to reset: read_only: list of users that do not get write access to the SMB share, regardless of the read-only setting. read_write: list of users get write access to the SMB share, regardless of the read-only setting. valid: list of users allowed to log in to this SMB share service (an empty list means all users are allowed). invalid: list of users not allowed to log in to this SMB share service.

Remove SMB shares

Command: weka smb share remove

Use the following command line to remove a share exposed to SMB:

weka smb share remove <share-id>

Parameters

Name
Value

share-id*

The ID of the share to remove.

Example: The following is an example of removing an SMB share defined as ID 1:

weka smb share remove 1

Control SMB access based on hosts' IP/name

You can control which hosts are permitted to access the SMB share. The maximum number of share host access definitions across all shares is 1024.

SMB-W supports access based on the host IP addresses (but not host names).

Command: weka smb share host-access list

Use this command to view the various host access settings.

Command: weka smb share host-access add

Use the following command line to add a host to the allow/deny list:

weka smb share host-access add <share-id> <mode> <--ips ips> <--hosts hosts>

Parameters

Name
Value

share-id*

The ID of the share to update. Mandatory for the share-level command.

mode*

The access mode of the host. Possible values: allow, deny

ips

A comma-separated list of host IP addresses to allow or deny. Must provide at least one of the IP addresses. Format example for multiple IPs: 192.

192.168. 192.168.1 192.168.1.1/24 192.168.1.2, 192.168.1.2

hosts

Host names to allow/deny.

  • You must provide at least one of the hostnames

  • Separate host names with spaces.

In SMB-W, use the ips parameter instead of hosts.

Command: weka smb share host-access remove

Use the following command line to remove hosts from the allow or deny list.

weka smb share host-access remove <share-id> <hosts>

Parameters

Name
Value

share-id*

The ID of the share to update. Mandatory for the share-level command.

hosts*

A list of hostnames you want to remove from access.

  • Separate host names with spaces.

  • In SMB-W, use the IP addresses displayed under the HOST column when running the corresponding list command.

  • In legacy SMB, use the names displayed under the HOSTNAME column when running the corresponding list command.

Command: weka smb share host-access reset

Use the following command line to remove all hosts from the allow or deny list:

weka smb share host-access reset <share-id> <mode>

Parameters

Name
Value

share-id*

The ID of the share to update. Mandatory for the share-level command.

mode*

The specified access mode will remove all associated hosts from the list.

Possible values: allow, deny.

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