Modifying a CIFS Share

Prerequisites

You have created a CIFS share.

Procedure

1. Choose Resources > Resources > Share > CIFS Share.
2. Select a desired account from the Account drop-down list in the upper left corner.
3. Click More on the right of a desired CIFS share and select Modify.

   The Modify CIFS Share page is displayed on the right.

   

   You can also click the name of the desired CIFS share. In the upper right corner of the page that is displayed, click Operation and select Modify.

4. Set CIFS share parameters. Modifying a CIFS Share describes related parameters.

   Table 1 CIFS share parameters

   Parameter	Description
   Description	Description of the CIFS share. NOTE: The description can be left blank or contain up to 255 characters.
   Create Default ACL	Determine whether to add a default ACL. This function creates a default ACL (full control rights to everyone; applied to the current directory, its subdirectories, and files in them) for a shared CIFS root directory if the directory has no ACL. You can change the default ACL in follow-up operations. To retain the UNIX mode bits, disable this function.
   Notify	After this function is enabled, a client's modification operations on a directory, such as adding a directory, adding a file, modifying the directory, and modifying a file, can be detected by other clients that are accessing this directory or the parent directory of this directory. Results of the modification operations are displayed after the page is automatically refreshed.
   Continuously Available	This option is used to enable or disable the SMB Failover feature. NOTE: The SMB Failover feature takes effect only after you enable the Oplock configuration item and run command change service cifs smb_global_ca_enable= yes on the CLI to enable the SMB service continuity function for tenants.
   SMB3 Encryption	Determine whether to enable SMB3 encryption. After this function is enabled, the system encrypts the share to ensure data security, but performance deteriorates. NOTICE: Enabling this function affects SMB3 service performance. Check whether this function needs to be enabled. After SMB3 encryption is enabled, only SMB3 clients can access shares by default.
   Unencrypted Client Access	After this function is enabled, clients that do not have encryption capabilities can access the share. NOTICE: After this function is enabled, clients of earlier versions (for example, Windows 7) are allowed to access shares where SMB3 encryption is enabled in plaintext. Check whether this function needs to be enabled. This function takes effect only after the SMB3 encryption function is enabled.
   Oplock	Opportunistic locking (oplock) is a mechanism used to improve client access efficiency and locally buffer files before they are sent to shared storage. This function is not recommended in the following scenarios: Scenarios that have high requirements for data integrity. If oplock is enabled in such scenarios, the local cache of the client may be lost due to network interruption or client faults. If the upper-layer service software does not have a mechanism to ensure data integrity, recovery, or retry, data loss may occur. Scenarios where multiple clients access the same file. If oplock is enabled in such scenarios, system performance will be adversely affected. NOTE: Oplock for a share takes effect only when both oplock for the account and oplock for the share are enabled.
   Lease	Lease allows a client to lock a file using a lease key, and the file locking can be canceled by the server. NOTE: Only clients of SMB 2.1 and later versions support lease. Run the change service cifs enable_leasev2=yes command to enable lease. Lease for a share takes effect only when both lease for the account and lease for the share are enabled.
   ABE	Access-based enumeration. Enabling this function hides files and folders that users do not have permissions to access. NOTE: SMB2 and SMB3 support the ABE function, but SMB1 does not.
   Show Previous Version	After the function of displaying previous versions is enabled, a client can display previous versions and supports version rollback.

5. Click OK.