Dell PowerStore Configuring SMB

File-level retention (FLR) enables you to prevent modifications or deletion of locked for a specified retention period. Protecting a file system using FLR enables you to create a permanent, and unalterable set of files and directories. FLR ensures data integrity and accessibility, simplifies archiving procedures for administrators and improves storage management flexibility.

There are two levels of file-level retention:

• Enterprise (FLR-E) - Protects data from changes that are made by users and storage administrators using SMB, NFS, and FTP. An administrator can delete an FLR-E file system which includes locked files.
• Compliance (FLR-C) - Protects data from changes that are made by users and storage administrators using SMB, NFS, and FTP. An administrator cannot delete an FLR-C file system which includes locked files. FLR-C complies with SEC rule 17a-4(f).

The following restrictions apply:

• File-level retention is available on unified PowerStore system 3.0 or later.
• FLR is not supported in VMware file systems.
• Enabling a file-level retention for a file system and the level of FLR are set at file system creation time and cannot be modified.
• FLR-C does not support restoring from a snapshot.
• When refreshing using a snapshot, both file systems must be of the same FLR level.
• When replicating a file system, source and destination file systems must be of the same FLR level.
• A cloned file system has the same FLR level as the source (cannot be modified).

The FLR mode is displayed in the File Systems screen.