12. File share management

UCS supports the central management of directory shares. A share registered via the UMC module Shares is created on an arbitrary UCS server system as part of the UCS domain replication.

Provision for accessing clients can occur via CIFS (supported by Windows/Linux clients) and/or NFS (primarily supported by Linux/Unix). The NFS shares managed in the UMC module can be mounted by clients both via NFSv3 and via NFSv4.

If a file share is deleted on a server, the shared files in the directory are preserved.

To be able to use access control lists on a share, the underlying Linux file system must support POSIX ACLs. In UCS the file systems ext4 and XFS support POSIX ACLs. The Samba configuration also allows storing DOS file attributes in extended attributes of the Unix file system. To use extended attributes, the partition must be mounted using the mount option user_xattr.

Chapter contents:

• 12.1. Access rights to data in shares
• 12.2. Management of shares via UMC module
  • 12.2.1. Shares UMC module - General tab
  • 12.2.2. Shares UMC module - NFS tab
    • 12.2.2.1. Shares UMC module - NFS group
    • 12.2.2.2. Shares UMC module - NFS custom settings group
  • 12.2.3. Shares UMC module - Samba tab
    • 12.2.3.1. Shares UMC module - Samba group
    • 12.2.3.2. Shares UMC module - Samba permissions group
    • 12.2.3.3. Shares UMC module - Samba extended permissions group
    • 12.2.3.4. Shares UMC module - Samba options group
    • 12.2.3.5. Shares UMC module - Samba custom settings group
  • 12.2.4. Shares UMC module - Options tab
• 12.3. Support for MSDFS
• 12.4. Configuration of file system quota
  • 12.4.1. Activating file system quota
  • 12.4.2. Configuring file system quota
  • 12.4.3. Evaluation of quota during login
  • 12.4.4. Querying the quota status by administrators or users