Administrator Guide

• Redirection folders cannot be set on non-empty directories.
• NAS virtual volume backup, restore, replication, and snapshot operations are not supported on the remote target data. It is supported
only on the redirection folders (including the redirection data information) that reside inside the local volume data.
• After the NFSv4 or SMB client is redirected to the remote server and establishes the remote connection, the client continues further
communication with the remote server.
Additional Documentation
For more information about conguring namespace aggregation, see: Using Dell FluidFS Global Namespace
Using FTP
File Transfer Protocol (FTP) is used to exchange les between computer accounts, transfer les between an account and a desktop
computer, or to access online software archives. FTP is disabled by default. Administrators can enable or disable FTP support, and specify
the landing directory (volume, path) on a per-system basis.
FTP user access to a le is dened by le permissions. FTP anonymous users are treated as nobody. Access permission is denied or
granted, depending on the le’s ACLs or UNIX access mode. FTP access respects and interoperates with SMB/NFS le permissions: ACLs,
NFSv4 ACLs, UNIX word, SID owner, and UID ownership. FTP access to a le also considers SMB/NFSv4 open le state and byte-range
locks. It breaks oplocks when needed.
FTP User Authentication
FTP users can authenticate themselves when connecting to the FTP site or to use anonymous access (if allowed by the FTP site). When
authenticated using a user name and password, the connection is encrypted. Anonymous users authenticate using anonymous as the user
name and a valid email address as the password.
FTP Limitations
• The number of concurrent FTP sessions is limited to 800 sessions per NAS appliance.
• Idle FTP connections time out and close after 900 seconds (15 minutes).
• The FTP client does not follow symbolic links, NFS referrals, or SMB wide-links.
• FTP changes in directory structure (create new le, delete, rename) trigger SMB change notications.
• FTP access triggers le-access notication events (the File Access Notication feature).
• FTP presents the underlying le system as case sensitive.
• File names have the following limitations:
– Are case sensitive
– Cannot be longer than 255 characters
– Cannot contain any of the following characters:
◦ . and ..
◦ @Internal&Volume!%File
– Cannot have a sux of four, or multiple of three, characters between two ~ signs (for example, ~1234~ and ~123123~)
Enable or Disable FTP
1 In the Storage view, select a FluidFS cluster.
2 Click the File System tab.
3 In the File System view, select Client Accessibility.
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FluidFS Administration