Administrator Guide

2. Click the File System tab.
3. In the File System view, expand NAS Volumes and select a NAS volume.
The NAS Volume Status panel displays the data reduction savings.
FluidFS Data Protection
This section contains information about protecting FluidFS cluster data. Data protection is an important and integral part of any
storage infrastructure. These tasks are performed using the Storage Manager Client.
Managing Antivirus
The FluidFS cluster antivirus service provides real-time antivirus scanning of files stored in SMB shares. The antivirus service
applies only to SMB shares; NFS is not supported. The scan operation is transparent to the client, subject to the availability of
an antivirus server.
Files are scanned when a client tries to read or execute the file.
The antivirus service consists of two components:
● Antivirus servers — one or more network-accessible computers running a supported third-party, ICAP-enabled antivirus
application to provide the antivirus scanning service to the FluidFS cluster.
● A FluidFS cluster antivirus scanning policy specifies file extensions and directories to exclude from scans, an antivirus
scanning file size threshold, and whether to allow or deny access to files larger than the file size threshold.
When an SMB share client requests a file from the FluidFS cluster, the cluster passes the file to an antivirus server for scanning
and then takes one of the following actions:
● If the file is virus-free, the FluidFS cluster permits client access. The FluidFS cluster does not scan that file again, providing it
remains unmodified since the last check.
● If the file is infected, the FluidFS cluster denies client access. The client does not know that the file is infected. Therefore:
○ A file access returns a system-specific file not found state for a missing file, depending on the client's computer.
○ An access denial might be interpreted as a file permissions problem.
Figure 41. Antivirus Scanning
Only storage administrators can recover an uninfected version of the file, or access and process the infected file. To gain access
to an infected file, you must connect to the SMB share through another SMB share on which the antivirus service is disabled.
Otherwise, the FluidFS cluster recognizes the file as infected, and denies access. You can also access the file through an NFS
export, because NFS does not support antivirus scanning.
File transfers between the FluidFS cluster and the anti-virus server are not encrypted, so communication should be protected or
restricted.
Supported Antivirus Applications
For the latest list of supported antivirus applications, see the Dell Fluid File System Support Matrix.
Configuring Antivirus Scanning
To perform antivirus scanning, you must add an antivirus server and then enable antivirus scanning for each SMB share.
NOTE:
If any of the external services are configured with IPv6 link-local addresses, the monitor will always show these
services as Unavailable.
428 FluidFS Administration