Data Protection
357
Titan SiliconServer
Virus Scanning Overview
Virus Scanning is enabled and configured per
EVS
. Only files accessed using the CIFS protocol
are scanned. If a file has not been verified by a Virus Scan Engine as clean, it will need to be
scanned before it can be accessed. However, scanning for viruses when a client is trying to
access the file can take time. To reduce this latency, files are automatically queued to be
scanned as soon as they are created or modified, and then closed. Queued files are scanned
promptly, expediting the detection of viruses in new or modified files and making it unlikely that
a virus infected file will remain dormant on the system for a long period of time.
The Titan maintains a list of file types, the Inclusion List, that allows the administrator to
control which files are scanned (e.g, .exe, .dll, .doc, etc.). The default Inclusion List includes
most file types commonly affected by viruses.
Multiple Virus Scan Engines can be configured to enhance performance and high-availability of
the server. If a Virus Scan Engine fails during a virus scan, Titan automatically redirects the
scan to another Virus Scan Engine.
Caution:
When virus scanning is enabled, Titan must receive notification
from a Virus Scan Engine that a file is clean before allowing access to the
file. As a result, if virus scanning is enabled and there are no Virus Scan
Engines available to service the virus scans, CIFS clients may experience a
temporary loss of data access. To ensure maximum accessibility of data,
configure multiple Virus Scan Engines to service each EVS on which virus
scanning has been enabled.
If virus scanning is temporarily disabled, files will continue to be marked as needing to be
scanned. In this way, if virus scanning is re-enabled, files that were changed will be re-scanned
the next time they are accessed by a CIFS client.
Titan provides
statistics
to monitor virus scanning activity.
Configuring Virus Scanning
To configure virus scanning, the following steps are required:
1.
Configure the Virus Scan Engine(s).
2.
Enable anti-virus support on Titan.
3.
Optionally disable virus scanning on selected
CIFS shares
.