Dell PowerStore 1200T Using the Common Event Enabler 8.x on Windows Platforms - Page 59

Unity and VNX CAVA Information, CAVA concepts, CAVA restrictions and limitations

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A Unity and VNX CAVA Information This section contains CAVA-specific information for Dell Unity and VNX systems. Topics: • CAVA concepts • CAVA restrictions and limitations • CAVA and Data Mover or NAS server • User interface choices • CAVA features • Virus-checking client • Configuring viruschecker.conf • Managing the VC Client CAVA concepts VNX and Unity are resistant to the invasion of viruses because of their architecture. Each VNX Data Mover or Unity NAS server runs data access in realtime software, which is an embedded operating system. Resistance to viruses occurs because third parties are unable to run programs containing viruses on a Data Mover or NAS server. Although the Data Mover or NAS server is resistant to viruses, Windows clients also require virus protection. Virus protection on the client reduces the chance that the client will store an infected file on the server, and protects the client if it opens an infected file. VNX and Unity antivirus solutions use a combination of a VNX Data Mover or Unity NAS server; a CAVA agent; and a third-party antivirus engine. The CAVA software and a third-party AV engine must be installed on a Windows machine in the domain. CAVA restrictions and limitations The following are known CAVA limitations at the time of publication. AV engines Currently, no known limitations exist for the number of AV engines configured in the NAS Server's CEE/CAVA pool. All AV engines are surveyed periodically by the NAS Server to determine which AV engines are online and available. This implies that configuration with many AV engines can cause some delays due to network latency. CAVA servers and CAVA pools Each NAS Server should specify a CAVA pool consisting of a minimum of two CAVA servers. This is specified in the configuration parameters for the NAS server. Databases Do not set up realtime scanning of databases. Accessing a database usually triggers a high number of scans, which in turn can cause a large amount of lag when accessing data. To ensure that the database files are virus free, use the AV engine to schedule regular scans when the database is not in use. File-level retention It is strongly recommended that the AV administrator update the virus definition files on all resident AV engines in the CAVA pools, and periodically run a full file system scan of the file system to detect infected file-level retention (FLR) files. Using VNX File-Level Retention provides detailed information about FLR files. ● For VNX systems, to run a full file scan from the Control Station, use the server_viruschk -fsscan command. ● For Dell Unity systems, to run a full file scan, use the svc_cava command. Unity and VNX CAVA Information 59

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Unity and VNX CAVA Information
This section contains CAVA-specific information for Dell Unity and VNX systems.
Topics:
CAVA concepts
CAVA restrictions and limitations
CAVA and Data Mover or NAS server
User interface choices
CAVA features
Virus-checking client
Configuring viruschecker.conf
Managing the VC Client
CAVA concepts
VNX and Unity are resistant to the invasion of viruses because of their architecture. Each VNX Data Mover or Unity NAS server
runs data access in realtime software, which is an embedded operating system. Resistance to viruses occurs because third
parties are unable to run programs containing viruses on a Data Mover or NAS server.
Although the Data Mover or NAS server is resistant to viruses, Windows clients also require virus protection. Virus protection
on the client reduces the chance that the client will store an infected file on the server, and protects the client if it opens an
infected file.
VNX and Unity antivirus solutions use a combination of a VNX Data Mover or Unity NAS server; a CAVA agent; and a third-party
antivirus engine. The CAVA software and a third-party AV engine must be installed on a Windows machine in the domain.
CAVA restrictions and limitations
The following are known CAVA limitations at the time of publication.
AV engines
Currently, no known limitations exist for the number of AV engines configured in the NAS
Server's CEE/CAVA pool. All AV engines are surveyed periodically by the NAS Server to
determine which AV engines are online and available. This implies that configuration with
many AV engines can cause some delays due to network latency.
CAVA servers and CAVA pools
Each NAS Server should specify a CAVA pool consisting of a minimum of two CAVA servers.
This is specified in the configuration parameters for the NAS server.
Databases
Do not set up realtime scanning of databases. Accessing a database usually triggers a high
number of scans, which in turn can cause a large amount of lag when accessing data.
To ensure that the database files are virus free, use the AV engine to schedule regular scans
when the database is not in use.
File-level retention
It is strongly recommended that the AV administrator update the virus definition files on all
resident AV engines in the CAVA pools, and periodically run a full file system scan of the
file system to detect infected file-level retention (FLR) files.
Using VNX File-Level Retention
provides detailed information about FLR files.
For VNX systems, to run a full file scan from the Control Station, use the
server_viruschk -fsscan
command.
For Dell Unity systems, to run a full file scan, use the
svc_cava
command.
A
Unity and VNX CAVA Information
59