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arcserve-KB : Troubleshoot throughput drop issue when Backup/Restore jobs are running on environment where anti-virus is enabled.

Last Update: 2016-05-20 09:15:22 UTC
Description: This document helps in resolving throughput drop issue when Backup/Restore jobs are running on environment where anti-virus is enabled.

Problem: Backup/Restore job throughput drops when anti-virus is scanning opened files accessed by Arcserve Backup.

    Note:

       Antivirus services work like a filter, letting through or blocking data entering it. However, another aspect    of the same issue is time, that is. the time required to execute the filtering algorithm. The time increase rises to 250-600 per cent. This means that when the anti-virus monitor is switched on, disk operations can be performed as much as six times more slowly.



Solution: Better performance in throughput can be expected when following one of the below procedures: 

1)While Using McAfee:

(a)To exclude Arcserve Backup  paths from scanning:

1.Click Start, Programs, McAfee, VirusScan Console.

2.Double-click On-Access Scanner.

3.Select Default Processes.

4.In the Exclusions tab, click Exclusions, Add.

5.From What to exclude, select By name/location.

6.Click Browse to select:
C:\Program Files\Arcserve\

7.Add two asterisks (**) to the path as wildcards after each path has been added.

Example:

C:\Program Files\Arcserve\**
C:\Program Files (x86)\Arcserve\**


8.Select Also exclude subfolders.

9.From When to exclude, select On read and On write.

                                              OR

         (b) To configure McAfee not to scan files opened for backup:

1.Click Start, Programs, McAfee, VirusScan Console.

2.Double-click On-Access Scanner.

3.Select Default Processes.

4.In the Scan Items tab, under Scan files, deselect Opened for backup.

5.Repeat this for Low-Risk Processes and High-Risk Processes.

6.Click OK.

NOTE:  Disable the Opened for Backup option on Media Servers and Remote Agents. This can be done locally or using ePolicy Orchestrator.

(2) While Using Microsoft security essentials:

You can use the options Excluded files and locations, and Excluded file types.


(3) Similarly for all other antivirus you can use exclude option. To exclude the content of an entire drive, you can use the symbol “*” as a wildcard. 

 Example: To exclude scanning of the entire C:\drive, you would enter C:\* in the Exclusion field. 
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