As long as you have ample resources on the server, I have not had an issues pertaining to this in the past. There was a POC laptop I had configured a while back with a similar combination and even more products installed. Now web prevent + discover is odd to me however I know atleast one customer who is doing this type of a setup for a limited use.
Pasting the below table as well, as a supplimentary answer to your query:
Collector Name |
Collector Version |
Collection Mechanism |
Supported on SSIM Appliance? |
Supported on Remote SSIM Agent? |
Collector Updates |
Symantec Data Loss Prevention Event Collector |
4.4.11 |
Syslog |
Yes |
Yes |
Added Support DLP 11 in June 2011 LU. |
Symantec DLP WEB Services API Event Collector |
5 |
SymantecDLP sensor |
Yes |
Yes |
Added support for Symantec Data Loss Prevention 11.6 in June 2013 update. |