The InMemoryFilesystemSize setting in Symantec Protection Engine (SPE) 8.1+ now has a maximum size of 128 GB. Previous versions had a maximum size of 4GB.
We recommend setting the InMemoryFilesystemSize and InMemoryFileScanCacheSize settings to 40% of the installed RAM on the scanner. These settings can be set using the following xmlmodifier commands:
xmlmodifier -s //filtering/Container/InMemoryFilesystemSize/@value <value> filtering.xml xmlmodifier -s //filtering/Container/InMemoryFileScanCacheSize/@value <value> filtering.xml
<value> with the size in megabytes.
The xmlmodifier tool is located in
<install dir>/bin on Linux and
<install dir> on Windows. It should be run from the commandline.