The SAM 8.0 default heap size allocation for the Global Console is 350 MB. A heap size of 350 MB is sufficient for deployments having 50,000 notifications.
The default heap size allocation for previous versions of SAM was 256 MB.
For the Web Console, the default heap size is 64 MB. A heap size of 64 MB is sufficient for SAM deployments with 15,000 notifications. For deployments with more than 50,000 notifications the heap size should be increased to 350 MB. The VMware Smart Assurance Service Assurance Manager Dashboard Configuration Guide provides detailed heap size considerations for the Web Console and Business Dashboard applets.