Recommended minimum resources by controller type

Each platform you migrate requires a minimum of resources in preparation to run the new system.

The following table summarizes recommended resource requirements before converting to N4.

JACE type/model Minimum Free Disk Space, in MB Java Max Heap, 
in MB Minimum Free Heap, in MB
(if maxHeap feature licensed (1) )

NPM3 (JACE-3E)

22

94

38

NPM6 (JACE-6)

20

94

38

NMP6E ( JACE-603, JACE-645)

24

94

38

JACE-7

22

94

90

(1) If an JACE is NOT currently licensed with the “maxHeap” feature, then heap usage will not be an issue in N4.

 

The Minimum Free Disk Space recommendation is based on the following:

  • 4MB free reserve for future N4 expansion
  • 4MB for Data Recovery (NPM3E and NPM6E)
  • 14MB for N4 increase
  • 2MB for JACE-6 boot partition increase

The Minimum Free Heap recommendation is based on the following:

(20% total 86 NB heap size = 17MB) + (13MB additional N4 overhead + 8 MB 
smaller heap (J3/J6 only) = 38 MB