Not enough storage is available/out of memory: This error indicates that the machine on which the executor is running has run out of memory. The executor launches multiple copies of itself, including one executable per mailbox migrated. Each such process will consume some memory (RAM) while processing mailbox data.
We recommend the following:
- Confirm memory load on the executor machine (i.e., use the Windows task manager).
- Increase available memory (RAM) on the executor machine.
- Decrease the number of simultaneous migrations.
While executor processes are 32-bit processes, you may execute them on a 64-bit operating system with higher memory limits.