BigMemory FRS supports writing to one single mount, which can be a single device or a RAID.

The mount should be used exclusively for the Terracotta server process. The software was designed for usage on local drives (SSD/Flash in particular) - SAN/NAS storage is not recommended. If you utilize SAN/NAS storage you will experience notably reduced and inconsistent performance - any support requests related to performance or stability on such deployments will require the user to reproduce the issue with local disks.