Do I 'need' more RAM than 8GB?

  • Hi, I've had my OMV NAS running well for the past few months. I generally run only about 4 Docker containers for Plex, TVheadend, Crashplan and Resilio Sync. Typically the server is only accessed simultaneously by only 2 people at a time for Plex.


    At this point in time, I'm not likely to be transitioning to using a Hypervisor like ESXi or Proxmox so I'll be sticking with OMV on baremetal. The main reason for asking is because a friend is offering to sell me a 16GB kit (Crucial ECC 2400MHz UDIMM) for a good price, but I won't bother buying it from him if it's going to be a waste.


    I run a ZFS pool with just 2x 4TB drives in a mirror. I also have 6x 4TB drives in a mergerfs+SnapRAID array.


    Based on these memory stats, can I just stick with 8GB RAM for the foreseeable future? Having 1.3GB RAM free on average to me indicates that it probably would be fine unless I really wanted to hammer the server with VMs in future.

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