September 20, 2025Sep 20 I have a system with 1536GiB of RAM, but Unraid only seems to want to use around 1TiB.Obviously the "1536TiB" is incorrect, but the system happily supports this much RAM with these Skylake M-suffix CPUs.Unraid however reports 1TiB usable in various places, although others I see the full 1.5TiB.The above screenshot I just told the live memory tester plugin to test 800GB, and it evicted almost all of my ZFS cache to achieve that, keeping ~500GiB sat idle.Docker advanced view shows as though it has the full amount of memory:ARC cache is set as:options zfs zfs_arc_max=824633720832
September 20, 2025Sep 20 Community Expert total used free shared buff/cache availableMem: 1.5Ti 296Gi 1.0Ti 8.6Gi 179Gi 1.2TiSwap: 0B 0B 0BTotal: 1.5Ti 296Gi 1.0TiThe OS is using 1.5TiB, just the usable size on the dash is incorrect.
September 20, 2025Sep 20 Author Interesting, strange that it doesn't seem to want to actually use it all in practice.Thanks.
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