I have just installed FreeNAS 7.3 in an Alix.2 board with 256 MB physical RAM on-board. Nothing configured, nor hard disks attached.
The problem is the OS is only using 51MB of that amount. The graph of the status page says that:
Memory usage: 78% of 51MiB
The output of
sysctl confirms the previous value:
hw.physmem: 53604352 hw.usermem: 35471360 hw.realmem: 268435456
And is consistent whith data in
/var/run/dmesg.boot (this one drifted a little bit):
real memory = 268435456 (256 MB) avail memory = 47779840 (45 MB)
How can I tell FreeNAS to use all available 256MB? Or what can be wrong with the FreeNAS-Alix mix?
I have tested with Voyage Linux and it seems to use all:
root@voyage:~# free -m total used free shared buffers cached Mem: 249 53 196 0 0 40 -/+ buffers/cache: 11 237 Swap: 0 0 0
[ 0.000000] Memory: 251716k/262144k available (2719k kernel code, 9980k reserved, 1111k data, 344k init, 0k highmem)