NFS Mount and LARGE amounts of "INACT" memory

[Larry Rosenman]

I have a 64G memory FreeBSD 11-CURRENT system that has a couple of 
mounts to a FreeNAS (FreeBSD 9.3) system.

When my rsync from a different system to one of the NFS mounts runs, I 
get like 48G of Inactive memory that goes back to
free if I umount the share.

I'm wondering why this memory moves from ZFS ARC to INACT.

And, is this expected?


-- 
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 214-642-9640                 E-Mail: ler at lerctr.org
US Mail: 108 Turvey Cove, Hutto, TX 78634-5688