Yeah, 2GB is pretty low... my own experience with backup systems is having full servers to power them, and usually having to over spec them so they can live 5 y

Yeah, 2GB is pretty low... my own experience with backup systems is having full servers to power them, and usually having to over spec them so they can live 5 year lifespans without ever becoming the bottleneck in the backup chain. re: tangent; I wouldn't really call my response heated, I've just ran into workloads with ZFS where limiting the ARC cache solved problems. I've also ran into frustrations with ZFS that there really aren't easy solutions to (The slab allocator on FreeBSD not playing well with ZFS on this particular servers workload, so having to change the memory allocation system being used to one that doubles CPU usage. Not having ZFSs extended ACLs exposed on Linux, meaning migrating one of our FreeBSD systems to linux will require serious effort)