ZFS is notorious for it's RAM requirements. The "rule of thumb" for ZFS is 1GB of RAM per TB of storage. My question is, does anyone know if BTRFS falls under a similar rule? I've been googling around and can't seem to find anything that gives a conclusive answer. Though that's probably me and PEBKAC when it comes to googling.
ZFS / BTRFS RAM requirements...
- Thread starter OhEsEcks
- Start date
Workload will be storage for my media collection mostly (films, music, digitising my pictures from negatives / scanning old images), backup system for machines around the house, that sort of thing.
But I have 16x2TB disks. So by FreeNAS ROT, I'd need 32GB of RAM for the storage alone. Which makes choosing hardware a pain in the ass since Celerons and E3 Xeons support a max of 32GB. I'd need to go E5 (something like E5-2603v2) to support more than 32GB of RAM, or older (second hand) Opteron / Xeons to keep the cost down.
If BTRFS requires less RAM it would save people a lot when it comes to RAM'ing up their systems.
But I have 16x2TB disks. So by FreeNAS ROT, I'd need 32GB of RAM for the storage alone. Which makes choosing hardware a pain in the ass since Celerons and E3 Xeons support a max of 32GB. I'd need to go E5 (something like E5-2603v2) to support more than 32GB of RAM, or older (second hand) Opteron / Xeons to keep the cost down.
If BTRFS requires less RAM it would save people a lot when it comes to RAM'ing up their systems.