I've deployed a system using SMB to store and replicate ~30TB of backup data from one site to another. The system seems to get into a state where, after large datasets or snapshots are removed it grows increasingly unresponsive. The amount of time it spends freeing is unreasonable, as it's taking nearly an hour to 'free' <100gb. While it's in the midst of this, SMB goes frequently unresponsive and the system has hard locked twice now. I'm relatively new at diagnosing this, but this process previously worked on an older system with far less horse power and shucked USB drives. So i wonder if its a but in 11.3, and am considering downgrading to 11.2.
root@ken-zyw-nas02[~]# zpool list -o freeing
FREEING
0
877G
Version: FreeNAS-11.3-U5
Dell 720xd 192gb ram
14x 1tb Dell SSd
7x 2tb samsung SSD
Perc in HBA mode.
There is no L2ARC, nor a slog.
boot is 2x dell sas drives.
root@ken-zyw-nas02[~]# zpool list -o freeing
FREEING
0
877G
Version: FreeNAS-11.3-U5
Dell 720xd 192gb ram
14x 1tb Dell SSd
7x 2tb samsung SSD
Perc in HBA mode.
There is no L2ARC, nor a slog.
boot is 2x dell sas drives.