Thank you. Not running anything off the NAS. Qbitorrent is running on windows machine and writing/reading from NAS so no applications really running on NAS at all except one-way sync overnight-to local hard drive (wasn’t even running when i was testing adobe/qbitorrent). This kind of workload scenario TS1655 should handle with no issues in my config I think.
CPU utilization on NAS is maybe 15%. and RAM is about 20% (no ssd cache, no dedup/compression enabled) I need to monitor these in detail. If CPU would’ve been the bottleneck I should have seen much higher CPU utilization though right?
My next test would be to move the connection from 10gbit qnap card to 2.5qnap port and see if the issue persists. Any other ideas?
Can it be the 64kb block size I have on Raid-6 volume? Maybe I need to lower it if I have torrents running?
What about the option of ZIL synchronized I/O mode when creating pool? I think i disabled it as I have NAS on separate APC UPS and power loss is not a concern. Can it have anything to do with that? How can I check that setting after storage pool creation?
Thank you.