Chavell3_84
Cadet
- Joined
- Dec 9, 2020
- Messages
- 5
Hi community,
I have, won't say "a problem", but an issue(is that somewhat better? :P ) with my TrueNAS v12.
I'm running a Raid-5(Z1) with 3x 4TB disk but when I try a performance test, the throughput is constantly around 34MB/s...
I would at least expect somewhat around 100MB/s, well as my network with 1Gbit would be the next bottleneck
Another test on a single pool(only 1 SSD attached) also showed only 34MB/s.
I've tested it with SMB(on the 3x 4TB pool) and with NFS(on the SSD pool) but the performance is always the same.
I also attached some SLOG and LARC2 device cache, running on 2 different NVME devices, to get some more performance but it does not impact the performance at all...
An
SMB test:
Direct I/O
Bypass Write-Cache:
VM on SSD pool:
The system is running on a Intel Pentium G5500T with 16GB DDR4 RAM.
Also interesting, the read-performance is worse than the write performance...
Hopefully you have some ideas for me to investigate, what could be the issue...
Thanks
I have, won't say "a problem", but an issue(is that somewhat better? :P ) with my TrueNAS v12.
I'm running a Raid-5(Z1) with 3x 4TB disk but when I try a performance test, the throughput is constantly around 34MB/s...
I would at least expect somewhat around 100MB/s, well as my network with 1Gbit would be the next bottleneck
Another test on a single pool(only 1 SSD attached) also showed only 34MB/s.
I've tested it with SMB(on the 3x 4TB pool) and with NFS(on the SSD pool) but the performance is always the same.
I also attached some SLOG and LARC2 device cache, running on 2 different NVME devices, to get some more performance but it does not impact the performance at all...
An
Code:
pool: data state: ONLINE scan: resilvered 96K in 0 days 00:00:03 with 0 errors on Thu Dec 3 20:36:04 2020 config: NAME STATE READ WRITE CKSUM data ONLINE 0 0 0 raidz1-0 ONLINE 0 0 0 gptid/0bfc1eac-b787-11ea-a9e3-dc9c5207e9e3 ONLINE 0 0 0 gptid/0c0ceeaa-b787-11ea-a9e3-dc9c5207e9e3 ONLINE 0 0 0 gptid/0c0374ea-b787-11ea-a9e3-dc9c5207e9e3 ONLINE 0 0 0 logs mirror-8 ONLINE 0 0 0 gptid/4fc3dae0-3598-11eb-b27d-18c04d05d4ca ONLINE 0 0 0 gptid/4fc9c207-3598-11eb-b27d-18c04d05d4ca ONLINE 0 0 0 cache gptid/4fc64836-3598-11eb-b27d-18c04d05d4ca ONLINE 0 0 0 gptid/4fcc3218-3598-11eb-b27d-18c04d05d4ca ONLINE 0 0 0
SMB test:
Direct I/O

Bypass Write-Cache:

VM on SSD pool:

The system is running on a Intel Pentium G5500T with 16GB DDR4 RAM.
Also interesting, the read-performance is worse than the write performance...
Hopefully you have some ideas for me to investigate, what could be the issue...
Thanks