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Forum Discussion
Readynas 104 - Slow transfer speeds
Dear all, I recently lost all my data to corruption of the array of my RN104. I've since then recreated an entirely new NAS based on NASware 4.0 TB drives in RAID5. I have also thoroughly sea...
I think your numbers are not too bad. The RN104 is weak because of its cpu and ram. I have an RN104 and an RN204. While the 104 is doing 45 to 50 the 204 is doing 85 to 90 MB/sec (write speed) under exactly the same conditions infrastructurewise.
If you like you could go through a collection of hints how to improve statbility and performance of RN104 following this link:
NAS performance tester 1.7 http://www.808.dk/?nastester
Running warmup...
Running a 400MB file write on P: twice...
Iteration 1: 35,03 MB/sec
Iteration 2: 34,67 MB/sec
-----------------------------
Average (W): 34,85 MB/sec
-----------------------------
Running a 400MB file read on P: twice...
Iteration 1: 60,84 MB/sec
Iteration 2: 61,45 MB/sec
-----------------------------
Average (R): 61,15 MB/sec
-----------------------------
I've just tried to do bonding on both adresses & to set it to adaptive load balancing. Changes nothing in terms of speed... I'm afraid the slow CPU is indeed the culprit... I am wondering if I should scrap it and try a RAID10 maybe? Would that give me much performance that the NAS can actually handle?
I havent started filling it, so there is still time.
I have decided to scratch the RAID5 array and try a RAID10, see if that gives me more performance.
Right now the array is rebuilding so I guess the slow CPU is struggling.
I get this:
NAS performance tester 1.7 http://www.808.dk/?nastester
Running warmup...
Running a 400MB file write on V: 5 times...
Iteration 1: 38,02 MB/sec
Iteration 2: 39,76 MB/sec
Iteration 3: 40,84 MB/sec
Iteration 4: 38,24 MB/sec
Iteration 5: 41,66 MB/sec
-----------------------------
Average (W): 39,71 MB/sec
-----------------------------
Running a 400MB file read on V: 5 times...
Iteration 1: 30,75 MB/sec
Iteration 2: 32,73 MB/sec
Iteration 3: 30,24 MB/sec
Iteration 4: 22,67 MB/sec
Iteration 5: 26,37 MB/sec
-----------------------------
Average (R): 28,55 MB/sec
-----------------------------Worse than the established RAID5, but I'll post again when the RAID10 is built, see if changes anything...
RAID0 would be optimal I guess, but I risk too much on RAID0 ...
daelomin wrote:RAID0 would be optimal I guess, but I risk too much on RAID0 ...
I don't think you should use that. RAID5 is the best compromise imho.
If you want to benchmark the volume locally, you could do that as well:
dd if=/dev/zero of=/data/benchmark.bin conv=fdatasync bs=10M count=200
Change /data by the name of your volume if you don't use "data".
root@miniNAS:/# dd if=/dev/zero of=/TEST10/benchmark.bin conv=fdatasync bs=10M count=200 200+0 records in 200+0 records out 2097152000 bytes (2.1 GB) copied, 24.1608 s, 86.8 MB/s
Thanks for the tip Jak, basically I'm getting more than double the speed locally than through the network... weird innit? Would that point towards something?
Additionally, I saw that there is a finetuning app called SMB Plus.. but no apps are showing in my NAS Admin web. Any clue why they'd be missing?Nevermind, I figured it out by connecting in ssh & doing : apt-get update
Upon rescanning the repositories, the apps reappeared.
However, SMB Plus now gives me a choice between SMB 3.0 (win8) and SMB 2.1 (Win7). Since I'm using Win7, should I switch back to 2.1?
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