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Performance/Admin Page Access - Does available disk space affect access to the ReadyNas
Hi,
I have a ReadyNAS NV+ and it has been running well for a while. A while back, I got a warning about the fan failing so I took the NAS out of commission for a while and got a replacement fan. I also got warnings about increasing bad sectors on one of the drives so I replaced it. I use the NAS as intermediate storage for my acronis images taken from my servers. I can't remember at what point, but my jobs began to take way longer to complete than they previously. I think it was after I replaced the drive which a WD10EFRX - WD Red 1TB NAS Hard Disk Drive. My backups literally take 4 times as long to complete. I replaced the 2nd drive with an identical WD10EFRX - WD Red 1TB NAS Hard Disk Drive drive and it still slower than it was previously. Unfortunately, I can't find the original drives that I had installed in the unit when it was initially provisioned. Both of the disks are healthy according to the NAS, but performance is still slow. I updated the firmware on the NAS. There is nothing in the logs apart from the occasional volume running out of space, which is normal in my situation. The NAS is connected to a 1Gb/s full duplex port. At one point I connected the NAS directly to the same switch that the servers are connected, however I saw no speed difference. There are 2 drives in a Raid 1 configuration.
Any assistance would be greatly appreciated.
Thanks in advance.
Are you using jumbo frames on your network?
It is a bit odd that you can't change the MTU. Perhaps try turning jumbo frames off, and do another test.
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Ok, mine aren't so bad now I guess. After disabling the journaling, I get this:
NAS performance tester 1.7 http://www.808.dk/?nastester
Running warmup...
Running a 400MB file write on \\nas\backup 5 times...
Iteration 1: 17.77 MB/sec
Iteration 2: 18.23 MB/sec
Iteration 3: 18.23 MB/sec
Iteration 4: 18.23 MB/sec
Iteration 5: 18.22 MB/sec
-----------------------------
Average (W): 18.14 MB/sec
-----------------------------
Running a 400MB file read on \\nas\backup 5 times...
Iteration 1: 16.82 MB/sec
Iteration 2: 21.37 MB/sec
Iteration 3: 18.25 MB/sec
Iteration 4: 18.64 MB/sec
Iteration 5: 16.58 MB/sec
-----------------------------
Average (R): 18.33 MB/sec
-----------------------------Disabling the journalling definitely helped with the speed. I unchecked "optimize for OSX but performance took quite a hit with similar performance to when my network link was 100Mbps. I reenabled it and performance was restored.
We've had the NAS for a few years now so the volume itself has been created a while now. I have replaced both of the disks of the NAS and I'm not sure whether it has the larget block size. I normally empty the NAS on a Friday to prepare for full backups on the weekend. I have some other stuff I will copy off as well, then do a factory reset. It is running 4.1.14 which it says is the latest version available for this device. How long does a factory reset take to perform? I have 2 1TB drives installed in Raid 1.
Thanks.
Hi Guys,
Thanks for all the help. StephenB, as soon as you made the comment about the posted speed on a gigabit network, I quickly remembered that I ran this test from a workstation connected to a 10/100 to the NAS. I ran the test on one of the servers and got a similar speed. I checked the connection points on between the switches and I realized that my fiber link is running at 100 full instead of the 1000 full that it is supposed to be running. I'm not sure why this is the case. The both ends of the connection were set to auto negotiate, however they still performed at 100 full. I disabled autonegotiate and changed them to 1000 full manually. I ran the NAStest and got this:
----------------
NAS performance tester 1.7 http://www.808.dk/?nastester
Running warmup...
Running a 400MB file write on \\nas\backup\ 5 times...
Iteration 1: 14.65 MB/sec
Iteration 2: 14.94 MB/sec
Iteration 3: 15.15 MB/sec
Iteration 4: 14.93 MB/sec
Iteration 5: 15.12 MB/sec
-----------------------------
Average (W): 14.96 MB/sec
-----------------------------
Running a 400MB file read on \\sld-nas\backup\ 5 times...
Iteration 1: 17.41 MB/sec
Iteration 2: 17.08 MB/sec
Iteration 3: 17.80 MB/sec
Iteration 4: 17.98 MB/sec
Iteration 5: 17.52 MB/sec
-----------------------------
Average (R): 17.56 MB/sec
-----------------------------
It's a slight improvement, but I thought I would be getting a lot higher.
Can you please run it on your end so I can get an idea of what you are getting if you are on gigabit?
The entire network isn't gigabit, however it is on between servers and the links between the switches. Or I thought it was until I just corrected the one link. I have another link to a different switch via fiber that has no issues auto negotiating to 1000 full. I'll keep you posted.
Thanks for the info.
gt3 wrote:
Can you please run it on your end so I can get an idea of what you are getting if you are on gigabit?
NAS performance tester 1.7 http://www.808.dk/?nastester
Running warmup...
Running a 400MB file write on \\10.0.0.11\backup 5 times...
Iteration 1: 17.68 MB/sec
Iteration 2: 18.20 MB/sec
Iteration 3: 18.18 MB/sec
Iteration 4: 18.16 MB/sec
Iteration 5: 18.24 MB/sec
-----------------------------
Average (W): 18.09 MB/sec
-----------------------------
Running a 400MB file read on \\10.0.0.11\backup 5 times...
Iteration 1: 27.17 MB/sec
Iteration 2: 25.94 MB/sec
Iteration 3: 26.36 MB/sec
Iteration 4: 25.78 MB/sec
Iteration 5: 26.73 MB/sec
-----------------------------
Average (R): 26.40 MB/sec
-----------------------------The client is a T440s laptop with an SSD disk. The network is gigabit (both NAS and laptop connected to a Netgear GS724Tv3 switch).
The NAS has journaling disabled and fast CIFS writes enabled. The MTU is set to 1500 bytes. The disks are old (WD20EARS), but I did a factory reset last spring, so I do have 4K sector alignment. Nothing unusual about the hardware - an NV+ with the factory-installed 256 mb ram.
Of course the newer ReadyNAS are quite a bit faster.
What firmware is running in the NAS?
Also, what speeds are you seeing with NAStester ( http://www.808.dk/?code-csharp-nas-performance )
Hi StephenB.
Thanks for your quick response. I am running RAIDiator 4.1.14.
Below is the output from the NAStester app:
NAS performance tester 1.7 http://www.808.dk/?nastester
Running warmup...
Running a 400MB file write on \\nas\backup\test 5 times...
Iteration 1: 8.71 MB/sec
Iteration 2: 9.13 MB/sec
Iteration 3: 9.07 MB/sec
Iteration 4: 9.10 MB/sec
Iteration 5: 9.01 MB/sec
-----------------------------
Average (W): 9.00 MB/sec
-----------------------------Any ideas?
Thanks.
These speeds are on a gigabit network?
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