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Forum Discussion
My RN102 is painfully slow
Hi everyone, I’ve had some difficulties using my RN102 for a long time. Transfer rates are actually more or less ok, but it’s the access times (right-click, access folders, copying a file…) that ...
Guillaume_R wrote:
I tried to stop the antivirus (but did not notice anything conclusive). Is the RAID-1 the reason of all this ? Am I missing something here ?
If you still have antivirus option, then you are running old software (it was removed from the RN100 series a while ago, because the NAS no longer has enough memory for it).
What firmware are you running?
Guillaume_R wrote:
Is the RAID-1 the reason of all this ?
No. But it would be good to look at the disk health. Try downloading the log zip file from the logs page in the web ui. Take a look at at the smart stats in disk_info.log. If you don't know how to interpret them, you can post them here (either as a pdf attachment, or cut/pasting them into the reply).
Also, have you ever run a btrfs balance or a scrub?
Guillaume_R wrote:
The NAS is connected to a small D-link hub, along my internet box. The hub is directly linked to my PC.
Can you check the ethernet speed on the network page of the NAS, and let us know what you are running? Perhaps also check this on the PC.
Hi Stephen, and thank you for your quick feedback !
_You're right about the antivirus, I did not even notice but it's gone from the UI. I just remember I had a big issue with it a few years ago, but anyway.
_I'm running with 6.10.3 (and am up to date, apparently)
_I'm afraid I never consulted the logs (I don't know how to handle these). Here's a screenshot of what I get when I download them all, anything specific you want me to upload ?
_I programmed a scrub (ie a "cleaning" right ? Not a defrag ? I have a French UI, just to make sure we understand each other ;)) every monday. I just realized it's still running right now :smileyfrustrated: Would it be the cause of my problem ?
_I could try the balance, you're right. Each and everytime I want to balance or test, it takes so much time I just forget it...
_On the network page, I have a bandwidth of 1Gb/sec (Network card is Qualcomm Atheros PCI-E, part of my Asus F2A85-V). Speaking of that, is there any way I can test/map my whole home network, so that I can determine where is located the flaw ?
Thanks again
Guillaume_R wrote:
_I'm afraid I never consulted the logs (I don't know how to handle these). Here's a screenshot of what I get when I download them all, anything specific you want me to upload ?
Open disk_info.log in notepad. Then you can post the info here (as suggested above). Best to copy/paste into your reply (not a screenshot).
You could also search system.log for btrfs errors (just search for btrfs).
Guillaume_R wrote:
_I programmed a scrub (ie a "cleaning" right ? Not a defrag ? I have a French UI, just to make sure we understand each other ;)) every monday. I just realized it's still running right now :smileyfrustrated: Would it be the cause of my problem ?
Scrub isn't a defrag, it does other stuff. It will slow down performance when it is running (as will the balance).
Guillaume_R wrote:
_I could try the balance, you're right. Each and everytime I want to balance or test, it takes so much time I just forget it...
If the balance always takes a long time, then you probably need to run them more often. Scrubs generally take about the same amount of time, but the balance will run quite quickly if there isn't anything it needs to do.
Guillaume_R wrote:
Speaking of that, is there any way I can test/map my whole home network, so that I can determine where is located the flaw ?
One aspect here is that SMB isn't very efficient at folder browsing (and that appears to be the performance issue that bothers you the most). So if there are a lot of files in your folders, you might need to re-organize them into subfolders, which would help.
But first we should rule out the network and the NAS itself. You can test with NAStester, it would give us some better idea of the large file speeds you are seeing. http://www.808.dk/?code-csharp-nas-performance
Stephen, here we go for disk_info :
Device: sda
Controller: 0
Channel: 0
Model: WDC WD30EFRX-68EUZN0
Serial: WD-WMC4N2537953
Firmware: 80.00A80W
Class: SATA
RPM: 5400
Sectors: 5860533168
Pool: data
PoolType: RAID 1
PoolState: 1
PoolHostId: e35da80
Health data
ATA Error Count: 0
Reallocated Sectors: 0
Reallocation Events: 0
Spin Retry Count: 0
Current Pending Sector Count: 0
Uncorrectable Sector Count: 0
Temperature: 31
Start/Stop Count: 416
Power-On Hours: 44047
Power Cycle Count: 416
Load Cycle Count: 365Device: sdb
Controller: 0
Channel: 1
Model: WDC WD30EFRX-68EUZN0
Serial: WD-WCC4N1LF9UVX
Firmware: 82.00A82W
Class: SATA
RPM: 5400
Sectors: 5860533168
Pool: data
PoolType: RAID 1
PoolState: 1
PoolHostId: e35da80
Health data
ATA Error Count: 0
Reallocated Sectors: 0
Reallocation Events: 0
Spin Retry Count: 0
Current Pending Sector Count: 0
Uncorrectable Sector Count: 0
Temperature: 31
Start/Stop Count: 384
Power-On Hours: 29376
Power Cycle Count: 384
Load Cycle Count: 457In the system.log, there appears to be no btrfs error.
Using NAS perf tester, I got these on my 3 partitions :
NAS performance tester 1.7 http://www.808.dk/?nastester
Running warmup...
Running a 400MB file write on A: 5 times...
Iteration 1: 10,68 MB/sec
Iteration 2: 10,35 MB/sec
Iteration 3: 10,02 MB/sec
Iteration 4: 10,30 MB/sec
Iteration 5: 10,15 MB/sec
-----------------------------
Average (W): 10,30 MB/sec
-----------------------------
Running a 400MB file read on A: 5 times...
Iteration 1: 7,14 MB/sec
Iteration 2: 7,18 MB/sec
Iteration 3: 7,05 MB/sec
Iteration 4: 7,09 MB/sec
Iteration 5: 7,11 MB/sec
-----------------------------
Average (R): 7,11 MB/sec
-----------------------------
Running warmup...
Running a 400MB file write on X: 5 times...
Iteration 1: 10,13 MB/sec
Iteration 2: 10,68 MB/sec
Iteration 3: 10,58 MB/sec
Iteration 4: 10,53 MB/sec
Iteration 5: 10,52 MB/sec
-----------------------------
Average (W): 10,49 MB/sec
-----------------------------
Running a 400MB file read on X: 5 times...
Iteration 1: 7,18 MB/sec
Iteration 2: 7,10 MB/sec
Iteration 3: 6,89 MB/sec
Iteration 4: 7,08 MB/sec
Iteration 5: 6,95 MB/sec
-----------------------------
Average (R): 7,04 MB/sec
-----------------------------
Running warmup...
Running a 400MB file write on Y: 5 times...
Iteration 1: 12,05 MB/sec
Iteration 2: 12,15 MB/sec
Iteration 3: 11,48 MB/sec
Iteration 4: 11,51 MB/sec
Iteration 5: 12,01 MB/sec
-----------------------------
Average (W): 11,84 MB/sec
-----------------------------
Running a 400MB file read on Y: 5 times...
Iteration 1: 7,23 MB/sec
Iteration 2: 7,46 MB/sec
Iteration 3: 7,28 MB/sec
Iteration 4: 7,22 MB/sec
Iteration 5: 7,33 MB/sec
-----------------------------
Average (R): 7,30 MB/sec
-----------------------------I just stopped the scrub process, to see what happens. I set it to run when I was away at work, but now I'm forced to work from home, so I spend a lot of time on the computer. I guess I should have thought about that earlier...
Here's the data from disk_info.log :
Device: sda
Controller: 0
Channel: 0
Model: WDC WD30EFRX-68EUZN0
Serial: WD-WMC4N2537953
Firmware: 80.00A80W
Class: SATA
RPM: 5400
Sectors: 5860533168
Pool: data
PoolType: RAID 1
PoolState: 1
PoolHostId: e35da80
Health data
ATA Error Count: 0
Reallocated Sectors: 0
Reallocation Events: 0
Spin Retry Count: 0
Current Pending Sector Count: 0
Uncorrectable Sector Count: 0
Temperature: 31
Start/Stop Count: 416
Power-On Hours: 44047
Power Cycle Count: 416
Load Cycle Count: 365Device: sdb
Controller: 0
Channel: 1
Model: WDC WD30EFRX-68EUZN0
Serial: WD-WCC4N1LF9UVX
Firmware: 82.00A82W
Class: SATA
RPM: 5400
Sectors: 5860533168
Pool: data
PoolType: RAID 1
PoolState: 1
PoolHostId: e35da80
Health data
ATA Error Count: 0
Reallocated Sectors: 0
Reallocation Events: 0
Spin Retry Count: 0
Current Pending Sector Count: 0
Uncorrectable Sector Count: 0
Temperature: 31
Start/Stop Count: 384
Power-On Hours: 29376
Power Cycle Count: 384
Load Cycle Count: 457
There appears to be no btrfs errors on system.log
I downloaded and ran NAS perf tester. I got an average speed of 10mb/sec (write) and 7,50mb/sec(read).
Then I stopped the scrub operation that has been running for two days on my NAS, ran NAS-PT again,
and got 31,8Mb/sec (write) and
22,5mb/sec (read).
Of course, the scrub process was slowing it all (I feel a little dumb now :smileytongue:). Ioriginally configured it so that it runs when I'm away at work, but now I'm locked down at home,
I'm much more on my PC (and totally forgot to disable it).
So, according to the data I posted, is everything back to normal ?
Guillaume_R wrote:
Here's the data from disk_info.log :
...
There appears to be no btrfs errors on system.log
Then I stopped the scrub operation that has been running for two days on my NAS, ran NAS-PT again,
and got 31,8Mb/sec (write) and
22,5mb/sec (read).
So, according to the data I posted, is everything back to normal ?First, the disks do look healthy. The scrub was obviuosly having a big effect
I haven't run NAS-PT, but I think it is likely that it would indicate slower speeds than NASTester (http://www.808.dk/?code-csharp-nas-performance ). NasTester is doing large file transfers, so it is basically a best cast for the NAS.
So things probably are back to normal, though maybe retest with NAStester and let us know what numbers it gives.
Still, 2 days is a really long time for a 3 TB RAID-1 scrub. Do you have disk spindown enabled?
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