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Network I/O drops/sabnzb/nzbget/high memory util!!!
#1
Hi all, Got my N5550 delivered today and went on confguring a raid-5 array of 1TB WD RED disks...so far fine. Updated to the latest firmware, because of the Fan Failure bug that my unit also had. (doesn't this get checked before shipping it to retailers?????). Installed NZBget (official Thecus) to test network performance. For the first couple of minutes it got fast downloads of around 7 MB/s ( 60MB UPC cable connection), but suddenly drops to a staggering 30Kb/s or less!!!....ok, i thought: maybe its NZBget that has the problem...so i installed SABnzb...and behold: the same problem, first very nice speeds and after a couple of seconds to minutes a drop in speed to <100 KB/s!!! I have an Asus RT-n66u Black night router connected to my Cisco EP3925 modem/router box, and to troubleshoot i connected the NAS directly to the Cisco router, but the same problems are still there. Memory consumption is > 90%, slugish performance of the Gui, ev en though i upgraded the memory to 2 x 2GB to see if thats the problem (only 3GB is used however). At the moment i cant even get to the gui....its stuck or something! Can ping the unit, but no http!!!! Reboot does help, but only for a short while before the problem start allover again.........this is my first experience with Thecus, I sold my old Qnap 219P for this lovely Thecus, but.....maybe i should have waited Sad

I expect a new Nas unit to be 100% functional for its core functionality: serving files and serve as a NZB download station ( heck, every other NAS i can think of, can do that!!!).... i do not expect myself to troubleshoot a new device and after 10 hours getting nowhere!! I will give this thing just a couple more days, and then i will return it and buy something else i think...Sad
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#2
Hi all, Got my N5550 delivered today and went on confguring a raid-5 array of 1TB WD RED disks...so far fine. Updated to the latest firmware, because of the Fan Failure bug that my unit also had. (doesn't this get checked before shipping it to retailers?????). Installed NZBget (official Thecus) to test network performance. For the first couple of minutes it got fast downloads of around 7 MB/s ( 60MB UPC cable connection), but suddenly drops to a staggering 30Kb/s or less!!!....ok, i thought: maybe its NZBget that has the problem...so i installed SABnzb...and behold: the same problem, first very nice speeds and after a couple of seconds to minutes a drop in speed to <100 KB/s!!! I have an Asus RT-n66u Black night router connected to my Cisco EP3925 modem/router box, and to troubleshoot i connected the NAS directly to the Cisco router, but the same problems are still there. Memory consumption is > 90%, slugish performance of the Gui, ev en though i upgraded the memory to 2 x 2GB to see if thats the problem (only 3GB is used however). At the moment i cant even get to the gui....its stuck or something! Can ping the unit, but no http!!!! Reboot does help, but only for a short while before the problem start allover again.........this is my first experience with Thecus, I sold my old Qnap 219P for this lovely Thecus, but.....maybe i should have waited Sad

I expect a new Nas unit to be 100% functional for its core functionality: serving files and serve as a NZB download station ( heck, every other NAS i can think of, can do that!!!).... i do not expect myself to troubleshoot a new device and after 10 hours getting nowhere!! I will give this thing just a couple more days, and then i will return it and buy something else i think...Sad
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#3
interestingly enough: I hava a D2700 in my box, running at 2,17ghz.....not a D2550....anyone else???
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#4
interestingly enough: I hava a D2700 in my box, running at 2,17ghz.....not a D2550....anyone else???
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#5
Same problem.
Non responsive Web GUI, sluggish SMB share or non responsive at all, after 7 minutes downloading with SabNZB.

Problems starts with high CPU load of kswapd0, at that time system is swapping memory to disk, and system/HTTP GUI/SMB shares are non responsive.
After kswapd0 process settles down, HTTP GUI/SMB shares are still non responsive.

Cpu(s): 1.4%us, 31.9%sy, 0.0%ni, 14.9%id, 51.4%wa, 0.0%hi, 0.4%si, 0.0%st
Mem: 2015448k total, 1997052k used, 18396k free, 1316k buffers
Swap: 2096112k total, 107216k used, 1988896k free, 36616k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
413 root 20 0 0 0 0 R 103.1 0.0 1:15.03 kswapd0

~# uname -a
Linux N5550 2.6.38 #19 SMP Thu Jul 26 17:23:46 CST 2012 x86_64 GNU/Linux

Update:
After adding extra 2GB memory and resuming download, system was more responsive until other system processes used all CPU and download and/or parring paused;

Cpu(s): 0.0%us,100.0%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 3049636k total, 3026180k used, 23456k free, 59928k buffers
Swap: 2096112k total, 6524k used, 2089588k free, 1352640k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3065 root 20 0 0 0 0 R 99.8 0.0 3:57.12 flush-9:0
21981 root 20 0 10132 1440 208 R 99.8 0.0 0:56.31 rc.net
21982 root 20 0 10132 1256 16 R 99.8 0.0 0:55.91 rc.net
21370 root 20 0 9328 464 8 R 99.5 0.0 1:33.55 check_fan_lan.s

Looks like there is a kernel bug with firmware version 2.3.2

Any thoughts?
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#6
Same problem.
Non responsive Web GUI, sluggish SMB share or non responsive at all, after 7 minutes downloading with SabNZB.

Problems starts with high CPU load of kswapd0, at that time system is swapping memory to disk, and system/HTTP GUI/SMB shares are non responsive.
After kswapd0 process settles down, HTTP GUI/SMB shares are still non responsive.

Cpu(s): 1.4%us, 31.9%sy, 0.0%ni, 14.9%id, 51.4%wa, 0.0%hi, 0.4%si, 0.0%st
Mem: 2015448k total, 1997052k used, 18396k free, 1316k buffers
Swap: 2096112k total, 107216k used, 1988896k free, 36616k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
413 root 20 0 0 0 0 R 103.1 0.0 1:15.03 kswapd0

~# uname -a
Linux N5550 2.6.38 #19 SMP Thu Jul 26 17:23:46 CST 2012 x86_64 GNU/Linux

Update:
After adding extra 2GB memory and resuming download, system was more responsive until other system processes used all CPU and download and/or parring paused;

Cpu(s): 0.0%us,100.0%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 3049636k total, 3026180k used, 23456k free, 59928k buffers
Swap: 2096112k total, 6524k used, 2089588k free, 1352640k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3065 root 20 0 0 0 0 R 99.8 0.0 3:57.12 flush-9:0
21981 root 20 0 10132 1440 208 R 99.8 0.0 0:56.31 rc.net
21982 root 20 0 10132 1256 16 R 99.8 0.0 0:55.91 rc.net
21370 root 20 0 9328 464 8 R 99.5 0.0 1:33.55 check_fan_lan.s

Looks like there is a kernel bug with firmware version 2.3.2

Any thoughts?
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#7
same problem here
recieved the unit today, high memory, failing SMB, very slow GUI
did the upgrade, installed xbmc problem start
tried sabnzbd, same problem
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#8
same problem here
recieved the unit today, high memory, failing SMB, very slow GUI
did the upgrade, installed xbmc problem start
tried sabnzbd, same problem
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#9
Same here! :evil:
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#10
Same here! :evil:
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#11
same problem here :|
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#12
same problem here :|
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#13
I have similar problems. After I while, the NAS disappears from the network and the display 'freezes', i.e. does not cycle throught the messages anymore. The unit is pingable but the web interface does not respond.
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#14
I have similar problems. After I while, the NAS disappears from the network and the display 'freezes', i.e. does not cycle throught the messages anymore. The unit is pingable but the web interface does not respond.
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#15
Having solved my disk I/O errors (see separate thread); I think I may be experiencing the problem too.

In my case I am copying some files from the NAS.

It starts fine, then slows down (after a few minuted); after a short time, the share disappears off the network and the front display panel freezes.

I can no longer access the NAS on the network and have to do a manual reboot.

This has so far happened several times this morning.
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