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N5500 droping eth while using samba
#1
Hi guys,

we are a small company using 2 NAS 5500 units for iscsi and smb shares, both in sync.

The only services that we use are rsync, samba, nfs, iscsi all running on raid 6.

Few times now i came across a problem, which is quite severe, while it requires to power down nas and power it up again to resume work.
Problem is that in some case nas becomes unresponsive on lan. It cannot be pinged,... all shares are inaccessible, etc...
But the network indication still blinks. So as i said the only thing to resume work is to shutdown and power up again via button.

How i came across this problem... just today i asked a collegue of mine to copy some pdf to network share on nas, while he was copying i allready oppened one pdf which did not load fully on my computer (normaly while it was not copied totaly on the share), so on my computer the pdf was marked as loading and few seconds after i got a windows notification that share is unavailable. The same has shown at my collegues computer. Result was that the nas was inaccessible. could not be pinged and all shares and iscsi for Database were closed !?!?!?!?!

I know that what we did was nothing wrong, this could happen in normal operation... the problem is that i tried the same thing again and it did not lock up as before, so it must be some special condition to shutdown eth or maybe samba deamon.

Is there a way to retrieve logs for linux ??? In the error log nothing is shown but shutdown initiated.

So my oppinion is that samba crashes for some reason or for somereason eth goes down :S

Anyone has any idea ?

Thank you

Product Information
Manufacturer Thecus
Product No. N5500
Firmware Version 5.01.04

Best regards,
Alen
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#2
Hi guys,

we are a small company using 2 NAS 5500 units for iscsi and smb shares, both in sync.

The only services that we use are rsync, samba, nfs, iscsi all running on raid 6.

Few times now i came across a problem, which is quite severe, while it requires to power down nas and power it up again to resume work.
Problem is that in some case nas becomes unresponsive on lan. It cannot be pinged,... all shares are inaccessible, etc...
But the network indication still blinks. So as i said the only thing to resume work is to shutdown and power up again via button.

How i came across this problem... just today i asked a collegue of mine to copy some pdf to network share on nas, while he was copying i allready oppened one pdf which did not load fully on my computer (normaly while it was not copied totaly on the share), so on my computer the pdf was marked as loading and few seconds after i got a windows notification that share is unavailable. The same has shown at my collegues computer. Result was that the nas was inaccessible. could not be pinged and all shares and iscsi for Database were closed !?!?!?!?!

I know that what we did was nothing wrong, this could happen in normal operation... the problem is that i tried the same thing again and it did not lock up as before, so it must be some special condition to shutdown eth or maybe samba deamon.

Is there a way to retrieve logs for linux ??? In the error log nothing is shown but shutdown initiated.

So my oppinion is that samba crashes for some reason or for somereason eth goes down :S

Anyone has any idea ?

Thank you

Product Information
Manufacturer Thecus
Product No. N5500
Firmware Version 5.01.04

Best regards,
Alen
Reply
#3
Thecus could you please make this work .... update samba or something, we cannot work normaly, i'm pulling cables out ever day now :S

The more user are using hd the more often this happens!!!!

hope to get a fix soon!
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#4
Thecus could you please make this work .... update samba or something, we cannot work normaly, i'm pulling cables out ever day now :S

The more user are using hd the more often this happens!!!!

hope to get a fix soon!
Reply
#5
What is your network configuration like ? 100mbit ? 1Gbit ?

Do you have the SSH module installed and can you login as a root and run "/sbin/ifconfig -a" and post the output ?

Just wondering if you have a network issue.
N4200Pro with 4 * 2TB WD20EARS drives, upgraded to 4GB RAM.
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#6
What is your network configuration like ? 100mbit ? 1Gbit ?

Do you have the SSH module installed and can you login as a root and run "/sbin/ifconfig -a" and post the output ?

Just wondering if you have a network issue.
N4200Pro with 4 * 2TB WD20EARS drives, upgraded to 4GB RAM.
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#7
The network configuration is 1GB. And i don't see how it could be related to network problem... if we don't use samba it works only when accessing samba in some obscure way it drops link

this is the ifconfig:


<!-- e --><a href="mailto:root@127.0.0.1">root@127.0.0.1</a><!-- e -->:~# ifconfig
eth0 Link encap:Ethernet HWaddr 00:14:FD:13:05:78
inet addr:192.168.3.2 Bcast:192.168.3.255 Mask:255.255.255.0
inet6 addr: fe80::214:fdff:fe13:578/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:7000 Metric:1
RX packets:13269 errors:0 dropped:0 overruns:0 frame:0
TX packets:17255 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1570093 (1.4 MiB) TX bytes:20815900 (19.8 MiB)

eth1 Link encap:Ethernet HWaddr 00:14:FD:13:05:79
inet addr:192.168.2.254 Bcast:192.168.2.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:91 errors:0 dropped:0 overruns:0 frame:0
TX packets:91 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:7480 (7.3 KiB) TX bytes:7480 (7.3 KiB)
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#8
The network configuration is 1GB. And i don't see how it could be related to network problem... if we don't use samba it works only when accessing samba in some obscure way it drops link

this is the ifconfig:


<!-- e --><a href="mailto:root@127.0.0.1">root@127.0.0.1</a><!-- e -->:~# ifconfig
eth0 Link encap:Ethernet HWaddr 00:14:FD:13:05:78
inet addr:192.168.3.2 Bcast:192.168.3.255 Mask:255.255.255.0
inet6 addr: fe80::214:fdff:fe13:578/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:7000 Metric:1
RX packets:13269 errors:0 dropped:0 overruns:0 frame:0
TX packets:17255 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1570093 (1.4 MiB) TX bytes:20815900 (19.8 MiB)

eth1 Link encap:Ethernet HWaddr 00:14:FD:13:05:79
inet addr:192.168.2.254 Bcast:192.168.2.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:91 errors:0 dropped:0 overruns:0 frame:0
TX packets:91 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:7480 (7.3 KiB) TX bytes:7480 (7.3 KiB)
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#9
What does sshd have to do with the problem ?!
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#10
What does sshd have to do with the problem ?!
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#11
Hello,

I have the exact same problem with my N5500 and wondering whether you have found a solution?


I can backup around 100Gig in about an hour for my system drive, but when trying to backup around 500gig from my data drive on my windows pc the backup "times out". I have then noticed that the N5500 has "dropped" off the network and is non-responsive to any network ping or activity although there is no error light on the NAS nor anything in the GUI system log.Open files and folders become unresponsive and time out etc.

Sometimes the N5500 stops being responsive for a while (minutes), and then comes back again and is accessible on the network again. Sometimes over the course of a couple of hours worth of backup this can happen multiple times. However most times, the N5500 drops off completely and only comes back after a hard reboot from the front power button.

I have used this N5500 for many years and I only turn it on when I need to backup my pc's across my network, the rest of the time it stays turned off. I have looked into the GUI and raid system, hdd's are all healthy no problem. RAID space is 91%

I was running FW version 5.03.02 and upgraded to version 5.03.02.8 to see if that fixed the problem but it still exists.

To ascertain its the N5500 causing the issue I have tried the following:
- My main PC is Windows 7, but I have also tried from a Windows 10 laptop with the same results.
- I have swapped my network CPE over to a different router (netgear vs sagem) and again same results. When the N5500 drops off the network, my router also can no longer see the N5500 either along with all the other PC's on the LAN.
- Am not running many modules at all, just HiSSH so I could get ifconfig log, and I disabled the rest

On the network side, my N5500 connects to my router directly, as does my other machines via ethernet (no wifi being used for backups).

thanks


ifconfig from the N5500 (when its connected to the network and in a working state)

# ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:14:FD:13:08:8E
          inet addr:192.168.0.30  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::214:fdff:fe13:88e/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:5783 errors:0 dropped:0 overruns:0 frame:0
          TX packets:7913 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:849707 (829.7 KiB)  TX bytes:6247305 (5.9 MiB)

eth1      Link encap:Ethernet  HWaddr 00:14:FD:13:08:8F
          inet addr:192.168.2.254  Bcast:192.168.2.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

ipddp0    Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-20-00-00-00-00-00-00-00-00                             -00
          BROADCAST NOARP MULTICAST  MTU:585  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:24 errors:0 dropped:0 overruns:0 frame:0
          TX packets:24 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:3992 (3.8 KiB)  TX bytes:3992 (3.8 KiB)

lt0       Link encap:UNSPEC  HWaddr 00-00-80-00-00-00-20-00-00-00-00-00-00-00-00                             -00
          BROADCAST NOARP MULTICAST  MTU:600  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:10
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:5 Base address:0x240

tun0      Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00                             -00
          inet addr:10.8.142.1  P-t-P:10.8.142.2  Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
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#12
Dear Sir,

Here recommend download CONF.BIN and submit ticket from http://esupport.thecus.com let we check for you first.
Yvon.
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