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Author Topic: Network light blinking even if not accessing  (Read 9530 times)

heartog

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Network light blinking even if not accessing
« on: July 27, 2011, 08:11:07 AM »
i have disabled ftp and other servers. i also stopped the bittorrent addon. i have hdd hibernation enabled and turn off hdd after 5 min. the fan and hdd will not turn off at night and the network led will keep on flashing.
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ivan

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Re: Network light blinking even if not accessing
« Reply #1 on: July 27, 2011, 01:42:00 PM »
What do you mean and what exactly is your question?

How do you know the hdd is not hibernating?  The activity indicator leds will always be on, just not flashing.  As for the fan, what are your settings for that?

Continual blinking of the network led could mean that you have a connected computer that is turned off but not unplugged from the power and the network card has not shut down correctly.  I have one that does that and the only way to stop it is by unplugging the power to the computer.  If on the other hand you are seeing a few blinks every few minutes this appears to be normal and triggered, in my case, by the ADSL box.
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dosborne

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Re: Network light blinking even if not accessing
« Reply #2 on: July 27, 2011, 02:04:59 PM »
Do you have any ports forwarded to your NAS? If so, it could be inbound traffic.
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3 x DNS-323 with 2 x 2TB WD Drives each for a total of 12 TB Storage and Backup. Running DLink Firmware v1.08 and Fonz Fun Plug (FFP) v0.5 for improved software support.

heartog

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Re: Network light blinking even if not accessing
« Reply #3 on: July 27, 2011, 05:06:56 PM »
i set my fan to auto:off,low,high. i tried to unplug every computer and even the internet and only the nas to the router, it the blink continusly. i don't have any ports forwarded to the nas. and another question: will the hdd hibernate when there is a few blinks in a few minutes?
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dosborne

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Re: Network light blinking even if not accessing
« Reply #4 on: July 27, 2011, 05:50:59 PM »
You need to find out what the traffic to the unit is. A 'blink' means there is data. It could be something the NAS is sending, something it is receiving, a 'I'm alive' pulse. Unless the NAS is acting on the traffic and it requires a disk read/write, then the HDDs will hibernate. You can ping the **** out of the NAS and the drives will still hibernate. You can try and FTP to the NAS and the drives will still hibernate if nothing is listening on the FTP port. Just because there is a LED blinking it doesn't mean much. A sniffer will tell you the traffic.

There are a number of services that could be running. It could even be something as simple as a timeserver update request.
« Last Edit: July 27, 2011, 05:52:35 PM by dosborne »
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3 x DNS-323 with 2 x 2TB WD Drives each for a total of 12 TB Storage and Backup. Running DLink Firmware v1.08 and Fonz Fun Plug (FFP) v0.5 for improved software support.

fordem

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Re: Network light blinking even if not accessing
« Reply #5 on: July 27, 2011, 07:53:16 PM »
A flashing network LED indicates network traffic on the link, this is not necessarily access to the NAS - most networks have some level of broadcast activity which will cause the network LED to flash.

The first thing to determine is if the NAS is hibernated or not - assuming the power LED is enabled, it will be dim if the NAS is hibernated, and on if it is not - if the power LED is always on with the unit configured to hibernate, the next step is to determine if it is external access or an internal process keeping it from hibernating - unplug the network cable - if it hibernates, external access is keeping the NAS awake, if it doesn't it is an internal process.
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RAID1 is for disk redundancy - NOT data backup - don't confuse the two.

heartog

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Re: Network light blinking even if not accessing
« Reply #6 on: July 28, 2011, 07:21:33 AM »
i did not enable the time server. at night, the network led will still flash for a bit but the power led will dim. the fan will not turn off even when the power led dimmed. i tried unplugging the network cable but still the fan won't turn off.
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Flamingfarts

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Re: Network light blinking even if not accessing
« Reply #7 on: July 28, 2011, 08:41:57 AM »
Quote from: heartog on July 28, 2011, 07:21:33 AM
i did not enable the time server. at night, the network led will still flash for a bit but the power led will dim. the fan will not turn off even when the power led dimmed. i tried unplugging the network cable but still the fan won't turn off.


I found out that with firmware 1.09 if you enable hibernation the fan will be always stuck in low/high mode and if you disable it it will work off/low/high mode vs temperature. 1.10 B7 solve that. Even when my NAS is in hibernation the network LED blink sometimes ... it's normal that all devices is talking to each other on the network , you don't even need the forward a port to make it blink .. the DHCP server is always checking if new devices is plugged or if they are still there  ... no worries

my dns-323 is a C1 
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heartog

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Re: Network light blinking even if not accessing
« Reply #8 on: July 28, 2011, 08:50:53 AM »
and i am using firmware 1.08
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fordem

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Re: Network light blinking even if not accessing
« Reply #9 on: July 28, 2011, 10:51:53 AM »
Quote from: heartog on July 28, 2011, 07:21:33 AM
i did not enable the time server. at night, the network led will still flash for a bit but the power led will dim. the fan will not turn off even when the power led dimmed. i tried unplugging the network cable but still the fan won't turn off.

Ok - now that we have verified the unit IS hibernating - what exactly is the issue?  The network LED WILL flash and the only way to prevent that is to swith the unit off or unplug the network cable.
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RAID1 is for disk redundancy - NOT data backup - don't confuse the two.

heartog

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Re: Network light blinking even if not accessing
« Reply #10 on: July 28, 2011, 12:24:59 PM »
i want the fan off too
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ivan

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Re: Network light blinking even if not accessing
« Reply #11 on: July 28, 2011, 03:20:14 PM »
What is your setting for the fan in the setup page?
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heartog

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Re: Network light blinking even if not accessing
« Reply #12 on: July 28, 2011, 05:15:32 PM »
Auto:off/low/high
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