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[Bulles30]

Hi,

It's the second time I experienced a mistake :
For some unknown reason, my DNS freeze suddenly and the only solution is to unplug the power cord.
After that, DNS restart normaly and everything seems to work fine.

But :
- I have no mail to inform me about something like AC loss for example,
- some subdirectories moved ! the subdirectory trees are changed. As I can see, there's no loss, but only movements. And the shares remains, but if the previous contents moved, the changes are empty after.

Is it a bug ?

Precision : I use exactly the same disks in Raid 1 (WD 1 TB)

Thanks for your answers.

By

[ivan]

How are you viewing these problem directories, if on a PC what operating system?

The first thing you should be investigating is the cause of the freeze. 
Were you trying to write files to the NAS? 
What was the last action before the freeze?

I ask these questions because the two problems could be related - solve one and you solve both.

[Bulles30]

It's very hard to identify the cause :
- 4 PC (1 W7 64, 1 W7 32, 2 W XP 32) connected by wifi on a router and the DNS 320 connected directly on the router,
- I use offline function on 2 PC (1 on XP and the other on W7 32), but not on the same directories.
- There's file indexation of the logical units (mapping on the shares of the DNS 320) by windows directly (MS search 4.0 on W XP and integrated search engine on W7 with a microsoft patch).
And of course everything works at the same time. I could say that there's probably 90% of read activity.
- smart test of the disks every night without problems,

One thing I noticed (for the beginning I use DNS 320 :1 year) : when I modify location of directories (cut/paste, copies, ...) from windows xplorer the result is not correctly displayed in windows explorer. The old location remains on the screen. It's the same, regardless of windows versions.

Anyway, I would appreciate a function like "chkdsk" on a PC in order to correct problems.

[ivan]

As you say very hard to identify the cause.  We have 15 OS/2 PCs, 3 servers, 4 android based pads, one win XP running in a VM and the odd clients win notebooks that 'talk' to at least one of our DNS-320s, all without creating the problems you are seeing.

Not being well versed in windows but knowing what gets thrown at all our D-Link NAS boxes, both on and off site, I tend to think it MAY be a problem with how your win boxes are set up to access your NAS.

As an after thought since you say your boxes connect via WiFi - interference.  We had a client connecting to a DNS-323 via WiFi that was having problems, files not being written and a very slow connection.  As far as we were concerned there was no problem in our repair shop but the problem was confirmed on site, an office block.  When we moved his WiFi AP to a different position the problems went away.  We discovered another AP in a different office on the same channel and when we inquired  they had been having problems as well that had now stopped.

Is it possible for you to do a test using a wired network?

[Bulles30]

The complete connection drawing includes in fact wifi g for some PCs, a CPL link for one of the PCs, and the DNS320 is wired directly to the wifi router. I checked last year the channels used by other wifis in the neighborhood and I set up all default channels to the only one not used (channel 6 in my euopean scheme).
There's no performance differences between CPL and wifi. and the speed is high enough to permit video streaming on every PC.

I also noticed an other thing : the problem only affected one share, mapped on a network drive in windows.
That's all for the moment...