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The Graveyard - Products No Longer Supported => D-Link Storage => DNS-323 => Topic started by: mdigiac1 on December 30, 2009, 06:30:21 PM

Title: audible clicking noise slow performance
Post by: mdigiac1 on December 30, 2009, 06:30:21 PM
Hello Everyone,

I installed a new Hitachi 1tb drive into my dlink which I recieved a few days ago. I find that it sounds like the drive is making a loud clicking noise every so often. It sounds like a stupid question but is this normal for the 323? Also I can't seem to get transfer speeds over 8mB/s and my router, pc's are both setup for gigabit and are running across cat 6 wire. I have menually set everything to use full duplex 1000T. Have you guys done anything different to ensure high speeds?

Mike
Title: Re: audible clicking noise slow performance
Post by: fordem on December 30, 2009, 08:20:30 PM
I've had my DNS-323 for roughly three years, and I've never heard it make any clicking noises - I've not used Hitachi drives, but with Seagate, Western Digital and Maxtor drives, it's never clicked, and I don't think it should.

In terms of network setup, mine has always been set to autonegotiate the speed & duplex - it's safer this way - with it manually set, if you had a failure of your network switch and had to connect at 100 mbps, you would have to jump through a hoop or two to change the speed.

Regarding transfer speeds - 8MByte/sec is a little slow for 100mbps and downright pitiful for gigabit, I would guess that you should see at least double that, and under the right circumstances, triple and close to quadruple.

You need to recognize that the transfer speeds is not always dictated by the network speed, you're moving data from one disk, through a disk interface, a network interface, across the network, through a second network interface, a second disk interface and then to a second disk - the transfer speed you see will be the slowest of all of these.  Things like the speed of the disk subsystems, network card drivers, disk fragmentation and file sizes all play a part.

Using 2GB files, autonegotiated speed & duplex, 9000 byte jumbo frames and an IBM server with integrated RAID controller, I've been able to transfer data at sustained speeds approaching 30MByte/sec, (and peaks exceeding 30MByte/sec) when reading from the DNS-323.
Title: Re: audible clicking noise slow performance
Post by: AKFubar on December 31, 2009, 03:56:50 AM
A clicking noise from a hard drive could be a sign the drive is failing and will soon go defective.  I know you mentioned that the drive is new but you should try to isolate the noise.  Try to install the drive outside the DNS-323 and see if the noise persists from the drive.  If it does, I would take it back where you bought the drive and discuss the problem with them and a possible new replacement drive.  This will also help eliminate whether the noise is coming from the 323 or not since the drive is removed.

Good luck with this.
Title: Re: audible clicking noise slow performance
Post by: gunrunnerjohn on December 31, 2009, 07:34:53 AM
I agree, you have a failing drive, hope that's not your only copy of that data!
Title: Re: audible clicking noise slow performance
Post by: mdigiac1 on December 31, 2009, 07:41:16 AM
Some interesting news. Turns out the right side of my 323 is causing the problem. when I took the drive out a put it in left side it is whisper quiet. Seems wierd to me. Mabye Faulty SATA connection. speeds have improved slightly too. I can now get 16MB/s from my mac using wireless N but only 10MB/s from my desktop hard wired. Could there be added overhead with windows 7 that would hinder network performance. I'm not saying that is the issue but something that came to mind. 
Title: Re: audible clicking noise slow performance
Post by: gunrunnerjohn on December 31, 2009, 07:44:41 AM
Well, if it works in the other side, I'd call D-Link and RMA that box.  Does it start clicking if you move it back to the right side?
Title: Re: audible clicking noise slow performance
Post by: mdigiac1 on December 31, 2009, 12:25:57 PM
Ya I think I am taking it back to the vendor It is only a few days old so they should take back a defective unit. I will definately be getting another one though. Thanks everyone for their help. I appreciate it.

Mike