Dear all fellow DNS-323 users,
Four topics
1)
I am happy today. I have suffered from "slow" transfer speeds with my NAS from day one, i.e. less than 10 MB (megabyte / sec). I have a SandyBridge i7 2600K running at 4,5GHz and a Gigabit network with all items being Gigabit and jumbo frame compliant so I have spent some time trying to figure out my bottlenecks since it should reside somewhere else. Finally, Eureka!
I have had my PC NIC set to jumbo frames (9014 bytes) but the DNS-323 only have a max setting of 9000 bytes so when doing the test "ping -f -l 9000 mydns323ipaddress" I'll got an error saying fragmented packet/frame. Basically saying that all my frames were resent/fragmented and the network speed being throttled down, down and down cause Microsoft Security Essentials does not allow/receive ICMP messages which could rectify the MTU size. But even if it did it had do it for all frames, not very effcient.
Instead I changed my PC NIC to MTU size 4088 bytes (the next choice besides 9014) and set my DNS-323 to 5000 bytes to give room also for headerinfo. I did new transfer tests of 700MB-1GB files and the speed was consistant at 30-31 megabyte per second. A dramatic improvement vs the previous top speed of 10 MB (average 8 MB) per second.
2)
WDEARS. Yes I have two 2 TB drives and they work perfectly (see speed above). I do not recognize the problems being described in this and various other forums. I run my two 2TB WDEARS in Raid and they formatted without any problems.
3)
The fanproblem is not a VERY big issue but quite annoying. I can also confirm that the fan never stops. If I change the fan setting, click save and change back to (Auto/low/high) and click save the fan stop when the disks are idle, and it stays stopped UNTIL I access the drives again, then the fan starts again and NEVER stops. This ONLY happens to my "new" DNS-323 (C1) and not my old DNS-323 (B1) revision. Both units runs 1.08 dated 12/18/2009, I cannot see build number)
The old (B1) is currently idle (and no fan) at 116F / 47C
The new (C1) is currently idle (with fan on) at 104F / 40C
(I have not tried any of the 1.10 betas, I am waiting for the official release)
4)
Both of my DNS-323 keep doing some other odd stuff, namely to spinup for no apparent reason pretty much on the second once every hour and then spin down. The C1 does keep the fan on while the B1 does not. Why does the units kickstart themselves once every hour.
Despite the problems with these units I must say that I am happy with the funcationality that they provide vs their cost price. The BT client is awesome and I manage it from my iPad which is sweet, not to mention the iTunes support.
My only request would be for DLink to keep up the support and maybe put a little more resources behind the(ir) firmware updates. Maybe they have sold too few units (cost / benefit) to provide a higher priority to this device, what do I know? But what I do know, from having exclusively bought ASUS motherboards throughout my "computer life", is that good support grants VERY loyal users and buyers.
Cheers everybody.
/Knubblo
Author
Topic: Speed of 30 megabytes / sec / WDEARS and fanproblem (Read 2500 times)