WD20EARS-00MVWB0 Westerd Digital Cavier Green 2TB

I call it a hub because it can't be configured like a switch. All the traffic goes to all the ports. So why is the ReadyNas so particular about the hard drive that can be used with it? Is this a Linux thing?

marksb wrote:
I call it a hub because it can't be configured like a switch. All the traffic goes to all the ports.

If you post the manufacturer and model, then it should be easy enough to tell what it is.

If all the traffic goes to all the ports, then it is in fact a hub. However, that has nothing to do with the ability to configure the device. Only "smart switches" and "managed switches" can be configured. Normal consumer switches cannot be configured (and still do not send all the traffic to all the ports).

Is your linksys router support gigabit ethernet or 100 mbit?

marksb wrote:
So why is the ReadyNas so particular about the hard drive that can be used with it? Is this a Linux thing?

First of all, I would be surprised if changing to drives on the HCL solves your 0x80070027 error. It would be nice to know the outcome (either way), since there are some other folks getting this error with the v2 products.

Normally RAID devices work best with enterprise drives. Some of the differences are described here: http://download.intel.com/support/mothe ... rives_.pdf However, enterprise drives cost considerably more, so often desktop drives are used in consumer NAS products. Netgear accommodates this by testing drives, and putting the devices that pass on the HCL.

The router and the hub are both 100 mbs. When I did the direct connection at 1 gig, I was able to copy my entire media library without getting the error.

According to Netgear and other network device manufacturers, unmanaged desktop devices such as the GS105, FS105, FS605 and GS605 and similar devices are called swiches not hubs, yet since it is unmanaged, it cannot be configured either. Looking at on line computer retailers, most the devices listed as hubs under the networking heading are USB, however, there are others that are firewire or serial, but none listed are ethernet. So if it is an ethernet device, it is a switch. And while you may think the signal goes to all ethernet ports, the activity light will only be active on the port to which the device with the correct IP address is connected.

It would still be helpful to know the make and model of the switch/hub.

marksb - Your tests so far suggest that the connection speed is somehow related (or possibly half duplex/full duplex negotiation).. it would be useful to try a direct connection, but manually set the speed on the PC NIC card to 100 mbits.

PapaBear wrote:

According to Netgear and other network device manufacturers, unmanaged desktop devices such as the GS105, FS105, FS605 and GS605 and similar devices are called swiches not hubs, yet since it is unmanaged, it cannot be configured either. Looking at on line computer retailers, most the devices listed as hubs under the networking heading are USB, however, there are others that are firewire or serial, but none listed are ethernet. So if it is an ethernet device, it is a switch. And while you may think the signal goes to all ethernet ports, the activity light will only be active on the port to which the device with the correct IP address is connected. It would still be helpful to know the make and model of the switch/hub.

Papabear - Ethernet hubs in fact do exist, though they are decidedly old-school (and I don't know of anyone making them now) - http://en.wikipedia.org/wiki/Ethernet_hub. Back in the late 90s, Netgear did make them (EN104TP/EN106TP/EN108TP). Programmers who do network stuff tend to hang onto them, since they are quite convenient for taking protocol traces (the fact that they do send all the traffic to all the ports is quite convenient for that). Port mirroring on a smart switch can also be used of course, but smart switches are fairly expensive.

However, I agree that the device is more likely to be an unmanaged switch. It might be interesting to know the model, but perhaps not all that useful for solving the main problem, since both the router and the switch/hub provoked the same error.

I can't find the model number but on the front it says "Hawking 100base-TX 4-port Hub". Yes I've had it a long time. I just googled it and found the model number which is IH400TX. I just figured that I needed to either get a gigabit switch or a gigabit router. Later today I will try another test with the nic set at 100. I tried using my wireless netbook to transfer files from the pc to the Nas. It took a lot longer of course but I wasn't getting nearly as many errors. Maybe 1 out of 10 usually at the start of the file transfer.

Upgrading to a gigabit home network is a good idea, you will get a lot faster transfer speeds if you do. Though you will need CAT 5e or CAT 6 cabling (if you are running over any distance).

Though of course these weird disk full errors should be fixed. If you are following other threads, you will see that some other folks are getting the same error (with different disks). I believe that all are running the new ARM products.

Well, now this is interesting. I have a Realtek nic onboard on an ASUS motherboard. It has a setting for Speed & Duplex that cannot be changed from auto. It has another setting for Auto Disable Gigabit with values of Disabled, Re-LInk, Battery and Re-Link, Battery or AC. I did a direct connection with it set to Re-Link, Battery or AC and did not get the error. So I left it and reconnected the Nas and pc to the router and...........yep, no error. As soon as I reset it to Disabled, I get the error. So now I have a fix until I upgrade the router. I wished I had a gigabit switch that I could try but if it works with the direct connection then I shouldn't have any problems right?

Thanks guys.

My router (Netgear WRN2000) only has 100Mb/s ports so I have a Netgear GS108 switch to which my desktops and NAS units are all connected. Thus between them I have gigabit speed. My printers are attached to the router, and of course the laptop with wireless N is as well. The slower speed through the router does not affect the laptop or internet connection since the 100Mb/s speed is faster than my internet connection and the effective 802.11n speed is right at the 100Mb/s speed of the ports on the router. Most of my heavy work is done on the wired desktops anyway.

Hi,
I had the same error pop up today. I have a Duo v2, with a single WD20EARX-00PASB0 drive. (which is on the compatibility list)
When copying a large file (6 gig) about halfway through windows reported an out of disk space error. I clicked retry and it worked after that.

I did a file volume check afterwards and radiator said it fixed block issues...

I too have a very old 100mbit belkin router connected wired.