T49: Getting really tired...

[Ennio]

That is a very high number of TCP retransmits, definitely pointing to a network issue. http://www.readynas.com/?p=310#Troubleshoot

Although the computer is a MacBook, wireless connected to an Airport Extreme, wireless connected to an AirPort Express.

Guess it's too many wireless signals floating around...

No, I don't think it is related to your wireless, because I'm all wired and have the same errors. Overall have the exact same complaints, it seems the thing has slowed down to being pretty much un-usable. I have copied about 900GB of data from my Duo using a USB disk (it couldn't get faster than 1.5 MBytes/sec, which, obviously, therefore took a week to even accomplish! And now I'm trying to re-format the disks, but it is totally unclear if and how it actually reformats them.

My conclusion is that there is something terribly wrong with both networking and the way it reads data from the RAID on the Duo. My router is fine, always has been, but it looks like the Duo uses an entirely different set of protocols over the network than all the other equipment I use.
When I set it to Auto-negotiate the speed, it concludes it's 100 Mbit/s Half Duplex, while the router clearly is Full Duplex (all other auto-negotiating interfaces pick up that speed). I tried switching ports, but to no avail. I have to conclude it's the Duo, not the router.

[Chewbacca]

Ennio: How are you reformatting the disks? Via a factory default? What brand/model drive are you using?

What brand/model of router are you using?

[jonasen]

Only the Devs can answer that. But as a user I'm hopeful it won't be too long now that the 4k sector support they tell us was holding things up has been released and from all reports on the forum I've seen working well.

So jonasen are you using 4k sector disks? If so, previously you may have had poor write performance. Do you have the same slowdown issue you have using FTP on other protocols? Are you still getting TCP Retransmits?

I guess I am on 4k sector now..though I could live with slower speed if the connection would hold. Constantly failing on ~20% of 1.2 gb now despite wired all the way now

On wireless ONE TCP retransmit reported vut still failed so I doubt its the connection really....

[Chewbacca]

What model WD drives do you have? Have you already Factory Defaulted? I have talked to a few users that were seeing the same issues with you and we found out they were using 4k drives and after factory default with T48 or later the problems have went away.

[jonasen]

What model WD drives do you have? Have you already Factory Defaulted? I have talked to a few users that were seeing the same issues with you and we found out they were using 4k drives and after factory default with T48 or later the problems have went away.

Yes, I have factory defaulted. I am trying to copy my files back to the Duo but I don't seem to be able to. Doesn't matter what service I am using either, they all fail after a while. I even tried rsync and it quits after a while with:

rsync: writefd_unbuffered failed to write 32768 bytes [sender]: Broken pipe (32)
rsync: write failed on "/Volumes/media/MyMovieFile.mkv": Operation timed out (60)
rsync error: error in file IO (code 11) at /SourceCache/rsync/rsync-40/rsync/receiver.c(268) [receiver=2.6.9]
rsync: connection unexpectedly closed (396 bytes received so far) [generator]
rsync error: error in rsync protocol data stream (code 12) at /SourceCache/rsync/rsync-40/rsync/io.c(452) [generator=2.6.9]
rsync: connection unexpectedly closed (30 bytes received so far) [sender]
rsync error: error in rsync protocol data stream (code 12) at /SourceCache/rsync/rsync-40/rsync/io.c(452) [sender=2.6.9]

I am not sure what discs I am using. Frontview says it's a pair of:
WDC WD15EADS-00P8B0 1397 GB

Does that tell you anything?

[mdgm]

So what's the machine you are trying to restore from?

Do you see any network errors under Network > Interfaces in Frontview?

WD support should be able to tell you if the WD15EADS-00P8B0 is a 4k sector disk?

[jonasen]

I am trying to restore from my MacBook.

There is one TCP Transmit Error in Network errors but this fails on every try so it doesn't show up there.

[mdgm]

Are you connected via wireless? ethernet?

Could you try restoring using a known good Cat5e or newer ethernet cable and a direct-connection?: How to Direct Connect to your ReadyNAS

[jonasen]

Are you connected via wireless? ethernet?

Could you try restoring using a known good Cat5e or newer ethernet cable and a direct-connection?: How to Direct Connect to your ReadyNAS

I am connecting with a wire to my router, which is connected to a HomePlug which is connected to to a Netgear at the other side.

But I had this problem when it was all wireless, when I was wireless to the router etc.

But sure, I can try wire straight to the Netgear.

[jonasen]

I attached straight to the Netgear with a cable, connected to the 192.168.168.168 port.

AFP (or CIFS, not sure) reported:
The operation can’t be completed because an unexpected error occurred (error code -51).
when I tried copying from Finder.

rsync reported:

rsync: writefd_unbuffered failed to write 32768 bytes [sender]: Broken pipe (32)
rsync: write failed on "/Volumes/media/Movies/MyMovieFile.mkv": Bad file descriptor (9)
rsync error: error in file IO (code 11) at /SourceCache/rsync/rsync-40/rsync/receiver.c(268) [receiver=2.6.9]
rsync: connection unexpectedly closed (62 bytes received so far) [generator]
rsync error: error in rsync protocol data stream (code 12) at /SourceCache/rsync/rsync-40/rsync/io.c(452) [generator=2.6.9]
rsync: connection unexpectedly closed (30 bytes received so far) [sender]
rsync error: error in rsync protocol data stream (code 12) at /SourceCache/rsync/rsync-40/rsync/io.c(452) [sender=2.6.9]

Any suggestions?

[jonasen]

So what's the machine you are trying to restore from?

Do you see any network errors under Network > Interfaces in Frontview?

WD support should be able to tell you if the WD15EADS-00P8B0 is a 4k sector disk?

Apparently the WD15EADS-00P8B0 is not a 4k sector disk, but I should still be able to use the disk after a factory reset, right?

[mdgm]

Yes you should provided the disk is O.K. It's weird that it's not working. Could you try rebooting your Mac and giving it another try?

[sphardy]

You could also try creating a new user account on your mac and then repeating the tests - this would rule out any settings or software on the mac used with your regular account from interfering with the transfer

[jonasen]

Tried a new account but same problem. Connection is broken after a while. It's like the connection times out like when it's idle even though it is actively being used while copying.

[edit]
Can add that most copying comes in bursts even while it works. It copies 100 MB really fast, then it stops for 10-15 seconds before going another 100 MB burst. Then after a while it times out...as usual
[/edit>

[devilcup]

a non 4k disk is able to work on 4k sector partition.

try to use normal network setting, disable jumbo frame. stop spin down, etc.