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[unimatrix]

hi,
i have two dns 323 attached on wired connected to my Dir655.
one is ip 192.168.0.112
the other is on 192.168.0.115

what methods would u recommend to transfer between the two DNS323s?

i tried to use windows copy (on wireless, vista 64bit), seems very slow (<1MB/s).

any other method?

thanks

[dosborne]

Copying between any network shares from a windows machine is slow as the giles must be transfered from one device, to the windows box, then written to the second device.

Your best option is to use one device to copy to the other directly.

rsync is one option, likely the easiest, but it depends on what you are copying, how often it updates, etc.

[JavaLawyer]

How much data do you need to transfer?  If you decide to use a PC as an intermediary and you have terabyte(s) of data to copy, you're looking at a couple of days of copying.  If you choose to go this route, I strongly recommend that you use a hard-wired PC and you should be able to achieve a throughput 9 to 15 mbps (depending).  Also, you should use a backup application on your PC to ensure everything is copied correctly (rather than the drag-drop method).

[unimatrix]

i need to transfer around 700GB of data ..
it's a one time affair because i'm migrating contents from smaller HDD to the bigger one..

i have re-arranged the disks so that now one smaller HDD is in the same nas as the bigger one

and with FFP, telnet to the box..
>> rsync -r /mnt/HD_a2/source_folder /mnt/HD_b2/dest_folder

gives me ~4MB/s transfer rate.. that's slow, isn't it?
any other ways to speed up transfer?

[archie1810]

My assumption is u r on gigabit network now... Change the network cable to Cat6 or at least Cat5e.
Your method is the one i'm using but one 323 and the other 320...

[unimatrix]

My assumption is u r on gigabit network now... Change the network cable to Cat6 or at least Cat5e.
Your method is the one i'm using but one 323 and the other 320...

i'm using cat5e cable. at 4MBps, that's 30% of a 100Mbps connection, no?

i'm also assuming that DIR655 has a gigabit connection?

[archie1810]

I'm using Cat6 cable, a bought one, not own made one.
I hv my dedicated gigabit switch not from my router, all my gigabit devices are only connected to this switch including the 2 NAS too, so far transfering file is ok even i never really closely monitor how fast

[JavaLawyer]

i'm using cat5e cable. at 4MBps, that's 30% of a 100Mbps connection, no?

i'm also assuming that DIR655 has a gigabit connection?

I've read reports about Windows Vista/7 users experiencing throughput bottlenecks of ~4 Mmbps on the DNS series due to some unknown issue.  I experience this issue on a Windows 7 box approximately once a month, while the other devices on my network consistently achieve ~10-15 mbps.  Rebooting the Windows 7 box fixes the problem until the next occurrence.  Have you tested throughput on a different OS or tried rebooting your Vista box?

[unimatrix]

I've read reports about Windows Vista/7 users experiencing throughput bottlenecks of ~4 Mmbps on the DNS series due to some unknown issue.  I experience this issue on a Windows 7 box approximately once a month, while the other devices on my network consistently achieve ~10-15 mbps.  Rebooting the Windows 7 box fixes the problem until the next occurrence.  Have you tested throughput on a different OS or tried rebooting your Vista box?

yes, restarted my windows 7 pc already.

the transfer rate that i'm giving above (~4MBps) is from rsync command from using telnet on the dns 323.

[Wiggs]

Are you using Jumbo Frames?

Regards,


Wiggs

[unimatrix]

enabling/disabling jumboframe doesn't seem to have effects on the transfer rate

[dosborne]

For a one time copy between drives on the same NAS, rsync is not your fastest option as it has quite a bit of overhead. The copy (cp) command will perform much faster.