<30MB/s transfer btwn two WD RED 3TB HDDs in my TS-431??

[benlevi]

I just installed a second WD RED 3TB HDD into my QNAP TS-431, and i'm only able to achieve <30MB/s transfer speeds between HDD1 and HDD2 ... why so slow?

Any ideas?

Please help.

System:
Windows 7

[Ron1963]

So how do you copy? I assume with Windows Explorer (so with Samba)? Then this is the speed to be expected, as everything goes via your network (10/100 or Gigabit or even wireless?) and PC/laptop. And if you use encryption on (one of) the drives it's even slower. Also the kind of files you copy is a factor. Small files like pictures is slower than f.i. DVD ISO's.

If you are copying via File Station or create a backup job with Backup Station the action will be much much quicker as everything goes internally over the SATA bus only.

[Don]

2 single disks and no RAID. Risky.

[Moogle Stiltzkin]

So how do you copy? I assume with Windows Explorer (so with Samba)? Then this is the speed to be expected, as everything goes via your network (10/100 or Gigabit or even wireless?) and PC/laptop. And if you use encryption on (one of) the drives it's even slower. Also the kind of files you copy is a factor. Small files like pictures is slower than f.i. DVD ISO's.

If you are copying via File Station or create a backup job with Backup Station the action will be much much quicker as everything goes internally over the SATA bus only.

this pretty much sums it up. internal transfer, filestation for best performance. windows samba will be slower than that

for my input here is a review on your ts-431 capabilities
http://www.eteknix.com/qnap-turbo-stati ... as-review/

In the benchmark i don't see internal NAS transfer e.g. using filestation scenario, but there is a copy file/folder from and to the NAS if your interested in the max performance for it

[Mechant Loup]

So how do you copy? I assume with Windows Explorer (so with Samba)? Then this is the speed to be expected, as everything goes via your network (10/100 or Gigabit or even wireless?) and PC/laptop. And if you use encryption on (one of) the drives it's even slower. Also the kind of files you copy is a factor. Small files like pictures is slower than f.i. DVD ISO's.

If you are copying via File Station or create a backup job with Backup Station the action will be much much quicker as everything goes internally over the SATA bus only.

As a new TS-431P user (I do not know what the difference to plain -431 is), I have found the performance between WD Reds even on local server-side file transfers to be quite dismal. I think it is the NAS hardware that is at blame here, as it simply cannot seem to cope with the I/O. For instance, SSH'ing into the box and initiating an rsync update between two folders that reside in separate RAID-1 volumes, will dawdle on at a meagre 40MB/s. In fact, running the same rsync between the folders as mapped network shares on a Linux desktop achieves the exact same speed, demonstrating that the two-way network traffic is not taxing enough to bottleneck the process compared to a local over-SATA I/O at the server.

[TsuTey]

Since you say Windows I would say thats the Problem. To copy from HD1 to HD2 with Windows you download it to your PC, and upload it to the NAS again. Thats how it works in the Background.

Also, use the advantage of the NAS and configure a RAID

[Don]

Encryption involved?