NV+ v2 poor performance

What firmware are you running?

Had 5.3.9, tried 5.3.10 beta but results are the same. Transfer speed between 2 PC's are 80MB/s on the same network

This review measured ~60 MB/sec read and ~40 MB/sec write for large sequential file access: http://archive.benchmarkreviews.com/ind ... mitstart=9

PC World measured ~80 MB/s read and ~37 MB/s write (again sequential large file tests). You won't get 80 MB/s write performance for sure.

Are jumbo frames off (the NV+ v2 doesn't support them)? Can you tell us more about your network (routers, switches, etc)?

Maybe also try NasTester, and see what speeds it measures. http://www.808.dk/?code-csharp-nas-performance

I might not get 80MB/s write but still I was expecting better performance as I was getting more speed with lesser NAS with which I got close to what was quoted. Anandtech tested 73 read and 50 write on large file copy

Jumbo frames are off. I have 24 port unmanaged Netgear JGS524 gigabit switch. I am getting 100MB/s speed for transfers between PC's

Tested direct connection to PC results were a bit better and reversed 35 read and 25 write for single large file copy.

Nas tester shows 24 write and 28 read.

It looks like it's back to my original plan of using proper server. I had nice Dell 1U server that I had acquired for my original plan of building NAS but I found fans in it too loud for home environment. So I bought D-Link on as it was coming with free IP CCTV camera so after selling camera on e-bay it only worked out about £15-20 for the NAS. I wanted a bit more speed so I purchased NV+ but got less speed.

I guess my drives are going back in D-Link for time-being and I am on the hunt for another server. I will just need to hide it somewhere to get rid of the fan noise, maybe in loft or garage.

Anybody interested in NV+ v2?

I agree the NV+ v2 should be faster - something is likely wrong. Though I don't own one, so I usually can't offer much specific troubleshooting advice on that model.

Did you try turning flow-control on in the PC NIC? Also, did you check the SMART stats?

If you purchased this new, you could contact Netgear support and see if you can get an RMA.

Yes , flow control was on, switching it off did not make much difference. No SMART errors on discs either in NAS or PC

Tried switching from RaidX2 to Flex Raid, this have improved it slightly to 25 read, 40 write. But It could be down to disk being empty now. Still not fast enough and still does not explaiN why reads are a lot slower then writes.

Now I am getting somewhere. Downgraded back to 5.3.9 firmware and suddenly it writes at 45 and reads at 67. Go figure, it was shipped with 5.3.9 and was not working properly, going to 5.3.10 beta did not help, downgraded back and now it's fine.

Great.