I just bought a ReadyNAS NV+ 2x750 and am trying to transfer all of my data from a raid array to it so I can retire my old server.First I tried to use EMC to get all the files over to the NAS, but that did not work at all with an average of 40,000 errors in compares ortimestamps per partition.I could not copy directly from the SATA raid through my network because the server always has files open on almost every partition.But I did try one partition of 10 gig with 8 gigs of files on it. It started well but eventually dropped to a speed of less than half ameg per sec and said it would take days so i aborted it.I transferred one partition directly to my new laptop HP Dv7t widescreen over the network very quickly. i then tried to copy that10 gig partition worth of files to the NAS through my gig network and it still was averaging maybe 500k/sec. This is with the laptopgig ethernet card set for jumbo as well as the NAS. I have done all the performance tweaks to the NAS from the forums. I run througha dlink DIR-655 extreme.Looking through the forums I decided to try a direct connect and transfer started at about 2mb/sec, climbed slowly to 8-9mb/sec,and then continually dropped over time to about 500-600k/sec and stayed there. Needless to say it took hours and hours to finish,and I have 22 more partitions to copy :( If I grab a big file and drop it to the NAS transfer is 28 meg/sec both ways. I realize there is a big difference between this and awhole partition full of files and folders of various sizes, but I really don't think it should take 9 hours to transfer 8 gigs over a giglan should it?Pretty disappointed now because I am looking at days and days just to get my data onto the NAS, and if file transfers are thisslow I might as well just use a usb external drive where I average 12-15 megs throughput.I have ordered a memory upgrade for the NAS and 2 more 750's, I sure hope there is some way to get better data transfer rates.Can anyone help? The laptop is running Vista Home Premium SP1 (of course). The NAS has been updated to latest softwareand firmware.It seems a lot of Vista problems with speed of transfer, but I have tried all the tips here and no matter what the rate alwayslevels at 500-600k/sec

Please try this solutions.faq.php#I%27m_getting_poor_performance_with_Windows_Vista._Is_there_anything_I_can_do%3FAlso if you are running any sort of security software or virus scan software please try turning it off, as I have seen such things as McAfee slow transfer speeds down considerably.

Thanks for the reply, but I have already done all of the tweaks suggested at this site. Nothing seems to really makemuch difference. Dang Vista has some serious problems, but if I downgrade to XP Pro my HP laptop support andwarranty go out the window.All I am trying to do is copy data from old drives to the NAS and it has been days and still no reasonable solutionthat runs at decent speed.I can drag and drop large files back and forth at up to 28m/s .... but as soon as I try to copy large collectionsof folders and files of various types and sizes, the transfer rate starts high and quickly drops to around 500-600k/sec.What I have done now is format a USB as Ext3 using readdynas, copied files from my vista machine into that driveusing the driver for windows, and then I hooked the USB up to the NAS and am doing an nas backup to see if thatis any faster at all, but so far it is also crawling along for a 5.3 gig backup.One thing I did figure out with permissions was that Vista in all its power takes any drives or files created in anotheroperation system and makes them read only for safety. So if you want things to end up OK you have to takeownership of the drives in Vista (takes forever), and then make sure the shares on the NAS are set to assign permissions usingshare permissions.Update: the 5.3 gig backup direct from ext3 usb to NAS took 30 minutes! When compared to what Vista was going to take thisis at least one way for me to get my data onto the NAS, which is all I really need to do since normal use will not becopying gigbaytes of data back and forth.

Use FTP or rsync for faster transfer speeds - that is my tip..staffan

I was having the same slow down problem but now.....Try this:1) Go and get a Netgear Gigabit switch GS6082) Make sure you have the jumbo frame setting ON for the NV+3) Set your computer jumbo frame to 7936 (if you have a Mac, it's easy! I'm not sure about PC, sorry!)4) Connect your computer & the NV+ to the GS608 Giga switch while they are off5) Turn on the switch, NV+(it may need some time to boot up) & your computer6) DONE!My experience:Before: Read ~ 12 to 14 MB/s Write ~ 10 to 13 MB/sAfter: Read ~ 38 to 40 MB/s Write ~ 34 to 36 MB/sI reckon the problem is the router having jumbo frame issue even it said it's a gigabit router! (Believe me, I try so many from different brands!)I hope all these can help, good luck!

Even when I try direct connect bypassing the router (DIR 655) the speed does not improve at all.I strongly believe that it is just something I have to live with when using Vista. I have applied every tweak there is for improving file copy and directory listing performance with Vista and the best I get in I/O tests is 12-14 read or write.Now that I am done transferring entire drives to the NAS it is not really much of an issue, but I would really like to see the speeds that others are reporting.

ReadyNAS NV+ Seems really slow | NETGEAR Communities

31 Replies

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Lichon
Aspirant
May 28, 2010
1.15MiB/s is maximum for 10mbps. Check your NIC reported speed, and if set on auto trying forcing it. Try all your settings 1000mbps full, 1000mbps half, 100mbps full and 100mbps half.
Also make sure your MTU (default is 1500) is the same.

Dont forget that rsync is very slow. Regular AFP, NFS or CIFS transfer with file write verification is faster.

I have NICs on auto (reports 1000mbps full) and MTU is 1492, and I get 10MiB/s speeds easy - regardless of file size.
captain1
Aspirant
May 28, 2010
I just managed to DOUBLE my abysmal speeds up to simply horrible speeds. :-P

i.e. instead of 1MB/s I'm not getting around 2MB/s. Still, this is only 1/100 the expected speed over a 1gbps ethernet. Something must be broken with my NV+. :-(

YES, both NV+ and Mac report gigabit speeds and proper configurations, no jumbo frames, 1500MTU everywhere, only ONE gigabit ethernet switch between them now (Apple Time Capsule), all BRAND NEW and tested Cat6 cables....

I noticed on the NV+ during rsync from there to my Mac, that in "top" that ssh was burning something around 80% of CPU! So I edited /etc/frontview/rsync/Shares.conf to share /c instead of /c/backup. This allows me to run rsync client on my Mac, not on the NV+, and NOT using ssh! The secret code is double colon ::

rsync -av --progress root@ReadyNAS::c /Volumes/manyTBdrive/ReadyNAS.archive

Without the double colon, and the edited Shares.conf file you have to engage ssh to pipe the rsync data, and that apparently is just too much for the poor pitiful little Sparc engine in the NV+.

the normal rsync syntax that engages ssh and bogs things down ever further would be something like:

rsync -av --progress root@ReadyNAS:/c /Volumes/manyTBdrive/ReadyNAS.archive

Ok, so it's taken something like TWO WEEKS to archive 2.5TB. At this new speed (actually averaging about 2.2MB/s) I have 1.2TB more to go, it looks like one MORE WEEK. ((((1.2 * (10^12)) / (2.2 * (10^6))) / 60) / 60) / 24 = 6.31313131days

I'm going to go cry.

<edit>
Lichon: please try copying a few GB of big and small files using rsync, both via ssh and not, and let me know your speeds. Thanks.

<PS edit more>
Woot! I'm transiently up to a whopping 3MB/s! :-P I suspect turning off even NFS (ALL other services were already disabled) may have given NV+ a hair more power. What do y'all think? Is this just wrong? Will factory reset fix this once (if) I get all my data off? X-fingers Xraid :-P
captain1
Aspirant
Jun 27, 2010
I have now TOTALLY RESET my NV+ (factory default, or whatever they call it) with the latest firmware. I thence turned OFF all services and sharing other than rsync and the required https. NV+ reports 1000mbps.

Status: Online / 1000 Mbit / Full-Duplex

iMac shows 1000mbps. The best transfer rates I am seeing (using ::mountpoint instead of :/ to avoid ssh overhead) are sub-5mBps. 4.46mBps to be precise. This doesn't seem right, and I'd really like a solution now. Please?

Oh, and YES, I tried jumbo frames, and got the same or LOWER throughput. Both using 9000 and setting iMac to match NV+ decision of 7636, or whatever size it chose.
captain1
Aspirant
Jun 27, 2010
FWIW, I eliminated ALL the other equipment, connected the NV+ directly to the iMac on the IMAC's known good cat 6 cable, tried various combinations of settings and still couldn't break the 5MB/s barrier. Something is wrong with NV+
Evil_Olverlord
Aspirant
Jul 02, 2010
A. Lenovo X200s, Core 2 Duo L9400 1.86 GHz, 160GB 7200 rpm, 4 GB RAM, Intel LAN Mini b/g; Windows XP Pro 32 SP3
B. ReadyNAS NV+, 4.1.6
C. 802.11g router
D. Lenovo X201s, i7-640LM 2.13 GHz, 320GB 7200 rpm, 4 GB RAM, Intel 6200 wireless a/g/b/n; Windows 7 Pro 32

I just received laptop D as a replacement for laptop A. All is well, except for two problems that were NOT issues with the old computer (A):

1. VERY slow transfer of files from NAS B (mapped as network drive) to laptop D, especially over wireless, though it's not too speedy over a cable either. For example, opening up a 1 MB jpg took over 5 minutes on laptop D over wireless, but only 15 seconds over a cable. On laptop A, the process is no more than a couple of seconds either way. With laptop D, offline file sync is an apparently un-ending process (wireless or cable), whereas with A it is very rapid (either way).
2. Offline file setup with laptop D basically doesn't work. It is very slow, and gives thousands of errors (for jpg, pdf, xls, doc, etc) - all saying something like "this file is in use and could not be copied".

Relevant posts I have read include
-1 http://social.microsoft.com/Forums/en-U ... 336044f05d
-2 http://home.bott.ca/webserver/?p=226
-3 http://openmoonproject.com/nvidia-nvrai ... -problems/
-4 viewtopic.php?f=21&t=33411
-5 http://www.readynas.com/?p=310

Solutions attempted
I have tried the following solutions:
*1 Mapping NAS B shares to a network drive using IP address rather than DNS.
No visible improvement.
*2 Command line: "netsh interface ipv4 show subinterfaces", to see MTU preparatory to resetting it to 1430 (or 1460 or 1492).
Command not found. True whether I run the command as administrator or regular. Some suggest this only works in Vista.
*3 Setting "oplocks" on for the relevant share in NAS Frontview |Network |Performance
No visible improvement.
*4 Running IOMeter as described in -5 above.
laptop A Read 1.72, Read 1.07 MB/s
laptop D Read .04, Write .84 MB/s
Vastly lower than the ReadyNAS results, so perhaps I'm doing something wrong. But D results still far lower than A.

Solutions not attempted
!1 I have not tried Radiator 4.1.7 beta, though some suggest this may help.
I'm not keen to risk essential data (even backed up) on a beta.
!2 Some solutions suggest installing and messing with Samba.
That is far beyond my technical expertise.

Help!

dbott67

Guide

Jul 02, 2010

Evil Olverlord wrote:
*2 Command line: "netsh interface ipv4 show subinterfaces", to see MTU preparatory to resetting it to 1430 (or 1460 or 1492).
Command not found. True whether I run the command as administrator or regular. Some suggest this only works in Vista.

Evil Olverlord wrote:
*2 Command line: "netsh interface ipv4 show subinterfaces", to see MTU preparatory to resetting it to 1430 (or 1460 or 1492). Command not found. True whether I run the command as administrator or regular. Some suggest this only works in Vista.

It should work in Windows 7. I have tested in both Windows Pro 32-bit & 64-bit versions:

64-bit Version of Windows 7 Pro

C:\Users\admin>ver
Microsoft Windows [Version 6.1.7600]

C:\Users\admin>netsh interface ipv4 show subinterfaces
MTU MediaSenseState Bytes In Bytes Out Interface
------ --------------- --------- --------- -------------
4294967295 1 0 23660 Loopback Pseudo-Interface 1
1500 1 24129245 908280 Local Area Connection

C:\Users\admin>netsh interface ipv4 show subinterface "Local Area Connection"
MTU MediaSenseState Bytes In Bytes Out Interface
------ --------------- --------- --------- -------------
1500 1 24131789 909003 Local Area Connection

32-bit Version of Windows 7 Pro

C:\Users\dbott>netsh interface ipv4 show subinterfaces

MTU MediaSenseState Bytes In Bytes Out Interface
------ --------------- --------- --------- -------------
4294967295 1 0 15653002 Loopback Pseudo-Interface 1
1500 1 5245469969 4303407861 Local Area Connection

C:\Users\dbott>ver
Microsoft Windows [Version 6.1.7600]

A few other things:

1. What is the make & model of your router?

2. Have a look at this document to see what level of performance you should expect: http://home.bott.ca/webserver/?p=363. In your case, the XP machine seems to be performing properly but the Win7 machine seems to be painfully slow, indicating that the issue is not likely a hardware issue with the NAS. In the article linked to above, check the next steps section and try a direct connection to see if it improves. If not, try setting the MTU on the NAS to 1492.

Evil_Olverlord

Aspirant

Jul 02, 2010

dbott67 wrote:

It should work in Windows 7. I have tested in both Windows Pro 32-bit & 64-bit versions:

dbott67 wrote:
It should work in Windows 7. I have tested in both Windows Pro 32-bit & 64-bit versions:

Thanks. I tried again and it worked. The only thing I changed between this and several previous attempts was to change directories to C:\Users

C:\Users>netsh interface ipv4 show subinterfaces

   MTU  MediaSenseState   Bytes In  Bytes Out  Interface
------  ---------------  ---------  ---------  -------------
4294967295                1          0     834378  Loopback Pseudo-Interface 1
  1500                1  8343449370  303262111  Wireless Network Connection
  1500                5          0     115456  Wireless Network Connection 2
  1500                5          0      70848  Bluetooth Network Connection
  1500                2  23999665680  495200931  Local Area Connection

dbott67 wrote:

1. What is the make & model of your router?

dbott67 wrote:
1. What is the make & model of your router?

The router is an ActionTec MI424WR (from Verizon FIOS)

dbott67 wrote:

2. Have a look at this document to see what level of performance you should expect: http://home.bott.ca/webserver/?p=363. In your case, the XP machine seems to be performing properly but the Win7 machine seems to be painfully slow, indicating that the issue is not likely a hardware issue with the NAS. In the article linked to above, check the next steps section and try a direct connection to see if it improves. If not, try setting the MTU on the NAS to 1492.

dbott67 wrote:
2. Have a look at this document to see what level of performance you should expect: http://home.bott.ca/webserver/?p=363. In your case, the XP machine seems to be performing properly but the Win7 machine seems to be painfully slow, indicating that the issue is not likely a hardware issue with the NAS. In the article linked to above, check the next steps section and try a direct connection to see if it improves. If not, try setting the MTU on the NAS to 1492.

OK. Tried the direct connection, with the following results:
- jpgs that took 5 minutes before opened much quicker. Not exactly instant, but within a couple of seconds. So, much improved.
- I copied a couple of files back and forth. 4 and 18 MB files appeared to copy instantly - no lag at all.
- On the other hand, synchronization of a small mapped network drive was still very slow (I didn't wait for it to finish).
- IOMeter gave results of roughly 24.5 and 14.5 MB/s. (Both tapered down a bit toward the end of the test).

Evil_Olverlord
Aspirant
Jul 04, 2010
The direct connection was much more rapid. I tried two further things:
* setting the NAS MTU to 1492 (which you had suggested if the direct connection did NOT help, but I figured what the heck). It did not help in the slightest. IOMeter results .04, 1.0.
* setting the Windows 7 machine MTU to 1430. This had a dramatic impact - IOMeter results went to 1.6 and 2.0. I don't know whether these are good for a wireless connection, but they're a LOT better than before.

In practical terms, 2 MB jpegs still take 2-3 seconds to load, but they DO load.

Many thanks for the tips. All my files are on my NAS, and I was starting to consider installing XP on the new laptop. Now, hopefully, I won't have to.

dbott67

Guide

Jul 04, 2010

Evil Olverlord wrote:
setting the Windows 7 machine MTU to 1430. This had a dramatic impact - IOMeter results went to 1.6 and 2.0. I don't know whether these are good for a wireless connection, but they're a LOT better than before.

Evil Olverlord wrote:
setting the Windows 7 machine MTU to 1430. This had a dramatic impact - IOMeter results went to 1.6 and 2.0. I don't know whether these are good for a wireless connection, but they're a LOT better than before.

That's in the ball-park of expected performance for wireless G. Read this article for what kind of speeds you can expect using various types of networks and/or ReadyNAS: http://home.bott.ca/webserver/?p=363

rev_tomas
Aspirant
Jan 18, 2012
Hi

I have a readynas Duo and have had serious problems with the performance.
Only from my vista computer to my readynas.

I noticed something strange today, If I mapped a network drive to my nas suddenly the speed improved from 4-5kb/s to about 2mb/s
I dont know Why mapping seemed to make a difference but it sure did.

It is still some performance improvement to be done.

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ReadyNAS NV+ Seems really slow

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