* fritzbox is connected to switch. readynas and macbook are connected to switch. * readynas uses a static ip configuration / 1000Mbit with full duplex is auto negotiated as expected * jumbo frames are disabled * On the readynas there are no 3rd party add ons running. Enabled services are cifs/afp/ftp/firefly(hardly used) * I also tried connecting the laptop directly to the NAS without any switch in between but that made no difference
<EDIT> : I tried the whole thing with jumbo frames disabled- While it increases the read performance it totally destroys write performance. Uploading a 1GB file to AFP drops to below 4MB/sec. I guess OSX won't set MTU beyond some standard value (?).
[Issue]
To cut to the point i am experiencing severe performance issues. Sadly I can't be sure when those started because i hadn't used the readynas a lot for some time but wanted to archive some data now and noticed that transfers were horribly slow.
[Tests]
Tests were carried out by reading/writing data to/from mounted share via 'dd' or using lftp for the ftp transfers. Tests were each carried out at least twice. I realize those aren't super exact numbers or measurement tools but they should suffice to demonstrate that the performance is lacking for some reason.
Currently I only have a macbook for performance testing. Some crappy old EeePC around but that does not even have a Gbit ethernet adapter. I could boot some linux live cd and check if this issue might be in any way OS related later on.
Also, as a last additional question - is it normal that while navigating in frontview there are delays of several seconds until some subpage is loaded ? Not for all pages all the time but often enough.
Any ideas/questions for further detail on this ? I am pretty sure that the performance must have been much better in the past because i would certainly have noted it before otherwise.
$ dd if=/dev/zero of=test.bin bs=1048576 count=500 500+0 records in 500+0 records out 524288000 bytes transferred in 22.583006 seconds (23216041 bytes/sec)
--> 24216041/1024/1024 = 23MB/sec
So that poses a problem/bottleneck. I will reboot&fsck - which will probably take forever - and I'm not sure if that will be of much help.
*EDIT*
I checked the Hardware Compatibility list : http://www.readynas.com/?page_id=82 My disks (ST31000528AS) are listed as supported for the NV+
I am a bit confused by what hdparm is reporting about the drives though:
So according to this udma5 is selected, but if hdma is to be trusted dma is still switched off anyway ? Trying to set pio mode or dma on/off yields a "Function not implemented"
mgarvey what version of RAIDiator are you running. Looking at your earlier posts it sounds like you may be running 4.1.8 which has a general performance issue.
Also this thread has been dead for months. Best not to revive such a thread as the thread being dead is an indication that the issue is resolved.
