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Forum Discussion
HORRENDOUSLY bad network performance with ReadyNAS NV+
Yes, I've read the "How to optimize the ReadyNAS performance" guide, yet I really don't think it applies to this case. Something is seriously wrong. The best I can get out of this thing is 1.3MB/s. I've been measuring throughput with sftp, and I get the same performance over AFP - takes about 40 minutes to transfer 3GB.
I've tried running it through my router and connecting to it directly to my iMac. No difference. I have no such throughput problems from my iMac to other computers. Even over wireless I get 11MB/s. Other computers (more Macs) to the ReadyNAS exhibits the same paltry 1.3MB/s. So, I believe I've ruled out the possibility that it's an issue with my LAN or other computer. It's the ReadyNAS.
I tried downgrading to RAIDiator-4.1.7. No difference, so I tried reinstalling 4.1.8. No difference. Disabling every file protocol, service, and add on makes no difference.
Here's my setup:
Hostname: Fungo
Model: ReadyNAS NV+ [X-RAID]
Firmware: RAIDiator 4.1.8 [1.00a014]
Memory: 256 MB [2.5-3-3-7]
IPv4 address:: 192.168.1.12
Volume C: Online, X-RAID, 3 disks, 81% of 1352 GB used
Jumbo frames is NOT enabled, as my 4th gen Airport Extreme doesn't support it.
Status: Online / 1000 Mbit / Full-Duplex
Network Errors [Ethernet 1]
Auto-negotiation 0
Bad packets 0
Disconnect 0
False carrier 0
Idle errors 0
Link failures 0
Receive errors 0
Symbol errors 0
VLAN tags 0
TCP Retransmits 2
Unrecovered TCP Retransmits 0
Health
Device Description Status
Disk 1 Seagate ST3750640NS 698 GB , 41 C / 105 F , Write-cache ON OK
Disk 2 Seagate ST3750640NS 698 GB , 45 C / 113 F , Write-cache ON OK
Disk 3 Seagate ST3750640NS 698 GB , 42 C / 107 F , Write-cache ON OK
Fan 1 2083 RPM OK
Temp 1 29.5 C / 85 F [Normal 0-60 C / 32-140 F] OK
UPS 1 Not present OK
The log shows nothing of interest. I've got nothing. I need help.
I've tried running it through my router and connecting to it directly to my iMac. No difference. I have no such throughput problems from my iMac to other computers. Even over wireless I get 11MB/s. Other computers (more Macs) to the ReadyNAS exhibits the same paltry 1.3MB/s. So, I believe I've ruled out the possibility that it's an issue with my LAN or other computer. It's the ReadyNAS.
I tried downgrading to RAIDiator-4.1.7. No difference, so I tried reinstalling 4.1.8. No difference. Disabling every file protocol, service, and add on makes no difference.
Here's my setup:
Hostname: Fungo
Model: ReadyNAS NV+ [X-RAID]
Firmware: RAIDiator 4.1.8 [1.00a014]
Memory: 256 MB [2.5-3-3-7]
IPv4 address:: 192.168.1.12
Volume C: Online, X-RAID, 3 disks, 81% of 1352 GB used
Jumbo frames is NOT enabled, as my 4th gen Airport Extreme doesn't support it.
Status: Online / 1000 Mbit / Full-Duplex
Network Errors [Ethernet 1]
Auto-negotiation 0
Bad packets 0
Disconnect 0
False carrier 0
Idle errors 0
Link failures 0
Receive errors 0
Symbol errors 0
VLAN tags 0
TCP Retransmits 2
Unrecovered TCP Retransmits 0
Health
Device Description Status
Disk 1 Seagate ST3750640NS 698 GB , 41 C / 105 F , Write-cache ON OK
Disk 2 Seagate ST3750640NS 698 GB , 45 C / 113 F , Write-cache ON OK
Disk 3 Seagate ST3750640NS 698 GB , 42 C / 107 F , Write-cache ON OK
Fan 1 2083 RPM OK
Temp 1 29.5 C / 85 F [Normal 0-60 C / 32-140 F] OK
UPS 1 Not present OK
The log shows nothing of interest. I've got nothing. I need help.
7 Replies
Replies have been turned off for this discussion
- Please do not post your serial number.
1.3 MB/s sounds about right over wireless G if a fair distance away from the router (see ReadyNAS Performance Expectations) or if transferring smaller files. What router do you have?
One would think the 11 MB/s you mention is perhaps overstating things a little unless you're using 5Ghz spectrum and perhaps wide channels as well. Is 11 MB/s between your Macs transferring small files or large files.
Is the speed different writing to the NAS vs reading from the NAS?
There have been performance issues found with 4.1.8 and 4.1.7 should be better however as the wireless is the bottleneck, you'd likely only notice a difference over ethernet.
It looks like your unit is an older NV+ v1 unit. If you download your logs (Status > Logs > Download all logs) and extract the zip contents, and look in volume.log, what is the block size? - Not able to provide any help, but I get the same poor performance on my NV+ (even when using a direct connection). I used scp to measure speed and the transfer starts at 1.5MB/s and slowly dwindles down to 650KB/s. Performance is the same with and without jumbo frames turned on. I also have all journaling disabled.
3 disks as well and all are healthy according to SMART+.
Using RAIDiator 4.1.8 on an NV+ (RND4000).
I have another NAS on the same router (a FreeNAS 8 box) and it has normal performance.
Hopefully we can get some help!
Dave - Hey there...
My router is an Apple Airport Extreme 4th generation, and yes I'm using 802.11n with wide channels. But, that shouldn't matter as I'm completely wired over what's supposed to be gigabit ethernet. Like I said, bypassing the router and connecting my iMac directly to the ReadyNAS gives me the same 1.3MB/s. And yes, I know what you're thinking, swapping out cat5e cables proved unfruitful.
On a somewhat anecdotal note, months and months ago I was running all my ethernet through a Netgear GS108 gigabit switch and my internet connection was going through a Netgear FVS338 VPN Firewall. All of a sudden, I started having this problem where my internet connection was strangled down to... wait for it... 1.3MB/s. I'd had the thing for years so I chalked it up to it being old. Shortly thereafter the GS108 just stopped working. Off to the electronics recycler we go. I dumped the UPS they had been plugged into as well. I get this feeling like 1.3MB/s is some kind of failsafe mode or something...
Here's what I get out of the logs grepping for all things "block" and all things "size":
dmesg.log:RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
system.log:Nov 19 23:38:57 Fungo kernel: RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
volume.log:Block size: 4096
Thanks mdgm! Orangechicken, it's you and me...
-Tinymonkey - Can you try setting the speed on the port on the NV+ to 100Mb? I had an issue with my NV and a gs108t-100. I did not see any errors on the ReadyNAS side but when I looked at the switch there thousands of errors. It went away when I set the NV to 100Mb.
The only way I "fixed" this was to upgrade one of the switches to the gs108t-200. - I've updated to 4.1.8-T9. Additionally, I changed Speed/Duplex mode to "100Mb Full-Duplex" with an MTU of 1500. (Also, my NV+ has 1GB of memory.)
No speed change. SCP transfers start at 1.5MB/s and slowly work their way down to about 650KB/s.
So I changed it back to auto-negotiate (and it ended up on gigabit, as it should). Running HELIOS LanTest to my ReadyNAS plugged into the gigabit router, I get:
Write 30 MB to file: 15.95MB/s
Read 30 MB from file: 18.90MB/s
As an aside, running the same test to my FreeNAS box (on the same router), I get:
Write 30 MB to file: 56.25MB/s
Read 30 MB from file: 51.13MB/s
But, still... SCP transfers at 1.5MB/s. - Tried "100Mb Full-Duplex" and "100Mb Half-Duplex"... Still stuck at 1.3MB/s, occasionally creeping up to 1.4 and sometimes down to 1.0 or a bit less.
- If possible I'd avoid using SCP - the cpu in the NV+ is pretty damn crappy, the extra strain of the encrypted connection could be crushing it.
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