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Rn312 (and Duo v1): Transfer speeds - manage my expectations!
This is another quesiton about transfer speeds. I am aware that there are so many variables involved in optimising these so I'm going to state my situation and hope for some broad guidance on what my...
Thanks Stephen. That's all really useful.
The link I provided was to a TP-LINK AV500 powerline adaptor (not trendnet) and if you scroll down the amazon page to the table, you'll see the PA411KIT doesn't have a gigabit ehthernet connection.
Here's the link again in case something is going awry above.
If you agree, my Q1 is still confusing me.
In the meantime, I will try a direct connection of the PC to the router too - just to rule out the powerline upgrading issue.
I'm going to try a q4, too. On a RSYNC backup from the Duo to the RN312, can I see the speed of that backupjob in the System>Performance>Network on front view of the RN312? If so, that's showing about 3-4MBps. But as I understood it, this is a NAS to NAS backup so why is it that slow?
hander2 wrote:
Thanks Stephen. That's all really useful.
The link I provided was to a TP-LINK AV500 powerline adaptor (not trendnet) and if you scroll down the amazon page to the table, you'll see the PA411KIT doesn't have a gigabit ehthernet connection.
I did click on the link, but entered the wrong thing when I googled for the specs (and when I posted). Some AV500 adapters do provide gigabit, the TP-Link seems to start that with their AV600 product.
That does make the PC report confusing on speed confusing.
hander2 wrote:
I'm going to try a q4, too. On a RSYNC backup from the Duo to the RN312, can I see the speed of that backupjob in the System>Performance>Network on front view of the RN312? If so, that's showing about 3-4MBps. But as I understood it, this is a NAS to NAS backup so why is it that slow?
It is NAS-NAS, but rsync is computationally more demanding than NFS or SMB. The duo's CPU is quite slow, and that is the limiting factor. Rsync is of course very robust, and incremental backups are usually small - the speed is enough to get the job done, but not stellar.
You can do a test using Windows (SMB) backup job on a test share. That should give you something in the 15-20 MB/s range (again limited by the older Duo).
Your large file copy speed from a new PC to the RN312 should be close to 100 MB/sec (see the RAID-1 performance results here: http://www.smallnetbuilder.com/nas/nas-reviews/32180-netgear-readynas-300-series-reviewed?showall=&start=1).
BTW, NasTester is a pretty good tool for performance measurements: http://www.808.dk/?code-csharp-nas-performance.
hander2,
Sorry I can't offer any other advice than what StephenB has already provided, but as a RN312 owner, I can tell you he is on the button with the speeds. My 312 on my GB network provides an average of 114 MB/sec Write and 107 MB/sec Read speeds, measured with a 400 MB file through the excellent NAS Performance Tester. My Duo is a bit more of a slouch at 18 and 36 respectively, but that's fine for that old war horse :smileywink:
I hope you find out what the issue is.
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