Synology DS710+ Mini-Review and Performance

[Zarch]

Well I couldn't resist, so went and bought the new Synology 2-bay DS710+ NAS as an upgrade from my Synology 4-bay CS407.

I written this little review along with performance figures straight out of the box.

The quoted read/write figures from Synology are over 100MB/sec read and write, so I was eager to see if I could achieve this right from the off.

There are certainly issues raised, questions that need asking and tweaking required to get more performance out of this box.

http://zarch1972.blogspot.com/2010/02/synology-ds710-nas-mini-review.html

Any questions, please let me know

 

[occamsrazor]

Thanks for the review.... Can you comment on the noise (or lack of) of this unit?

 

[Zarch]

Thanks for the review.... Can you comment on the noise (or lack of) of this unit?

But tough at the moment as i've got my old CS407 4-bay unit running at the same time as the DS710+.

The spec sheets say it should be a little quieter though. But i never had any problems with the noise on the CS407.

 

[Zarch]

Updated the blog with some more performance tests.

Any questions/thoughts, please let me know.

 

[Zarch]

To summarise my findings so far:

Reads
710+ to PC File Copy: 46MB/sec
710+ to PC FTP: 61MB/sec
710+ to Mac File Copy: 61MB/sec
710+ to Mac FTP: 88MB/sec

Writes
PC File Copy to 710+: 109MB/sec
PC FTP to 710+: 96MB/sec
Mac File Copy to 710+ : 70MB/sec
Mac FTP to 710+: 102MB/sec

Writes are superb, but for an unknown reason, the reads just don't compare.

Anyone got any thoughts of what to try next? I'm considering playing the jumbo frames next.

 

[peterk]

To summarise my findings so far:

Well, I believe those 100MB/s write speeds are buffered writes. It's a raid1 volume, so the NAS has to write the data to both drives, which means, the speed is limited by the physical write speed of those HDD-s you used - except, when writes are buffered. The onboard 1GB RAM must have helped a lot when you transferred that smaller 650MB iso file.

The reason for slow iso extraction is that the NAS has to load the iso to memory, unpack it, and write the unpacked data back to the volume. So it requires double HDD access. And maybe buffering gets less effective too, since the loading/unpacking process takes the memory away of the disc buffer.

As far as the slow read speeds go, I have no clue. This could be faster, since the NAS could read the data simultaneously from the 2 disks (one block from one and an other block from the other), so the physical read speeds of the HDD-s should not limit the transfer speed as it does for writes.

 

[Zarch]

Thanks for the detailed reply PeterK, appreciate it.

Yes, the reads are indeed baffling, especially as the low speeds are consistent across different OS and copy types.

Going to carry on digging though to try and find answer to the problem.

If anyone has any thoughts, then i'm all ears!

 

[Zarch]

I've been playing with Jumbo Frames and this has positively affected the results of the tests, most of which which I've re-run.

See the blog: Zarch's Blog

Thoughts?