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We take the issue of noise very seriously at KitGuru and this is why we have built a special home brew system as a reference point when we test noise levels of various components.
Why do this? Well this means we can eliminate secondary noise pollution in the test room and concentrate on components we are testing. It also brings us slightly closer to industry standards, such as DIN 45635.
As this can be a little confusing for people, here are various dBa ratings in with real world situations to help describe the various levels.
KitGuru noise guide
10dBA – Normal Breathing/Rustling Leaves
20-25dBA – Whisper
30dBA – High Quality Computer fan
40dBA – A Bubbling Brook, or a Refridgerator
50dBA – Normal Conversation
60dBA – Laughter
70dBA – Vacuum Cleaner or Hairdryer
80dBA – City Traffic or a Garbage Disposal
90dBA – Motorcycle or Lawnmower
100dBA – MP3 player at maximum output
110dBA – Orchestra
120dBA – Front row rock concert/Jet Engine
130dBA – Threshold of Pain
140dBA – Military Jet takeoff/Gunshot (close range)
160dBA – Instant Perforation of eardrum
Noise was measured from half a meter away with two 2TB drives installed.
The system is very quiet and in a virtually silent room you can hear the fan noise, but only very slightly. In any ‘real world’ conditions the fan noise would not be noticeable, and within a business oriented server room the noise would be masked totally.
With two Samsung 2TB drives installed, the system demands 24 watts at the wall when idling, and 53 watts under load. The unit is claimed to take a maximum of 68 Watts under load when all drive bays are populated, but this will be reliant on the drives installed.
Time to test the cooling system. Our room ambient temperatures are 23c which is a reasonable temperature for most people to work and relax within.
The drives remained between 1c and 5c above ambient and the average figures are recorded above. This is a fantastic cooling system and Synology have clearly spent a lot of time adjusting the balance between CFM and dBa.
wozzers, thats outperforming my internal hard drive, over a network lol.
Its way out of my price range for home, but fantastic performance.
Our company bought two of the 1010’s last year and they are incredible. this is even better, didnt think it was possible, especially not for under 1000.
I bought their 211 last year as well after reading reviews here, ive been very happy. This is lovely to look at, but my missus would hack my legs off If I bought it 🙂
Its always embarassing when you buy a cheap SSD and a networked NAS system is faster :p
nice indeed. bit expensive for me, but good for business
They seem to have a good update schedule on their products. especially on a software level.
I never get it why they dont offer lockable drive bays on these business models. its the first thing the IT department will want.
Their software is great, I bought an entry level model last january and its such a pleasure to use. my mates windows server system runs like a dog with the same hardware
Actually the DS1511+ supports drive sizes up to 3TB and natively can house up to 15TB raw therefore and up to 45TB raw via the two optional expansion cabinets.
Andre, you are absolutely right, I just called Synology to confirm and ive appended the review.
Just bought it, along with 2 3TB hard drives… a little afraid to tell the wife…
These seem to be impressive numbers but realistically I would say that the majority of people run their NAS in RAID-5 mode not RAID-0 since the point of a NAS is to have high availability even if some performance is sacrificed as a result. It would be more interesting if you could show up the RAID-5 performance results.
Also, it seems a bit unfair to compare a Synology NAS containing a D525 with Qnap NASes containing a D510 especially since the the D525 Qnap NASes have been available for several months already. Is there any reason to believe that the DS1511+ would out-perform the equivalent QNAP TS-559 Pro+ since they seem to contain very similar hardware?
Hi Mark,
I wouldnt argue about Raid 5, but the problem is two fold. Firstly we only have a specific amount of time we can dedicate to each review, so we opt for Raid 0, as the lower end systems can handle this mode and therefore results are directly comparible across the ranges.
Its not a matter of being ‘unfair’, we have only a specific amount of systems we have tested. We only can test what we get sent.
Hi Zardon,
How can you reach 199 MB/s read and 166 MB/s write? I can’t get that speed with link agregation, I always get no more than around 120MB/s read and write.
Would you please share the setting you use for the network, is there any special setting? Or any setting to get 199 MB/s read and 166 MB/s write.
Best Regards,
Henry
Hi Zardon,
How can you reach 199 MB/s read and 166 MB/s write? I can’t get that speed with Link Agregation, I always get no more than around
120MB/s read and write.
Would you please share the setting you use for the network, is there any special setting? Or any setting to get 199 MB/s read and 166 MB/s write.
Best Regards,
Henry
opps, I am really sorry for double post
There are comments about the fact that the drive bay mounts are plastic and that they don’t offer the security of a lock.
Considering the size of this NAS device I think this is a very minor quibble. A thief could just as easily pick up the whole thing. In a home / SOHO environment this would be a very likely scenario as opposed to a single drive being lifted. Given its cost (value) the NAS would likely be locked in a secure location. In a business environment it could easily find a home in a lockable rack mount case inside a secure server room.
This is a very impressive unit I am hoping to acquire soon.
Nice work Synology!
I agree William, it is a minor quibble. Their business models, released recently have metal bays and locking systems in place.
Good luck with the purchase, I am positive you will be very happy. It is exceptional.
Zardon,
One of the best reviews I’ve read ever!
I am very advanced home user who is interested in such stuff. Currently, I own Drobo Pro (DAS) attached to my MAC. I was very pleased with everything (using iSCSI), but with a penalty when rebooting my iMAC, my other home users lose connectivity to my storage.
I like the NAS solution, I am tempted to buy this box. My only question that I could not get any answer toward, if I buy this box with three HD and using RSH (synology RAID5), can i expand in the future online without impacting data? will Synology takes care of balancing data?
I am used to this from my drobo pro, I expand by adding bigger disks as I go and Drobo will balance data for me.
Thanks, Mo
Hi Mo,
I haven’t tried it to be honest, but going on the data I received from Synology it should handle the addition of extra drives without impacting data and balancing out the content, yes.