Like every other website on the planet, SmallNetBuilder uses cookies. Our cookies track login status, but we only allow admins to log in anyway, so those don't apply to you. Any other cookies you pick up during your visit come from advertisers, which we don't control.
If you continue to use the site, you agree to tolerate our use of cookies. Thank you!

Router Charts

Click for Router Charts

Router Ranker

Click for Router Ranker

NAS Charts

Click for NAS Charts

NAS Ranker

Click for NAS Ranker

More Tools

Click for More Tools

NAS Reviews


I tested the DS1512+ with DSM 4.0-2228 firmware, using our NAS test process with RAID 0, 5 and 10 volumes. As is our standard practice, I used only four drives configured into each volume type.

Windows File Copy tests were pretty consistent for RAID 0, 5 and 10, with the lowest result of 94 MB/s for RAID 0 write. Highest filecopy throughput was 106 MB/s from RAID 5 read.

Synology DS1512+ DiskStation benchmark summary

Synology DS1512+ DiskStation benchmark summary

Intel NASPT File Copy results were about 20 MB/s higher for writes across the RAID modes, but about 15 MB/s lower for reads. Highest NASPT write throughput was 127 MB/s for RAID 5 write and lowest read was 91 MB/s. Note that the highest possible throughput from a Gigabit connection is 125 MB/s, so there is probably some write cache effect baked into the results.

iSCSI performance of 98MB/s for write and 74 MB/s for read places the 1512+ among the top five of all RAID 5 capable NASes tested.

Since Synology NASes have built-in FAT, EXT3 and EXT4 formatting for external drives, I was able to run a full set of backup tests. USB 2.0 tests to our standard Iomega UltraMax Pro drive in RAID 0 produced mid-20 MB/s speeds that are about the limit of that connection's capacity. Fastest eSATA backup of 84 MB/s was obtained with the Iomega drive FAT-formatted. But USB 3.0 was close behind with a best case of 80 MB/s with a WD MyBook 3.0 drive formatted in NTFS. By comparison, Network backup to a DeltaCopy target on our NAS Testbed system was downright poky at only 37 MB/s.

To see how the DS1512+ fared against other RAID 5 capable NASes, I ran Windows RAID 5 Write and Read File Copy charts shown below, filtered to show only five-bay products. Since the only other Intel D2700-powered NAS, Thecus' N4800 is only a four-bay NAS, it doesn't show in these charts.

Synology DS1512+ DiskStation RAID 5 File Copy Write comparison

Synology DS1512+ DiskStation RAID 5 File Copy Write comparison

Running unfiltered versions of the same benchmarks ranked the DS1512+ and N4800 at number 2 and 7, respectively, for write and number 2 and 11 for read.

Synology DS1512+ DiskStation RAID 5 File Copy Read comparison

Synology DS1512+ DiskStation RAID 5 File Copy Read comparison

Clicking through the various benchmarks looking at all RAID 5 capable products consistently showed the 1512+ ranking in the top 5 of each benchmark.

Use the NAS Charts to further explore and compare the DS1512+'s performance

Closing Thoughts

Five-bay NASes aren't that common and are designed primarily for folks who like a hot-swap spare for four-drive RAID 5 volumes. Among the five products we've tested, the DS1512+ is priced right up with similar QNAP products like the TS-559 Pro II at around $800, but which aren't expandable.

If you don't need the hot-spare or expandability, you can save yourself $150 - $200 and opt for the four-bay D2700 Atom powered Thecus N4800 or D525 Atom based QNAP TS-459 Pro +.

More NAS

Wi-Fi System Tools
Check out our Wi-Fi System Charts, Ranker and Finder!

Support Us!

If you like what we do and want to thank us, just buy something on Amazon. We'll get a small commission on anything you buy. Thanks!

Over In The Forums

Hi There,Update 2020/08/06386 rc2-3 firmware is in this link
I plan to make available a beta version of the next kamoj add-on - if there is enough interest.N.B: Voxel firmware is a pre-requisite, not an option!I...
I was doing some research and was seeing a lot about issues with the 2.4ghz band not working after a while or having very short range (or poor perform...
No matter what I put for upload/download bandwidth on a new RT-AX88U on Merlin 384.18, it will peg the upload speed at my ISP's maximum speed and ping...
Hi to all!I just installed Pyload and Transmission on my RT-AC86U. Now I have a problem. I have to set the router ( to go to Internet thro...

Don't Miss These

  • 1
  • 2
  • 3