Performance tests were run using our Revision 5 NAS test process on four-drive unencrypted RAID 0, 5 and 10 volumes using Seagate NAS HDD 4 TB (ST4000VN000) drives with a 1 Gbps LAN connection. The firmware installed was 188.8.131.52 which was auto updated on the first boot.
Since all of the products in the NAS Pro family use the same processor, RAM and Ethernet components, testing for all models was performed on the NAS Pro 6-bay sample. The results for the NAS Pro 4-bay used four drives configured in single RAID 0, 5 and 10 Volumes. The NAS Pro 2-bay tests used two drives in single RAID 0 and RAID 1 volumes. For the purposes of the charts, the NAS Pro 4-bay test results were copied into the benchmark tables for the NAS Pro 6-bay results.
The Benchmark Summary for the Seagate NAS Pro 4-bay NAS shows relatively consistent Windows File Copy read and write results for all RAID levels tested (RAID 0, 5, and 10). For each RAID level, file copy write performance just slightly edged out file copy read performance with the exception of RAID 10. While the RAID 10 File copy write performance was in line with other RAID level write performance at about 109 MBps, RAID 10 File copy read performance lagged behind at 94.6 MBps.
NASPT file copy to NAS (Write) and file copy from NAS (Read) showed similar results with write performance outpacing read performance for each RAID level. The best NASPT write performance was 117.6 MBps for RAID 0 followed by RAID 5 at 114.0 MBps and RAID 10 at 109.6 MBps. There was more of a spread on the NASPT read performance with RAID 0 achieving 103.8 MBps, RAID 5 at 97.8 MBps. The poorest read performance was for RAID 10 at 76.7 MBps.
Seagate NAS Pro 4-bay (and 6-bay) Benchmark Summary
For the NAS Pro 2-bay tests, Windows File Copy write and read were similar to the 4-bay results. For RAID 0, write outperformed read 107.1, MBps vs. 100.4 MBps. Similarly, RAID 1 results favored write (106.6 MBps) or read (94.1 MBps). As with the RAID 10 results for the 4-bay NASPT file copy to NAS (Write) and file copy from NAS (Read) rests, write outperformed read by a wider margin.
For RAID 0
- NASPT File copy to NAS: 109.2 MBps
- NASPT File copy from NAS: 78.4 MBps
For RAID 1, the imbalance between write and read was even larger.
- NASPT File copy to NAS: 114.3 MBps
- NASPT File copy from NAS: 62.2 MBps
Seagate NAS Pro 2-bay Benchmark Summary
Attached backup tests with 4 drives and with 2 drives yielded different, but similar results. For all tests except for USB FAT tests, the 4 drive configuration outperformed the 2 drive configuration . For both configurations, of course, there was a clear performance boost using USB 3.0 versus USB 2.0. Table 3 summarizes attached backup results:
|Benchmark||NAS Pro 2-bay||NAS Pro 4-bay|
|Backup to USB Drive - FAT||35.2||34.6|
|Backup to USB Drive - NTFS||28.4||31.0|
|Backup to USB3 Drive - FAT||70.9||74.4|
|Backup to USB3 Drive - NTFS||67.6||77.0|
Table 3: Attached backup throughput (MB/s)
I should note that we had to use a WD Passport USB 3.0 drive for the attached backup tests. Despite multiple attempts, the NAS Pro would not complete a backup to our standard USB test drive consisting of a Startech USB 3.0 eSATA to SATA Hard Drive Docking Station (SATDOCKU3SEF) containing a WD Velociraptor WD3000HLFS 300 GB drive. The drive would mount fine, but would fail at the start of each backup before any files were copied.
With iSCSI write speeds of 73.8 MBps (2 drive) and 71.6 MBps (4 drive), the Seagate NAS Pro NASes rank about in the middle of iSCSI write performance which ranges from 26.1 MBps (QNAP Turbo NAS TS-412) to 107.0 MBps (ASUSTOR NAS Server AS7004T).
With even faster iSCSI read speeds of 84.5 MBps (2-drive) and 94.1 MBps (4-drive), the NAS Pro NASes moved up higher the comparative charts. The fastest iSCSI read times were turned in by the ASUSTOR AS7004T at 101.3MBps, and the slowest read times were for the QNAP Turbo NAS (TS-220) at 35.6 MBps.