The Engineering Department completed their performance comparison of the UG-206 and
UG-101. Here is the summary.
They ran his tests using two different sets of data, both 20GB in size. The
first set was 20 files of 1GB each. The second set was 20,000 files of
1MB each. As you have almost certainly observed, file transfer
performance in any setup drops dramatically when trying to copy
thousands of tiny files vs a few very large files. This captures the two
different scenarios.
The gateways being tested were a UG-101 with a standard 1TB HDD, and a UG-206 with a dual-1TB RAID Samsung SSD.
For the "large file" scenario:
- UG-101: Read 28 megabytes/second, write 31 megabytes/second
- UG-206: Read 108 megabytes/second, write 70 megabytes/second
Since
the absolute maximum transfer rate on Gigabit Ethernet is ~120
megabytes/second, the UG-206 read speed is almost at the limit. In any
case, the UG-206 is between 2x and 4x the speed of the UG-101.
For the "small file" scenario:
- UG-101: Read 15 megabytes/second, write 24.5 megabytes/second
- UG-206: Read 50.5 megabytes/second, write 37.2 megabytes/second
With
many small files, the overhead of file transactions is very high and
drops the transfer rate. However, even in this situation the UG-206 is
1.5X to 3X the speed of the UG-101.
I think it
is safe to say that the UG-206 represents a substantial increase in the
storage performance over the UG-101. This is also reflected in the
anecdotal reports from the field, where the customers report much higher
throughput. Not surprising since the UG-206 is a much more powerful
processor and disk subsystem vs the UG-101.