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Performance
It's kind of difficult to test the speed of the HD in the SnapServer as the interface towards it is not your traditional Parallel or Serial ATA interface, nope .. it utilizes your Ethernet capacity. We are looking at 100Mbit/sec here which has a theorethical 12.5 MB per second on bandwidth. Windows utilizes roughly 20% of that available bandwidth then there's other traffic LAN to take notice off. We have a nice 24 port switch that is rather efficient so we figured the best way to measure write performance on the SnapServer is utilizing FTP. We'll simply upload 5x50MB files to see the write speed. Let's have a look and startup an FTP client:
Writing data towards the HDD227 Entering Passive Mode (192,168,168,106,4,54).
Opening data connection IP: 192,168,168,106,4,54 PORT: 1078.
LIST -aL
450 Requested file action not taken. Inexistent file or no access rights.
Whoops ! The FTP server does not like the LIST -aL command. Be sure to disable it in your FTP client ! Let's try again:
STATUS:> Sending abcde.r04
125 Data connection already open; transfer starting.
STATUS:> Send successful
STATUS:> Time: 0:00:08, Efficiency: 6103.52 KBytes/s (6250000 bytes/s)
STATUS:> Time: 0:00:08, Efficiency: 6103.52 KBytes/s (6250000 bytes/s)
STATUS:> Time: 0:00:08, Efficiency: 6103.52 KBytes/s (6250000 bytes/s)
STATUS:> Time: 0:00:08, Efficiency: 6103.52 KBytes/s (6250000 bytes/s)
STATUS:> Time: 0:00:08, Efficiency: 6103.52 KBytes/s (6250000 bytes/s)
226 Closing data connection. Requested file action successful.
There we go, roughly 6 MB/sec which surely is a nice and sufficient enough number.
Reading data from the HDD
We of course did the same test from snapserver towards a RAMDRIVE on the PC which indicates HD read speed:
Received 50000000 bytes Ok.
STATUS:> Time: 0:00:05, Efficiency: 9765.63 KBytes/s (10000000 bytes/s)
That's almost 10MB/sec which is absolutely the most you'll get out of your average 100 Mbit/sec Ethernet connection towards Windows XP. So the SnapServer is one fast piece of machinery BUT it doesn't react well towards NTFS as performance goes down hard when you copy from an NTSF formatted HD towards the SnapServer. FAT32 however is blazingly fast. When we startup the synthetic Sandra test software we see similar network results yet what you see here is Network Bandwidth, not HD write speed.
SiSoftware Sandra
Host: GURU3D-TESTLAB
Name : SNAP190637
Benchmark Breakdown
Average Latency : 312µs
Min/Max Latency : 250 / 493µs
Speed : 8004kB/s
