1.5GB/min is 1536MB/min and 25.6MB/s. The bus is 100/133/150/300 MB/s
depending on DMA mode.
2.2GB/min is 2253MB/min and 57.5MB/s. ditto
Odds are the 25.6MB/s is throttled due to writes on the destination,
not reads from the source. 100Mb/s ethernet is ~12.5MB/s. Ghost uses
compression so it can write more than 12.5MB/s by compressing the data
before writing. It's very good at compression. I see well over
12.5MB/s on 100Mb ethernet on my LAN.
But you are going 100 to 133. So you're using 57.5MB read on one bus,
and probably less than this on the write bus due to compression. My
drives read benchmark at 59MB/s. Write is lower.
If you were to turn compression off, I bet you'd see GHOST drop from
57.5MB/s to around 25-30MB/s which is probably close to where your
drive would benchmark on writes.
