Bi-directional transfer consequences:
- With FICON, up to twice the single-fiber data rate
- You get single-fiber rate at 1:0 and 0:1 read/write ratio (all reads or all writes)
- You get twice the single-fiber rate at 1:1 read/write
- 75 MB/s <= FICON rate per channel <= 150 MB/s (standard)
- 150 MB/s <= FICON rate per channel <= 300 MB/s (express)
- Two channel path busy measurements, one for read, one for write