/dev/sdf: multcount = 0 (off) readonly = 0 (off) readahead = 256 (on) geometry = 22888448/64/32, sectors = 46875541504, start = 0
/dev/sdf: Timing cached reads: 26160 MB in 1.98 seconds = 13186.28 MB/sec Timing buffered disk reads: 692 MB in 3.01 seconds = 229.88 MB/sec
hdparm -v /dev/sdg`
/dev/sdg: multcount = 0 (off) readonly = 0 (off) readahead = 131064 (on) geometry = 3815447/64/32, sectors = 7814037168, start = 0
/dev/sdg: Timing cached reads: 28898 MB in 1.98 seconds = 14579.61 MB/sec Timing buffered disk reads: 2482 MB in 3.04 seconds = 816.41 MB/sec
`
/dev/sdb2: multcount = 0 (off) readonly = 0 (off) readahead = 256 (on) geometry = 3815085/64/32, sectors = 7813296094, start = 409634 `
/dev/sdb2: Timing cached reads: 26450 MB in 1.98 seconds = 13330.89 MB/sec Timing buffered disk reads: 32 MB in 3.31 seconds = 9.66 MB/sec