unzip f3-x.x.zip
make
make install

f3write [OPTION...] <PATH>

f3read [OPTION...] <PATH>

Usage: f3write [OPTION...] <PATH>
F3 Write -- fill a drive out with .h2w files to test its real capacity

  -e, --end-at=NUM           Last NUM.h2w file to be written
  -p, --show-progress=NUM    Show progress if NUM is not zero
  -s, --start-at=NUM         First NUM.h2w file to be written
  -w, --max-write-rate=KB/s  Maximum write rate
  -?, --help                 Give this help list
      --usage                Give a short usage message
  -V, --version              Print program version

Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.

Usage: f3read [OPTION...] <PATH>
F3 Read -- validate .h2w files to test the real capacity of the drive

  -e, --end-at=NUM           Last NUM.h2w file to be read
  -p, --show-progress=NUM    Show progress if NUM is not zero
  -s, --start-at=NUM         First NUM.h2w file to be read
  -?, --help                 Give this help list
      --usage                Give a short usage message
  -V, --version              Print program version

Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.

f3write /media/b/1GB-USB

F3 write 7.2
Copyright (C) 2010 Digirati Internet LTDA.
This is free software; see the source for copying conditions.

Free space: 948.76 MB
Creating file 1.h2w ... OK!
Free space: 0.00 Byte
Average writing speed: 15.97 MB/s

f3read /media/b/1GB-USB

F3 read 7.2
Copyright (C) 2010 Digirati Internet LTDA.
This is free software; see the source for copying conditions.

                  SECTORS      ok/corrupted/changed/overwritten
Validating file 1.h2w ... 1942960/        0/      0/      0

  Data OK: 948.71 MB (1942960 sectors)
Data LOST: 0.00 Byte (0 sectors)
         Corrupted: 0.00 Byte (0 sectors)
  Slightly changed: 0.00 Byte (0 sectors)
       Overwritten: 0.00 Byte (0 sectors)
Average reading speed: 835.91 MB/s

$ f3write -e 3 /media/b/DISK

F3 write 7.2
Copyright (C) 2010 Digirati Internet LTDA.
This is free software; see the source for copying conditions.

Removing old file 1.h2w ...
Removing old file 2.h2w ...
Removing old file 3.h2w ...
Free space: 433.51 GB
Creating file 1.h2w ... OK!
Creating file 2.h2w ... OK!
Creating file 3.h2w ... OK!
Free space: 430.51 GB
Average writing speed: 60.21 MB/s

$ f3read -e 3 /media/b/DISK

F3 read 7.2
Copyright (C) 2010 Digirati Internet LTDA.
This is free software; see the source for copying conditions.

                  SECTORS      ok/corrupted/changed/overwritten
Validating file 1.h2w ... 2097152/        0/      0/      0
Validating file 2.h2w ... 2097152/        0/      0/      0
Validating file 3.h2w ... 2097152/        0/      0/      0

  Data OK: 3.00 GB (6291456 sectors)
Data LOST: 0.00 Byte (0 sectors)
         Corrupted: 0.00 Byte (0 sectors)
  Slightly changed: 0.00 Byte (0 sectors)
       Overwritten: 0.00 Byte (0 sectors)
Average reading speed: 1.09 GB/s