Add serial number support for USB devices for USB
to IDE/SATA adapters. Note this will only work
with USB IDE/SATA adapters that support ATA pass
through. See #149 for further details of
supported devices.
This patch requires readlink and smartmontools (smartctl)
to be installed. If not installed the serial number for
supported USB hardware will be missing.
The device type, i.e USB or ATA is now shown on the selection
and wipe windows.
Fix throughput so it shows the average throughput
calculated from the start of the wipe.
Because we currently use cached access to the disks
initially for a few seconds or minute the throughput looks high
as nwipes writes are cached in memory before being written to disc.
When we change to a non cached or nwipe buffered model the
throughput will reflect a throughput that is actual
disc throughput.
Using an averaged throughput means that when the wipe finishes it will show
a higher value than the previous calculation but this new calculation is the
actual averaged speed of the wipe and reflects a value that is closer to what
you would expect a given drive to exhibit.
For instance a 160GB WD1600AAJS using Dod-S, B+VL, using the old
calculation would finish with a throughput of 48MB/s, using the
new calculation it finishes with a throughput of 76MB/s. This was tested
over multiple wipes and multiple rounds and gave consistently similiar
results.
Throughput is not so accurate on small loop drives due to the fact the drive
is so small it fits within CPU memory so when reading back to verify your're
actually reading back from cache not the disk. Another reason I want to move
to non cached I/O and have nwipe manage buffering and size of block writes.
Add a summary table to the log that shows each drives status
i.e. erased or failed, throughput, duration of wipe, model,
serial no etc. In particular it benefits those that wipe many
drives simultaneously in rack servers. At a glance any failed
drives can be seen without having to browse back through the
log. Especially useful in --nogui mode, but also useful in GUI
mode.
Add a spinner to the GUI for each drive being wiped.
When nwipe is syncing the percentage completion pauses,
having a spinner gives a clear indication that the wipe
is still running. Each devices spinner disappears on completion
of a given devices wipe.
Add verbose option -v, --verbose
Only display thread cancellation info messages, excluding error
messages, only when verbose option is selected.
This helps to keep the log a bit cleaner especially when wiping many
drives simultaneously.
Moved most of the documentation from `README` to
`README.md`, and added MarkDown formatting when
required. Also move the release notes to a
`CHANGELOG.md`, and made sure the formatting
was consistent.
