[Bugs] [Bug 1732774] Disperse volume : data corruption with ftruncate data in 4+2 config

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1732774

Pranith Kumar K <pkarampu at redhat.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Doc Type|If docs needed, set a value |Bug Fix


--- Doc Text *updated* ---
Cause: 
Unaligned ftruncate on the file which is undergoing heal could read from bricks with bad data leading to corruption of that block.
Consequence: 
Data of the file will be corrupted.
Fix: 
Prevent the read to happen on bricks with bad data at all times.
Result: 
Data of the file won't be corrupted.


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