Chris Krelle 370fea3c11 Make DD block size adjustable
Currently the block size for DD operations is hard coded to 1 meg.
In some enviroments, like where nodes block storage is SAN or NAS based
this may be causing sub par performance, This patch makes the block
size for DD operations adjustable via a conf file option.

Closes-bug: #1411002
Change-Id: I49bf538988ba2fa40047d4ffeffb416ba232e3f2
2015-01-14 14:26:07 -08:00
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2015-01-14 14:26:07 -08:00