O'Reilly Edit: Changes to the Storage Chapter

This patch addresses the comments made during the latest round of edits
from O'Reilly.

Change-Id: I7deaceacd319775c9960377074728538aa0b0314
Addresses some O'Reilly edits for Example Architectures

- Does not add a Detailed Description section to the first
arch, as the request is for hardware suggestions and details on the
high availability information for Pacemaker and the like, which are
not present in the first arch. Would like reviewers to add or weigh
in with suggestions.

Change-Id: Ica3f19485a74af9359a7057e57df58c33c0675b3
Merge "Addresses some O'Reilly edits for Example Architectures"
Merge "O'Reilly Edit: Changes to the Storage Chapter"