website: Multiple warnings about single server deployment

website/source/docs/guides/bootstrapping.html.markdown

@@ -22,6 +22,7 @@ the following will be logged:
 
 Once `Node A` is running, we can start the next set of servers. There is a [deployment table](/docs/internals/consensus.html#toc_3)
 that covers various options, but it is recommended to have 3 or 5 total servers per data center.
+A single server deployment is _**highly**_ discouraged as data loss is inevitable in a failure scenario.
 We start the next servers **without** specifying `-bootstrap`. This is critical, since only one server
 should ever be running in bootstrap mode*. Once `Node B` and `Node C` are started, you should see a
 message to the effect of:

website/source/docs/internals/consensus.html.markdown

@@ -136,7 +136,8 @@ transactions and higher availability without sacrificing consistency.
 
 Below is a table that shows for the number of servers how large the
 quorum is, as well as how many node failures can be tolerated. The
-recommended deployment is either 3 or 5 servers.
+recommended deployment is either 3 or 5 servers. A single server deployment
+is _**highly**_ discouraged as data loss is inevitable in a failure scenario.
 
 <table class="table table-bordered table-striped">
 <tr>

website/source/intro/getting-started/agent.html.markdown

@@ -8,8 +8,9 @@ sidebar_current: "gettingstarted-agent"
 
 After Consul is installed, the agent must be run. The agent can either run
 in a server or client mode. Each datacenter must at least one server, and
-a recommended 3 or 5. [This guide](/docs/guides/bootstrapping.html) covers
-bootstrapping a new datacenter. All other agents run in client mode, which
+a recommended 3 or 5. A single server deployment is _**highly**_ discouraged
+as data loss is inevitable in a failure scenario. [This guide](/docs/guides/bootstrapping.html)
+covers bootstrapping a new datacenter. All other agents run in client mode, which
 is a very lightweight process that registers services, runs health checks,
 and forwards queries to servers. The agent must be run for every node that
 will be part of the cluster.