Clusters are identified by a five-digit alphanumeric id (numbers and lowercase letters). There are 36 ^5^ = 60466176 possible cluster identifiers.
-* For automated tests purposes, use "z****"
+* For automated test purposes, use "z****"
* For experimental/local-only/private clusters that won't ever be visible on the public Internet, use "x****"
-* For long-lived clusters, we recommend reserving a cluster id. Contact "info@curii.com":mailto:info@curii.com
+* For long-lived clusters, we recommend reserving a cluster id. Contact "info@curii.com":mailto:info@curii.com for more information.
Cluster identifiers are mapped API server hosts one of two ways:
h2(#clusterid). Arvados Cluster ID
-Each Arvados installation should have a cluster identifier, which is a unique 5-character lowercase alphanumeric string. Here is one way to make a random 5-character string:
+Each Arvados installation is identified by a cluster identifier, which is a unique 5-character lowercase alphanumeric string. There are 36 5 = 60466176 possible cluster identifiers.
+
+* For automated test purposes, use “z****”
+* For experimental/local-only/private clusters that won’t ever be visible on the public Internet, use “x****”
+* For long-lived clusters, we recommend reserving a cluster id. Contact "info@curii.com":mailto:info@curii.com for more information.
+
+Here is one way to make a random 5-character string:
<notextile>
<pre><code>~$ <span class="userinput">tr -dc 0-9a-z </dev/urandom | head -c5; echo</span>