X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/7df49ca80b5ed10c9efc644de5b07ff3eb1829c8..165f300730a1c69b71a0b4008191baeed074f606:/doc/install/install-manual-prerequisites.html.textile.liquid diff --git a/doc/install/install-manual-prerequisites.html.textile.liquid b/doc/install/install-manual-prerequisites.html.textile.liquid index 8f45b29a4f..364e8cd2bb 100644 --- a/doc/install/install-manual-prerequisites.html.textile.liquid +++ b/doc/install/install-manual-prerequisites.html.textile.liquid @@ -119,7 +119,13 @@ For a small demo installation, it is possible to run all the Arvados services on 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: 
~$ tr -dc 0-9a-z </dev/urandom | head -c5; echo