SeleniumHQ
diff --git a/‎java/server/src/org/openqa/selenium/grid/commands/InfoCommand.java‎
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diff --git a/‎java/server/src/org/openqa/selenium/grid/commands/info.txt‎
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diff --git a/‎java/server/src/org/openqa/selenium/grid/commands/sessionmaps.txt‎
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@@ -100,6 +100,11 @@ public Executable configure(PrintStream out, PrintStream err, String... args) {
           toDisplay = "tracing.txt";
           break;
 
+        case "sessionmap":
+          title = "About SessionMaps";
+          toDisplay = "sessionmaps.txt";
+          break;
+
         case "help":
         case "info":
         default:
 
@@ -4,6 +4,7 @@ the "info" command followed by:
 * config - Help on how to configure Selenium
 * tracing - Help on how distributed tracing works with selenium
 * security - Help on how how to secure communications to and within selenium
+* sessionmap - Help on different types of sessionmap and how to start them.
 
 Each topic will give you enough information to help you get started, and
 contains some pointers on our site to provide more complete information.
@@ -0,0 +1,27 @@
+Selenium 4 Grid ships with SessionMap.
+
+A SessionMap is a store of session id and it's capabilities.
+It is a key value store. Now, how that data is stored differs
+on the implementation used. As of Selenium 4, we offer the
+following types of data store.
+
+1. RedisBackedSessionMap
+========================
+
+`RedisBackedSessionMap` uses Redis as datastore for key, value store.
+Below are the steps to start a `RedisBackedSessionMap`.
+
+1. Set an environment variable using `export SESSIONS_IMPLEMENTATION='org.openqa.selenium.grid.sessionmap.redis.RedisBackedSessionMap'`
+2. Set scheme to redis using `export SESSIONS_SCHEME="redis"`
+3. Download the redis-session-map jar from MVN respository.
+4. Start the RedisBackedSessionMap using the command
+`java -jar <path/to/grid/jar> --ext $(coursier fetch -p io.lettuce:lettuce-core:<latest release>): path/to/redis-session-map.jar sessions --sessions-host "<redis_host>" --sessions-port <redis_port>`
+
+After the sessionmap server successfully starts, you should see some log lines as below:
+```
+15:22:54.247 INFO [LoggingOptions.getTracer] - Using OpenTelemetry for tracing
+15:22:54.249 INFO [LoggingOptions.createTracer] - Using OpenTelemetry for tracing
+15:22:54.827 INFO [EpollProvider.<clinit>] - Starting without optional epoll library
+15:22:55.136 INFO [KqueueProvider.<clinit>] - Starting with kqueue library
+15:22:55.328 INFO [SessionMapServer.execute] - Started Selenium session map 4.0.0-alpha-7 (revision a5536dfb7b*): http://192.168.0.5:5556
+```