docs: update Tenstorrent SSH fleet requirements

Author: Andrey Cheptsov

mkdocs/docs/concepts/fleets.md

@@ -116,13 +116,15 @@ To create a fleet, define its configuration in a YAML file. The filename must en
 
         === "Tenstorrent"
             2. Hosts with Tenstorrent accelerators must be pre-installed with [Tenstorrent software](https://docs.tenstorrent.com/getting-started/README.html#software-installation).
-            This must include the drivers, `tt-smi`, and HugePages.
+            This must include the drivers and HugePages.
 
         3. The user specified must have passwordless `sudo` access.
 
         4. The SSH server must be running and configured with `AllowTcpForwarding yes` in `/etc/ssh/sshd_config`.
 
-        5. The firewall must allow SSH and should forbid any other connections from external networks. For `placement: cluster` fleets, it should also allow any communication between fleet nodes.
+        5. The firewall must allow SSH and should forbid any other connections from external networks.
+
+        6. If `placement` is set to `cluster`, hosts must be able to communicate with each other.
 
 > Once the fleet is created, you can run [dev environments](dev-environments.md), [tasks](tasks.md), and [services](services.md).
 

mkdocs/docs/examples/accelerators/tenstorrent.md

@@ -8,18 +8,14 @@ description: Running inference, training, and dev environments on Tenstorrent ac
 `dstack` supports running inference, training, and dev environments on
 Tenstorrent accelerators via SSH fleets.
 
-The examples below assume the Tenstorrent hosts are pre-installed with
-[Tenstorrent software](https://docs.tenstorrent.com/getting-started/README.html#software-installation),
-including the drivers, `tt-smi`, and HugePages.
-
 ## Fleets
 
 Currently, Tenstorrent accelerators are supported via
 [SSH fleets](../../concepts/fleets.md#ssh-fleets).
 
 === "SSH fleets"
 
-    Start by creating an SSH fleet for your Tenstorrent hosts.
+    To configure an SSH fleet, create a fleet configuration and list hostnames of the hosts along with the private key and username.
 
     <div editor-title="tt-fleet.dstack.yml">
 
@@ -36,6 +32,19 @@ Currently, Tenstorrent accelerators are supported via
 
     </div>
 
+    ??? info "Host requirements"
+        Before creating the fleet, make sure each host:
+
+        - Has Docker installed.
+        - Has [Tenstorrent software](https://docs.tenstorrent.com/getting-started/README.html#software-installation)
+          installed, including the drivers and HugePages.
+        - Can be accessed by the configured SSH user with passwordless `sudo`.
+        - Runs an SSH server with `AllowTcpForwarding yes`.
+        - Allows SSH through the firewall and should block other external
+          inbound traffic.
+
+        If `placement` is set to `cluster`, hosts can communicate with each other.
+
     To apply the fleet configuration, run:
 
     <div class="termy">