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static/includes/clickhouse-storage-limitation.md

@@ -1,9 +1,28 @@
-:::note[Total storage per plan]
-In service plans with a single shard, storage capacity doesn't depend on the number of
-nodes, and the data of this single shard is replicated on all the available nodes.
-
-For example, with a Startup-16 plan you get 1150 GB of total storage per VM, same as with
-a Business-16 plan. Since the Business-16 plan offers three VMs, your total storage is
-3450 GB, but effectively it's still 1150 GB because that’s the maximum a single node can
-hold.
+:::note[Total storage with a plan]
+
+Total storage represents the maximum amount of data you can insert into a service, which
+doesn't depend on the number of nodes.
+
+The inserted data is replicated on all available nodes. How many times it's replicated
+depends on the number of nodes and the number of shards: the following number
+of times:
+
+$$
+number of data replication times = number of nodes / number of shards
+$$
+
+- Service plans with **one shard**
+
+  The data of a single shard is replicated on all available nodes.
+
+  For example, with the Startup-16 plan you get 1150 GB of total storage per VM, same as with
+  a Business-16 plan. Since the Business-16 plan offers three VMs, your total storage is
+  3450 GB, but effectively it's still 1150 GB because that’s the maximum a single node can
+  hold.
+
+- Service plans with **two shards**
+
+  For example, the Premium-6x-16 plan has two shards and six servers, each server with
+  1150 GB of storage. The data you insert is replicated three times.
+
 :::