Update 0.FAQ.md (#1550)

docs-2.0/20.appendix/0.FAQ.md

@@ -360,9 +360,9 @@ Nebula Graph {{ nebula.release }} does not provide any commands or tools to supp
 
 3. Scale out graphd: Prepare the binary and config files of the graphd process in the new host. Modify the config files and add all existing addresses of the metad processes. Then start the new graphd process.
 
-4. Scale in storaged: (The number of replicas must be greater than 1) See [Balance remove command](../8.service-tuning/load-balance.md). After the command is finished, stop this storaged process.
+4. Scale in storaged: See [Balance remove command](../8.service-tuning/load-balance.md). After the command is finished, stop this storaged process.
 
-5. Scale out storaged: (The number of replicas must be greater than 1) Prepare the binary and config files of the storaged process in the new host, Modify the config files and add all existing addresses of the metad processes. Then register the storaged process to the metad, and then start the new storaged process. For details, see [Register storaged services](../2.quick-start/3.1add-storage-hosts.md).
+5. Scale out storaged: Prepare the binary and config files of the storaged process in the new host, Modify the config files and add all existing addresses of the metad processes. Then register the storaged process to the metad, and then start the new storaged process. For details, see [Register storaged services](../2.quick-start/3.1add-storage-hosts.md).
 
 You also need to run [Balance Data and Balance leader](../8.service-tuning/load-balance.md) after scaling in/out storaged.