-hard disks with a lot of changing metadata. For example workloads that involve
-creating or deleting a large number of files will benefit from the presence of
-a `special` device. ZFS datasets can be configured to store whole small files
-on the `special` device which can further improve the performance. Use SSDs for
-the `special` device.
+hard disks with a lot of metadata changes. For example workloads that involve
+creating, updating or deleting a large number of files will benefit from the
+presence of a `special` device. ZFS datasets can also be configured to store
+whole small files on the `special` device which can further improve the
+performance. Use fast SSDs for the `special` device.