DOC-5772 storage level metrics

_includes/v23.1/metric-names.md

@@ -258,6 +258,20 @@ Name | Description
 `sql.txn.contended.count` | Number of SQL transactions that experienced contention
 `sql.txn.rollback.count` | Number of SQL transaction ROLLBACK statements
 `sql.update.count` | Number of SQL UPDATE statements
+`storage.l0-level-score` | Compaction score of level 0
+`storage.l1-level-score` | Compaction score of level 1
+`storage.l2-level-score` | Compaction score of level 2
+`storage.l3-level-score` | Compaction score of level 3
+`storage.l4-level-score` | Compaction score of level 4
+`storage.l5-level-score` | Compaction score of level 5
+`storage.l6-level-score` | Compaction score of level 6
+`storage.l0-level-size` | Size of the SSTables in level 0
+`storage.l1-level-size` | Size of the SSTables in level 1
+`storage.l2-level-size` | Size of the SSTables in level 2
+`storage.l3-level-size` | Size of the SSTables in level 3
+`storage.l4-level-size` | Size of the SSTables in level 4
+`storage.l5-level-size` | Size of the SSTables in level 5
+`storage.l6-level-size` | Size of the SSTables in level 6
 `storage.keys.range-key-set.count` | Approximate count of RangeKeySet internal keys across the storage engine.
 `storage.marked-for-compaction-files` | Count of SSTables marked for compaction
 `sys.cgo.allocbytes` | Current bytes of memory allocated by cgo