diff --git a/docs/storage.md b/docs/storage.md
index 7b6e3bffe8..de8a8ed065 100644
--- a/docs/storage.md
+++ b/docs/storage.md
@@ -11,13 +11,13 @@ Prometheus's local time series database stores data in a custom, highly efficien
 
 ### On-disk layout
 
-Ingested samples are grouped into blocks of two hours. Each two-hour block consists
-of a directory containing a chunks subdirectory containing all the time series samples
-for that window of time, a metadata file, and an index file (which indexes metric names
-and labels to time series in the chunks directory). The samples in the chunks directory
-are grouped together into one or more segment files of up to 512MB each by default. When
-series are deleted via the API, deletion records are stored in separate tombstone files
-(instead of deleting the data immediately from the chunk segments).
+Ingested samples are grouped into two-hour blocks. Each block consists of a directory that 
+contains a chunks subdirectory with all the time series samples for that time window, 
+a metadata file,  and an index file (which maps metric names and labels to the time series 
+in the chunks directory). By default, the samples in the chunks directory are organized 
+into one or more segment files, each up to 512 MB. When series are deleted via the API, 
+deletion records are stored in separate  tombstone files rather than being immediately 
+removed from the chunk segments.
 
 The current block for incoming samples is kept in memory and is not fully
 persisted. It is secured against crashes by a write-ahead log (WAL) that can be