Octal
 Block Number       Contents
+-------------+
|      0      |     Reserved
+-------------+
|      1      |     Home Block (Reserved)
+-------------+
|      2      |     Reserved
+-------------+
|      3      |     Reserved
+-------------+
|      4      |     Reserved
+-------------+
|      5      |     Reserved
+-------------+
|      6      |<-+  Directory Segment 1
+-------------+ /
|      7      |<
+-------------+
|     10      |<-+  Directory Segment 2
+-------------+ /
|     11      |<
+-------------+
|      .      |
|      .      |
|      .      |
+-------------+
|      x      |<-+  Directory Segment n
+-------------+ /
|     x+1     |<
+-------------+
|    Files    |     Stored Data
|             |
|             |
|             |
|             |
|             |
.             .
.             .
.             .
+-------------+     End of Volume