add comments

2012-09-08 00:05:58 -07:00
parent a7d8d46306
commit 9bde067f16
1 changed files with 1 additions and 1 deletions
--- a/weed-fs/src/pkg/storage/volume.go
+++ b/weed-fs/src/pkg/storage/volume.go
@@ -53,7 +53,7 @@ func (v *Volume) maybeWriteSuperBlock() {
 	stat, _ := v.dataFile.Stat()
 	if stat.Size() == 0 {
 		header := make([]byte, SuperBlockSize)
-		header[0] = 1
+		header[0] = 1 //number of copies
 		v.dataFile.Write(header)
 	}
 }