diff --git a/Cache-Remote-Storage.md b/Cache-Remote-Storage.md
index 57aa104..c5a4184 100644
--- a/Cache-Remote-Storage.md
+++ b/Cache-Remote-Storage.md
@@ -1,6 +1,6 @@
 After [[Mount Remote Storage]], you can already read or write files in the mounted directory.
 
-However, sometimes you want to have a command to cache file content directly, instead of find the file, trigger one read in order to cache the file content.
+However, sometimes you want to have a command to warm up the file content directly, instead of lazy cache.
 
 And sometimes you may want to reduce local storage usage, to `uncache` the file content.
 
@@ -17,14 +17,30 @@ In `weed shell`, checkout `remote.cache` and `remote.uncache`:
 	remote.mount -dir=xxx -remote=s3_1/bucket
 
 	# after mount, run one of these command to cache the content of the files
-	remote.cache -dir=xxx
-	remote.cache -dir=xxx/some/sub/dir
+	remote.cache -dir=/xxx
+	remote.cache -dir=/xxx/some/sub/dir
+	remote.cache -dir=/xxx/some/sub/dir -include=*.pdf
+	remote.cache -dir=/xxx/some/sub/dir -exclude=*.txt
+	remote.cache -maxSize=1024000    # cache files smaller than 100K
+	remote.cache -maxAge=3600        # cache files less than 1 hour old
+
+	This is designed to run regularly. So you can add it to some cronjob.
+	If a file is already synchronized with the remote copy, the file will be skipped to avoid unnecessary copy.
+
+	The actual data copying goes through volume severs in parallel.
 
 > help remote.uncache
   remote.uncache	# keep the metadata but remote cache the file content for mounted directories or files
 
-	remote.uncache -dir=xxx
-	remote.uncache -dir=xxx/some/sub/dir
+	This is designed to run regularly. So you can add it to some cronjob.
+	If a file is not synchronized with the remote copy, the file will be skipped to avoid loss of data.
+
+	remote.uncache -dir=/xxx
+	remote.uncache -dir=/xxx/some/sub/dir
+	remote.uncache -dir=/xxx/some/sub/dir -include=*.pdf
+	remote.uncache -dir=/xxx/some/sub/dir -exclude=*.txt
+	remote.uncache -minSize=1024000    # uncache files larger than 100K
+	remote.uncache -minAge=3600        # uncache files older than 1 hour
 
 ```