diff --git a/weed-shell.md b/weed-shell.md
index bb6b50f..1390774 100644
--- a/weed-shell.md
+++ b/weed-shell.md
@@ -106,6 +106,40 @@ no under replicated volumes
 
 ```
 
+# Check and Fix chunks replication
+if use see in logs:
+```
+I0212 22:22:56.666094 filechunk_manifest.go:197 read http://fast-volume-1:8080/2480,09a6290e6159aedd failed, err: http://fast-volume-1:8080/2480,09a6290e6159aedd?readDeleted=true: 404 Not Found
+```
+1. volume.check.disk
+```
+> lock; volume.check.disk -v -force -slow -volumeId 2480 -nonRepairThreshold 1 -syncDeleted
+load collection logs-data volume 2480 index size 2621232 from fast-volume-3:8080 ...
+load collection logs-data volume 2480 index size 2621232 from fast-volume-1:8080 ...
+volume 2480 fast-volume-1:8080 has 163827 entries, fast-volume-3:8080 missed 0 and partially deleted 0 entries
+volume 2480 fast-volume-3:8080 has 163827 entries, fast-volume-1:8080 missed 0 and partially deleted 0 entries
+```
+2. volume.fsck
+Search for files that are in the filler, but there are no chunks on the volume servers
+```
+lock;volume.fsck -findMissingChunksInFiler -verifyNeedles -collection logs-data -volumeId 2480 -v
+checking directory /buckets/logs-data/2023-02-13
+total 128 directories, 5148091 files
+find missing file chunks in dataNodeId fast-volume-1:8080 volume 2480 ...
+/buckets/logs-data/2022-10-10/39228128_2022-10-10.log
+find missing file chunks in dataNodeId fast-volume-3:8080 volume 2480 ...
+/buckets/logs-data/2022-10-10/39228128_2022-10-10.log
+```
+
+3. fs.verify
+Check the status of all chunks uploaded in the last hour:
+```
+fs.verify -v -modifyTimeAgo 1h
+...
+total 807944 directories, 121461080 files
+verified 53218 files, error 0 files 
+```
+
 # One more trick
 You can skip the "fs." prefix, for all "fs.*" commands:
 ```