diff --git a/docs.it4i/storage/project-storage.md b/docs.it4i/storage/project-storage.md
index f97106f730ce10a161f9e82b1841dfc025f034ea..940974da0dc4a856c40937a241515b4e4911701f 100644
--- a/docs.it4i/storage/project-storage.md
+++ b/docs.it4i/storage/project-storage.md
@@ -2,7 +2,10 @@
 
 The PROJECT data storage is a central storage for projects' and users' data on IT4Innovations.
 The PROJECT data storage is accessible from all IT4Innovations clusters and allows to share data across clusters.
-The storage is intended to be used throughout the whole project's lifecycle.
+The storage is intended to be used throughout the whole project's lifecycle. 
+
+PROJECT data storage is not designed for computational tasks and must not be used directly for such purposes.
+Please ensure that all files are copied to SCRATCH from the login nodes before submitting your job.
 
 ## Technical Overview