diff --git a/docs.it4i/general/slurm-job-submission-and-execution.md b/docs.it4i/general/slurm-job-submission-and-execution.md
index 6d468c14516b846727ffce8a13c4370e7ef4ef0d..68f219bc715e49f3cf4e37687ba87dd4316fc23c 100644
--- a/docs.it4i/general/slurm-job-submission-and-execution.md
+++ b/docs.it4i/general/slurm-job-submission-and-execution.md
@@ -1,5 +1,10 @@
 # Job Submission and Execution
 
+!!! warning
+    Don't use the `#SBATCH -- exclusive` parameter as it is already included in the SLURM configuration.<br><br>
+    Use the '#SBATCH --mem=' parameter **on 'qfat' only**. On `cpu_` queues, whole nodes are allocated.
+    Accelerated nodes (`gpu_` queues) are divided each into eigtht parts with corresponding memory.
+
 ## Introduction
 
 [Slurm][1] workload manager is used to allocate and access Karolina's, Barbora's and Complementary systems' resources.