diff --git a/wally/suits/io/rrd.cfg b/wally/suits/io/rrd.cfg
index 3f4c074..89833b9 100644
--- a/wally/suits/io/rrd.cfg
+++ b/wally/suits/io/rrd.cfg
@@ -8,6 +8,9 @@
 filename={FILENAME}
 NUM_ROUNDS=35
 
+# this is critical for correct results in multy-node run
+randrepeat=0
+
 size=30G
 ramp_time=15
 runtime=60