diff --git a/wally/suits/io/verify.cfg b/wally/suits/io/verify.cfg
index 4a66aac..58b8450 100644
--- a/wally/suits/io/verify.cfg
+++ b/wally/suits/io/verify.cfg
@@ -8,31 +8,21 @@
 filename={FILENAME}
 NUM_ROUNDS=1
 
-size=5G
+# this is critical for correct results in multy-node run
+randrepeat=0
+
+size=50G
 ramp_time=5
-runtime=360
+runtime=60
 
 # ---------------------------------------------------------------------
-# check different thread count, sync mode. (latency, iops) = func(th_count)
+[verify_{TEST_SUMM} * {NUM_ROUNDS}]
+blocksize=4k
+rw=randwrite
+direct=1
+
 # ---------------------------------------------------------------------
-[verify_{TEST_SUMM}]
-blocksize=4m
+[verify_{TEST_SUMM} * {NUM_ROUNDS}]
+blocksize=4k
 rw=randread
 direct=1
-numjobs=5
-
-# ---------------------------------------------------------------------
-# check different thread count, sync mode. (latency, iops) = func(th_count)
-# ---------------------------------------------------------------------
-# [verify_{TEST_SUMM}]
-# blocksize=4k
-# rw=randwrite
-# direct=1
-
-# ---------------------------------------------------------------------
-# direct write
-# ---------------------------------------------------------------------
-# [verify_{TEST_SUMM}]
-# blocksize=4k
-# rw=randread
-# direct=1