diff --git a/wally/suits/io/ceph.cfg b/wally/suits/io/ceph.cfg
index 7a84872..9e98dd6 100644
--- a/wally/suits/io/ceph.cfg
+++ b/wally/suits/io/ceph.cfg
@@ -8,8 +8,7 @@
 filename={FILENAME}
 NUM_ROUNDS=7
 
-NUMJOBS_LARGE={% 1, 5, 10, 15, 20, 30, 40, 80, 120 %}
-NUMJOBS_NORM={% 1, 5, 10, 15, 20, 30, 40 %}
+NUMJOBS={% 1, 5, 10, 15, 20, 30, 40 %}
 NUMJOBS_SHORT={% 1, 5, 10 %}
 
 size=30G
@@ -23,7 +22,7 @@
 blocksize=4k
 rw=randwrite
 sync=1
-numjobs={NUMJOBS_NORM}
+numjobs={NUMJOBS}
 
 # ---------------------------------------------------------------------
 # direct write
@@ -42,23 +41,15 @@
 blocksize=4k
 rw=randread
 direct=1
-numjobs={NUMJOBS_NORM}
+numjobs={NUMJOBS}
 
 # ---------------------------------------------------------------------
-# this is essentially sequential read openration
-# we can't use seq read with numjobs > 1 on clouds due to caching
+# this is essentially sequential write/read operations
+# we can't use sequential with numjobs > 1 due to caching and block merging
 # ---------------------------------------------------------------------
 [ceph_test_{TEST_SUMM} * {NUM_ROUNDS}]
 blocksize=16m
-rw=randread
+rw={% randread, randwrite %}
 direct=1
 numjobs={NUMJOBS_SHORT}
 
-# ---------------------------------------------------------------------
-# sequential write
-# ---------------------------------------------------------------------
-[ceph_test_{TEST_SUMM} * {NUM_ROUNDS}]
-blocksize=1m
-rw=write
-direct=1
-numjobs={NUMJOBS_NORM}