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diff --git a/src/ceph/src/test/test_split.sh b/src/ceph/src/test/test_split.sh
new file mode 100755
index 0000000..4fdedd5
--- /dev/null
+++ b/src/ceph/src/test/test_split.sh
@@ -0,0 +1,67 @@
+#!/bin/bash -x
+
+#
+# Add some objects to the data PGs, and then test splitting those PGs
+#
+
+# Includes
+source "`dirname $0`/test_common.sh"
+
+TEST_POOL=rbd
+
+# Constants
+my_write_objects() {
+        write_objects $1 $2 10 1000000 $TEST_POOL
+}
+
+setup() {
+        export CEPH_NUM_OSD=$1
+
+        # Start ceph
+        ./stop.sh
+
+        ./vstart.sh -d -n
+}
+
+get_pgp_num() {
+        ./ceph -c ./ceph.conf osd pool get $TEST_POOL pgp_num > $TEMPDIR/pgp_num
+        [ $? -eq 0 ] || die "failed to get pgp_num"
+        PGP_NUM=`grep PGP_NUM $TEMPDIR/pgp_num | sed 's/.*PGP_NUM:\([ 0123456789]*\).*$/\1/'`
+}
+
+split1_impl() {
+        # Write lots and lots of objects
+        my_write_objects 1 2
+
+        get_pgp_num
+        echo "\$PGP_NUM=$PGP_NUM"
+
+        # Double the number of PGs
+        PGP_NUM=$((PGP_NUM*2))
+        echo "doubling PGP_NUM to $PGP_NUM..."
+        ./ceph -c ./ceph.conf osd pool set $TEST_POOL pgp_num $PGP_NUM
+
+        sleep 30
+
+        # success
+        return 0
+}
+
+split1() {
+        setup 2
+        split1_impl
+}
+
+many_pools() {
+        setup 3
+        for i in `seq 1 3000`; do
+                ./rados -c ./ceph.conf mkpool "pool${i}" || die "mkpool failed"
+        done
+        my_write_objects 1 10
+}
+
+run() {
+        split1 || die "test failed"
+}
+
+$@