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diff --git a/src/ceph/qa/standalone/mon/osd-pool-df.sh b/src/ceph/qa/standalone/mon/osd-pool-df.sh
new file mode 100755
index 0000000..3ed169d
--- /dev/null
+++ b/src/ceph/qa/standalone/mon/osd-pool-df.sh
@@ -0,0 +1,75 @@
+#!/usr/bin/env bash
+#
+# Copyright (C) 2017 Tencent <contact@tencent.com>
+#
+# Author: Chang Liu <liuchang0812@gmail.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Library Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Library Public License for more details.
+#
+source $CEPH_ROOT/qa/standalone/ceph-helpers.sh
+
+function run() {
+    local dir=$1
+    shift
+
+    export CEPH_MON="127.0.0.1:7113" # git grep '\<7113\>' : there must be only one
+    export CEPH_ARGS
+    CEPH_ARGS+="--fsid=$(uuidgen) --auth-supported=none "
+    CEPH_ARGS+="--mon-host=$CEPH_MON "
+
+    local funcs=${@:-$(set | sed -n -e 's/^\(TEST_[0-9a-z_]*\) .*/\1/p')}
+    for func in $funcs ; do
+        setup $dir || return 1
+        $func $dir || return 1
+        teardown $dir || return 1
+    done
+}
+
+function TEST_ceph_df() {
+    local dir=$1
+    setup $dir || return 1
+
+    run_mon $dir a || return 1
+    run_osd $dir 0 || return 1
+    run_osd $dir 1 || return 1
+    run_osd $dir 2 || return 1
+    run_osd $dir 3 || return 1
+    run_osd $dir 4 || return 1
+    run_osd $dir 5 || return 1
+    run_mgr $dir x || return 1
+
+    profile+=" plugin=jerasure"
+    profile+=" technique=reed_sol_van"
+    profile+=" k=4"
+    profile+=" m=2"
+    profile+=" crush-failure-domain=osd"
+
+    ceph osd erasure-code-profile set ec42profile ${profile}
+ 
+    local rep_poolname=testcephdf_replicate
+    local ec_poolname=testcephdf_erasurecode
+    create_pool $rep_poolname 6 6 replicated
+    create_pool $ec_poolname 6 6 erasure ec42profile
+
+    local global_avail=`ceph df -f json | jq '.stats.total_avail_bytes'`
+    local rep_avail=`ceph df -f json | jq '.pools | map(select(.name == "$rep_poolname"))[0].stats.max_avail'`
+    local ec_avail=`ceph df -f json | jq '.pools | map(select(.name == "$ec_poolname"))[0].stats.max_avail'`
+
+    echo "${global_avail} >= ${rep_avail}*3" | bc || return 1
+    echo "${global_avail} >= ${ec_avail}*1.5" | bc || return 1
+
+    ceph osd pool delete  $rep_poolname $rep_poolname  --yes-i-really-really-mean-it
+    ceph osd pool delete  $ec_poolname $ec_poolname  --yes-i-really-really-mean-it
+    ceph osd erasure-code-profile rm ec42profile
+    teardown $dir || return 1
+}
+
+main osd-pool-df "$@"