diff --git a/checkstat.sh b/checkstat.sh
new file mode 100644
index 0000000..861a48e
--- /dev/null
+++ b/checkstat.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+while true :
+do
+	hostbusy=$(cat /sys/class/scsi_host/host3/host_busy)
+	echo "---- hostbusy is $hostbusy"
+	for dev in `lsscsi | grep scsi_debug | awk '{print $6}'`; do
+		disk=$(basename $dev)
+		iorequest_cnt=$(cat /sys/block/$disk/device/iorequest_cnt)
+		iodone_cnt=$(cat /sys/block/$disk/device/iodone_cnt)
+		state=$(cat /sys/block/$disk/device/state)
+		echo "$disk $state $iorequest_cnt $iodone_cnt"
+	done
+	sleep $1
+done