Add script to monitor GPFS

Reviewed-by: Aleix Boné <abonerib@bsc.es>

m/hut/gpfs-probe.sh

@@ -0,0 +1,18 @@
+#!/bin/sh
+
+N=500
+
+t=$(timeout 5 ssh bsc015557@glogin2.bsc.es "timeout 3 command time -f %e touch /gpfs/projects/bsc15/bsc015557/gpfs.{1..$N} 2>&1; rm -f /gpfs/projects/bsc15/bsc015557/gpfs.{1..$N}")
+
+if [ -z "$t" ]; then
+  t="5.00"
+fi
+
+cat <<EOF
+HTTP/1.1 200 OK
+Content-Type: text/plain; version=0.0.4; charset=utf-8; escaping=values
+
+# HELP gpfs_touch_latency Time to create $N files.
+# TYPE gpfs_touch_latency gauge
+gpfs_touch_latency $t
+EOF