Index: trunk/packages/sipb-xen-database/sipb-xen-database/client/usr/sbin/sipb-xen-lvcreate
===================================================================
--- trunk/packages/sipb-xen-database/sipb-xen-database/client/usr/sbin/sipb-xen-lvcreate	(revision 123)
+++ trunk/packages/sipb-xen-database/sipb-xen-database/client/usr/sbin/sipb-xen-lvcreate	(revision 123)
@@ -0,0 +1,26 @@
+#!/usr/bin/env python
+
+from sipb_xen_database import *
+import sys
+import os.path
+from subprocess import call
+import re
+
+connect('postgres://sipb-xen@sipb-xen-dev.mit.edu/sipb_xen')
+
+def check(b):
+    if not b:
+        exit(1)
+
+vg = "xenvg"
+for d in Disk.select():
+    check(re.match('^[A-Za-z0-9]+$', d.guest_device_name))
+    machine = Machine.get(d.machine_id)
+    check(re.match('^[A-Za-z0-9][A-Za-z0-9._-]*$', machine.name))
+    lvname = machine.name + "_" + d.guest_device_name
+    if not os.path.exists("/dev/%s/%s" % (vg, lvname)):
+        # LV doesn't exist
+        print >>sys.stderr, "Creating LV %s..." % (lvname,)
+        rv = call(["lvcreate", "-L", str(d.size) + "M", "-n", lvname, vg])
+        if rv != 0:
+            print >>sys.stderr, "Error creating LV %s\n" %(lvname,)