show mapping of Linux drive letters to physical enclosure/slots for JBOD

wrapper-scripts/mpt2sas-deviceslots.py

@@ -0,0 +1,41 @@
+import sys, re, subprocess
+from pyudev import Context, Device
+
+ARGDEVICENAMES=sys.argv
+ARGDEVICENAMES.pop(0)
+if len(ARGDEVICENAMES)<1:
+	print "Usage: python mpt2sas-deviceslots.py sdX [sdY sdZ ... ]"
+	sys.exit(1)
+
+diskdevices=[]
+context = Context()
+
+SAS2IRCU='/usr/sbin/sas2ircu'
+
+# this gets the serial number of the disk
+# 	the from_device_file() method only comes in a later version of pyudev
+# 	so we can't argue /dev/sdxyz but we can sdxyz to from_name()
+for devicename in ARGDEVICENAMES:
+	try:
+		diskdevices.append(Device.from_name(context, 'block', devicename))
+	except:
+		diskdevices.append(None)
+
+sas2ircu_output=subprocess.check_output([SAS2IRCU, '0', 'DISPLAY'])
+sas2ircu_disks=re.findall("^Device is a Hard disk.*?^\s+Enclosure\s+#\s+:\s+(\d+).*?^\s+Slot\s+#\s+:\s+(\d+).*?^\s+GUID\s+:\s+(\w+).*?^^", sas2ircu_output, re.DOTALL|re.MULTILINE)
+
+for diskdevice in diskdevices:
+	if diskdevice==None:
+		print None
+	else:
+        diskwwn=diskdevice.get('ID_WWN')
+        # udev shows the WWN with 0x in front and sas2ircu doesn't
+        # so we will remove the 0x before comparing it to sas2ircu
+        diskwwn=re.sub('^0x', '', diskwwn)
+		diskmodel=diskdevice.get('ID_MODEL')
+		if diskmodel=="Virtual_Disk":
+			print "{}\tis a virtual disk".format(diskdevice.device_node)
+			next
+		for disk in sas2ircu_disks:
+		        if diskwwn==disk[2]:
+		                print "{}\tin Enclosure:Slot {}:{}\tis a {}\tWWN: {}".format(diskdevice.device_node, disk[0], disk[1], diskmodel, diskwwn)