This function takes a device name (e.g., sda) and returns the link name
that it matches in /dev/disk/by-path. Used to help people with many
similar named devices (hundreds of DASDs, for example).
---
storage/devices.py | 17 +++++++++++++++++
1 files changed, 17 insertions(+), 0 deletions(-)
diff --git a/storage/devices.py b/storage/devices.py
index b46479b..a70c667 100644
--- a/storage/devices.py
+++ b/storage/devices.py
@@ -143,6 +143,23 @@ def devicePathToName(devicePath):
return name
+def deviceNameToDiskByPath(deviceName=None):
+ bypath = '/dev/disk/by-path'
+
+ if not deviceName:
+ return ""
+
+ if not os.path.isdir(bypath):
+ return ""
+
+ for path in os.listdir(bypath):
+ target = os.path.basename(os.readlink(bypath + '/' + path))
+ if target == deviceName:
+ return path
+
+ return ""
+
+
class Device(object):
""" A generic device.
--
1.6.3.3
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