Some usb cardreaders use multiple lun's (for different slots) and report a
fake disk serial which is the same for all the lun's (#517603)
So if we have multiple disks with all the same serial, if they are all
using the usb-storage driver, assume they are single path instead of
multipath.
---
storage/devicetree.py | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/storage/devicetree.py b/storage/devicetree.py
index a76dfff..f4596de 100644
--- a/storage/devicetree.py
+++ b/storage/devicetree.py
@@ -1796,6 +1796,20 @@ class DeviceTree(object):
log.info("adding %s to singlepath_disks" % (disks[0]['name'],))
singlepath_disks.append(disks[0])
else:
+ # some usb cardreaders use multiple lun's (for different slots)
+ # and report a fake disk serial which is the same for all the
+ # lun's (#517603)
+ all_usb = True
+ for d in disks:
+ if d.get("ID_USB_DRIVER") != "usb-storage":
+ all_usb = False
+ break
+ if all_usb:
+ log.info("adding multi lun usb mass storage device to singlepath_disks: %s" %
+ [disk['name'] for disk in disks])
+ singlepath_disks.extend(disks)
+ continue
+
multipath_members = {}
for d in disks:
log.info("adding %s to multipath_disks" % (d['name'],))
--
1.6.4
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