This makes the ordering consistent with how it was before multipath went
in, as well as adding some explanitory comments to identifyMultipath()
---
storage/devicetree.py | 15 ++++++++++++++-
1 files changed, 14 insertions(+), 1 deletions(-)
diff --git a/storage/devicetree.py b/storage/devicetree.py
index f738922..7839d38 100644
--- a/storage/devicetree.py
+++ b/storage/devicetree.py
@@ -1775,6 +1775,15 @@ class DeviceTree(object):
disk.format = format
def identifyMultipaths(self, devices):
+ # this function does a couple of things
+ # 1) identifies multipath disks
+ # 2) sets their ID_FS_TYPE to multipath_member
+ # 3) removes the individual members of an mpath's partitions
+ # sample input with multipath pairs [sda,sdc] and [sdb,sdd]
+ # [sr0, sda, sda1, sdb, sda2, sdc, sdd, sdc1, sdc2, sde, sde1]
+ # sample output:
+ # [sr0, sda, sdb, sdc, sdd, sde, sde1]
+
log.info("devices to scan for multipath: %s" % [d['name'] for d in devices])
serials = {}
non_disk_devices = {}
@@ -1816,7 +1825,11 @@ class DeviceTree(object):
for devices in non_disk_devices.values():
partition_devices += devices
- return partition_devices + multipath_disks + singlepath_disks
+ # the order here is important for now; partitions need to be after
+ # their disks or dmraid gets weird.
+ retdevs = singlepath_disks + multipath_disks + partition_devices
+ log.info("devices post multipath scan: %s" % [d['name'] for d in retdevs])
+ return retdevs
def populate(self):
""" Locate all storage devices. """
--
1.6.4
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