[Bug 1441930] Re: Fix handling of multipathed disks with 4k-sectors

[Mauricio Faria de Oliveira]

Tested on 14.04.3 daily build.

Things go from this:

	~ # df -h /target
	Filesystem                Size      Used Available Use% Mounted on
	/dev/mapper/mpath0p2     31.1G     47.9M     29.4G   0% /target

	~ # cat /proc/swaps
	Filename				Type		Size	Used	Priority
	/dev/mapper/mpath0p3                    partition	1408448	0	-1

	~ # dmsetup table | grep ^mpath0
	mpath0: 0 554287104 multipath 1 queue_if_no_path 1 alua 2 1 round-robin 0 1 1 8:0 1000 round-robin 0 1 1 65:144 1000 
	mpath0p3: 0 2817024 linear 252:0 66468608
	mpath0p2: 0 66466560 linear 252:0 2048
	mpath0p1: 0 1792 linear 252:0 256

To this:

	~ # df -h /target
	Filesystem                Size      Used Available Use% Mounted on
	/dev/mapper/mpath0p2    249.4G     59.1M    236.7G   0% /target

	~ # cat /proc/swaps
	Filename				Type		Size	Used	Priority
	/dev/mapper/mpath0p3                    partition	11268032	0	-1

	~ # dmsetup table | grep ^mpath0
	mpath0-part2: 0 531732480 linear 252:0 16384
	mpath0-part1: 0 14336 linear 252:0 2048
	mpath0: 0 554287104 multipath 1 queue_if_no_path 1 alua 2 1 round-robin 0 1 1 8:0 1000 round-robin 0 1 1 65:144 1000 
	mpath0p3: 0 22536192 linear 252:0 531748864
	mpath0p2: 0 531732480 linear 252:0 16384
	mpath0p1: 0 14336 linear 252:0 2048
	mpath0-part3: 0 22536192 linear 252:0 531748864

        (ignore -part and p separators, this is another bug which should
be backported for as well)

-- 
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to multipath-tools in Ubuntu.
https://bugs.launchpad.net/bugs/1441930

Title:
  Fix handling of multipathed disks with 4k-sectors

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/1441930/+subscriptions