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1) Test that the primary mirror image cannot be removed while
the mirror set is sync'ing.
2) Test that you cannot start a second mirror up-convert while
one is already in progress.
The trouble is that if the sync/conversion finishes before the
tests occur, the tests will fail by why of success where there
should have been failure. This means the sync/conversion must
happen very quickly, but this is possible because the test
mirrors we are creating are so small.
In order to decrease the likelyhood of these test failing (or
more correctly, failing to test the right thing), I've increase
the size of the mirrors. It will still be remotely possible that
the tests will fail (by way of failing to test the right thing).
If this continues to happen, more involved mechanisms will need
to be put in place. (Perhaps these will still be created, but
this change should be a remedy until that time.)
This check-in enables the 'mirrored' log type. It can be specified
by using the '--mirrorlog' option as follows:
#> lvcreate -m1 --mirrorlog mirrored -L 5G -n lv vg
I've also included a couple updates to the testsuite. These updates
include tests for the new log type, and some fixes to some of the
*lvconvert* tests.
1. Found bug in 'redundant log' implementation that caused
problems when converting a linear that spanned multiple
devices to a mirror (wasn't checking for NULL value of
provided parameter in _alloc_parallel_area)
2. Testsuite was failing to perform tests when 'not' modifier
was used. This allowed a couple issues to slip through.
Added a 'not_sh' modifier that negates tests performed by
functions defined in the shell source file.
3. Was initializing a variable to far down, which cause
previously set value to be overridden. (This was the
result of the collision of the "redundant log" and
lvconvert fix patches.)
When mirror convert polling is started (mainly as backgound process,
in lvchange -a y or in lvconvert itself) it tries to read VG
and LV identified by its name.
Unfortunatelly, the VG can have already different LV under the same name,
and various more or less funny things can happen (note that
_finish_lvconvert_mirror suspends the volume for example).
(the typical example is our testing script which continuously recreates
LVs under the same name in the same VG.)
This patch adds optional uuid parameter which helps to properly
select the monitoring object. For lvconvert polling it is set to LV UUID
and both _get_lvconvert_vg and _get_lvconvert_lv uses it to read proper VG/LV.
(In the pvmove case it is NULL, here we poll for physical volume name).
Fix 'make check' to use DMDIR to check DM_DEV_DIR support in dmsetup.
Add basic test cases for mirrored LV.
Add basic test cases for lvconvert mirror.
Add basic test cases for pvmove.
Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Add new vgsplit and vgmerge tests.
Dave Wysochanski <dwysocha@redhat.com>
