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There are five changes to this case.
1. remove testdev check. It can't work anymore and check if it's a
block device directly.
2. It can't change level and chunk size at the same time
3. Sleep more than 10s before check wait.
The test devices are small. Sometimes it can finish so quickly once
the reshape just starts. mdadm will be stuck before it waits reshape
to start. So the sync speed is limited. And it restores the sync speed
when it waits reshape to finish. It's good for case without backup
file.
It uses systemd service mdadm-grow-continue to monitor reshape
progress when specifying backup file. If reshape finishes so quickly
before it starts monitoring reshape progress, the daemon will be stuck
too. Because reshape_progress is 0 which means the reshape hasn't been
started. So give more time to let service can get right information
from kernel space.
But before getting these information. It needs to suspend array. At
the same time the reshape is running. The kernel reshape daemon will
update metadata 10s. So it needs to limit the sync speed more than 10s
before restoring sync speed. Then systemd service can suspend array
and start monitoring reshape progress.
4. Wait until mdadm-grow-continue service exits
mdadm --wait doesn't wait systemd service. For the case that needs
backup file, systemd service deletes the backup file after reshape
finishes. In this test case, it runs next case when reshape finishes.
And it fails because it can't create backup file because the backup
file exits.
5. Don't reshape from raid5 to raid1. It can't work now.
Signed-off-by: Xiao Ni <xni@redhat.com>
Signed-off-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
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It looks ugly in my editor.
Signed-off-by: NeilBrown <neilb@suse.de>
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As the kernel now does less locking, 'check wait' doesn't
always wait long enough. Add some pauses.
Signed-off-by: NeilBrown <neilb@suse.de>
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commit cb19a251a581fe78dcddd1d95dca4d8cb7664819
super1: reserve at least 2 chunks for reshape headroom.
reserved more space in a RAID5, so we need to update to array
sizes when reshaping.
Also make sure reshape tests we change the shape: raid5->raid1
was failing and we didn't notice.
Signed-off-by: NeilBrown <neilb@suse.de>
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Some more fixes to help some tests run properly.
Signed-off-by: NeilBrown <neilb@suse.de>
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Default metadata type is now 1.2, and we sometimes
add extra alignment before the data section,
so adjust tests for these changes.
Signed-off-by: NeilBrown <neilb@suse.de>
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1.1 is more flexible in a number of ways and is safer.
0.90 is still fully supported.
1.0 should possibly be used for RAID1 arrays that you
want to boot off, depending on your boot loader.
Signed-off-by: NeilBrown <neilb@suse.de>
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This seems more appropriate for current (and recent) model drives than
64K.
64K is still the default for '--build' as changing that could corrupt
data.
64K is also the default rounding for 'linear' on kernels older than
2.6.16.
Signed-off-by: NeilBrown <neilb@suse.de>
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Signed-off-by: NeilBrown <neilb@suse.de>
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Signed-off-by: NeilBrown <neilb@suse.de>
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