Jules Bean wrote:
David Greaves wrote:
I don't really see that it's "safer" though. I would have thought it
was
quicker but potentially less safe.
Avoiding a lot of time stress testing the disks in degraded mode
isn't 'safer'?
Stress testing the disks by an md rebuild is a feature! It increases
confidence that they work.
;)
Seriously, I understand your point now. Yes, a rebuild-free partition
resize would be a nice feature. So would a "help, please find my
superblock by exhaustive scanning" utility ;)
Since this code must work when a partition is added on a totally new
drive, and when the partition is grown DOWN from the low end, clearly
the default must be a rebuild. And running "repair" before doing this
stuff is a really good idea!
What is needed is to do something like assume-clean on the old data and
a sync on the new chunks. I don't see that there is a remotely safe way
to do that, currently, although if you were willing to be unsafe you
could remove a partition, grow it at the "top" end, and reassemble with
--assume-clean. Sprinkling with holy water first might be a good thing.
I'm just thinking out loud here, there are probably good reasons why
this wouldn't work.
--
Bill Davidsen <davidsen@xxxxxxx>
"Woe unto the statesman who makes war without a reason that will still
be valid when the war is over..." Otto von Bismark
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