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Actually, I can see how minor it is...

Posted Jan 26, 2006 13:43 UTC (Thu) by hummassa (subscriber, #307)
In reply to: MD / DM by gypsumfantastic
Parent article: MD / DM

reshaping is a risky operation. I expect people to fully backup before
doing it (like they would if they would backup/reshape/restore like in the
old days). Then reshape, then if something went wrong, restore. The fact
that 99.9% of the time they wouldn't need to restore is a bonus IMHO.

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Posted Jan 26, 2006 23:40 UTC (Thu) by neilbrown (subscriber, #359) [Link]

I would exepct people to have adequate backups, or equivalent disaster recovery, whether they reshape an array or not. RAID can improve reliability, but never make the data indestructable.

Further, once the code is finished, fully reviewed and fully tested (which is still a little way off), I don't see that you data would be any less safe during a reshape then it is during a resync.