On Saturday June 9, rabbit@xxxxxxxxx wrote: > Hi, > > I am about to create a large raid10 array, and I know for a fact that > all the components are identical (dd if=/dev/zero of=/dev/sdXY). Is it > safe to pass --assume-clean and spare 6 hours of reconstruction, or are > there some hidden dangers in doing so? No, there are no hidden dangers. --assume-clean is generally quite safe with mirroring levels (raid1, raid10). The only issue is that if you do a regular 'check', then it will reports lots of issues. If do a 'repair' it will fix the issues. With raid4/5/6, --assume-clean is *not* safe if there is any doubt that the drive are not already in an in-sync state. NeilBrown - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
