On 07/13/2015 06:59 AM, Robin Hill wrote: [snip /] Let me elaborate on one of Robin's comments: > The --assume-clean option will prevent parity calculation (as it assumes > that the parity on disk is already correct), which may be what you're > after. It should only be used it you're absolutely certain of the data > though, as it can lead to large-scale corruption otherwise. It is not enough to be certain of the order to use --create --assume-clean on existing data. You must also be certain of superblock type, chunk size, data offset, and layout option. Data loss due to unwise use of --create has a history of bad outcomes. It destroys the previous metadata on array members, metadata that is almost always needed to recover damaged arrays. The --create option should *never* be used on an array with important data without first asking for advice on this list. Phil -- 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
