Oh! I never read it like you just said. I have been reading it like copy in both directions based on both bitmaps! What you said below, seems reasonable. Guy -----Original Message----- From: Lars Marowsky-Bree [mailto:lmb@xxxxxxx] Sent: Saturday, March 19, 2005 12:54 PM To: Guy; 'Peter T. Breuer'; linux-raid@xxxxxxxxxxxxxxx Subject: Re: [PATCH 1/2] md bitmap bug fixes On 2005-03-19T12:44:14, Guy <bugzilla@xxxxxxxxxxxxxxxx> wrote: > In the case of a split brain, I think one must be 100% voided, and a full > re-sync must be done. Exactly. And that's where the bitmaps come into play; you can look at what is modified on each side, merge those sets, and copy all affected blocks from one side to the other; afterwards, you'll have a consistent block device again. Sincerely, Lars Marowsky-Brée <lmb@xxxxxxx> -- High Availability & Clustering SUSE Labs, Research and Development SUSE LINUX Products GmbH - A Novell Business - 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
