I have found the following link which answers question 1. But there's more stuff that's seems undocumented https://raid.wiki.kernel.org/index.php/RAID_superblock_formats Question 2 Does the superblock of size 256+2 start at 0? Does the first block start immediately after 258 bytes? Also question 3,4,5 Marek On Saturday, October 24, 2015, Marek <mlf.conv@xxxxxxxxx> wrote: > > Hi, > > is there a documentation available on how mdadm stores data? E.g. > 1. super-block > 2. offset of first block on each drive > 3. whether mdadm stores blocks as raw data or stores some kind of > metadata associated with each block e.g. disk 1 -> data_block1 > immidiatelly followed by data_block 5 or > metadata_for_block_1 | data_block 1 | metadata_for_block_5 | data_block 5 | > 4. how and where mdadm stores its backup superblock > 5. what klind of XOR algorithm is used by mdadm > > thanks, > > Marek -- 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
