Moshe Yudkowsky wrote:

One of the puzzling things about this is that I conceive of RAID10 as two RAID1 pairs, with RAID0 on top of to join them into a large drive. However, when I use --level=10 to create my md drive, I cannot find out which two pairs are the RAID1's: the --detail doesn't give that information. Re-reading the md(4) man page, I think I'm badly mistaken about RAID10.

Furthermore, since grub cannot find the /boot on the md drive, I deduce that RAID10 isn't what the 'net descriptions say it is.


It is exactly what the names implies - a new kind of RAID :) The setup you describe is not RAID10 it is RAID1+0. As far as how linux RAID10 works - here is an excellent article: http://en.wikipedia.org/wiki/Non-standard_RAID_levels#Linux_MD_RAID_10

Peter
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