According to the e2fsck man page, if you use mke2fs -n on the partition it will tell you where the superblocks should be placed. I recently had to repair an XFS partition with a bad superblock and it automatically scanned for a secondary.
-- Mark Pearson BSc (Computing) Technical Support, Dept Nuclear Medicine Concord Hospital, Hospital Road, Concord, NSW 3139, Australia -- SLUG - Sydney Linux User's Group - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
