Re: Proper partition type for components with V1.x superblocks?

["H. Peter Anvin" <hpa@zytor.com>]

Neil Brown wrote:
> 
> But if you use 1.0, then some well-meaning install program might mount
> one drive from a raid1 as a filesystem, write to it, and get your RAID
> all out of sync.
> 

One more thing on this: this is actually fine as long as the RAID code 
detects the out-of-syncness.  This can't be foolproof, of course, but 
for virtually all filesystems there is *something* in the first megabyte 
or so (usually within the first 128K) that is touched by almost every 
write -- the superblock, or its equivalent.

If the RAID code did a sanity check on the first megabyte, it would 
catch the vast majority of all unintentional desynchronization events.

	-hpa