Disable gmirror rebuild while fsck and journal fails

I am having  trouble after acrash.

My gmirror is composed from 2 3TB disks with SU journaling (tunefs -j).

I hoped that journaling will allow fast restart in case of a crach but 
no luck.

When fsck with journling is enabled i receive:

"Directory XXXX not found"

and then i need to do full manual fsck

That was a problem number one. From bug reports i've read that it is 
impossible to fix and is related

to write caching.

But then every crash i have gmirror rebuilding and it continues 
rebuilding while doing  fsck on 3TB mirror.

This is PAINFULLY slow (3+ hours?)

I don't see any way to pause gmirror rebuild for the time fsck is 
running. Is there?

Is there any suggestion how to speed up startups in my case after a crash?


Regards,

Artem