24 TB UFS2 reality check ?

[Bakul Shah]

On Tue, 08 Jul 2008 14:17:57 PDT Juri Mianovich <juri_mian at yahoo.com>  wrote:
> > I vaguely recall it was more like 700MB of memory per
> > Terabyte on a 50% filled UFS2.  Things may have improved
> > in the three years since I did that.  I don't recall the time
> > to fsck but it was pretty bad!  That was the main reason I
> > switched from UFS2.
> 
> Why does fsck need to reserve all that memory in advance and hold it the enti
> re fsck ?  Is it necessary by definition, or could it be written to not requi
> re that ?

May be it can but why bother.  It just feels wrong to have to
check the entire FS state after a crash -- it doesn't scale.