[Linux-cluster] Re: GFS limits: fs size, etc.

[Ed L Cashin]

Ken Preslan <kpreslan at redhat.com> writes:

...
> For Linux 2.6 on a 32-bit platform, the max filesystem size is 16TB if
> you trust the sign bit, 8TB if you don't.  This limit comes from the
> 32-bit page index in the "struct page": 2^32 * 4096 bytes/page = 16TB.
>
> For Linux 2.6 on a 64-bit platform, the max filesystem size is *big*.
> Something around 2^64 bytes.

I think I'm going to get an AMD64 machine and try a 20TB GFS fs.  

If anybody's aready doing this, I'd like to hear about it, esp. any
gotchas.

-- 
  Ed L Cashin <ecashin at coraid.com>