[Lustre-discuss] 8T Limit

Heiko Schröter schroete at iup.physik.uni-bremen.de
Tue Jan 26 23:06:00 PST 2010


Am Dienstag 26 Januar 2010 18:15:13 schrieb Peter Jones:

Any chance for 16TB+ with ext4 on vanilla kernels ?

If yes, which kernel version ?

Regards
Heiko

> Yes, that is correct. So far we have only tested on RHEL5, but I believe 
> that this should also work in theory on SLES11. However, we have so far 
> been unable to find a volunteer able to help with SLES11 testing to 
> confirm that the practice matches up with the theory. I have been 
> talking with a couple of our OEM partners about this possibility so 
> hopefully we can get this done in the near future. A couple of sites 
> have been testing 16TB LUNs on RHEL with a pre-release version of 1.8.2 
> and the feedback so far has been positive.
> 
> Brian J. Murrell wrote:
> > On Tue, 2010-01-26 at 09:18 -0500, Roger Spellman wrote: 
> >   
> >> I recall that there is an 8T limit on the size of an OST.  Is that
> >> just for Lustre 1.6?  Or also 1.8 and 2.0?
> >>
> >> Now that we are starting to get 2T drives, is there any way to exceed
> >> 8T?
> >>     
> >
> > I believe 16T is coming in 1.8.2 for distros where we can use ext4.
> > IIRC, that's RHEL5 at least.  Unfortunately the ChangeLog(s) seem to be
> > lacking details yet.
> >
> > b.



More information about the lustre-discuss mailing list