On 6/18/2011 8:51 PM, Stephen Harris wrote: > On Sat, Jun 18, 2011 at 10:13:00PM -0400, Lamar Owen wrote: >> On Saturday, June 18, 2011 10:00:25 PM Stephen Harris wrote: >>> But space is running out; I wondering if the new 3Tb disks would work >>> in this scenario; most importantly will 2.6.18-238.9.1.el5PAE see the >>> whole disk? And also whether I need to be worried about 4Kbyte sectors. >> >> You'll have to change to GPT partitioning to use>2TB; for instance: > > Only if I'm partitioning the disk, surely. If I just throw the whole > raw disk into mdadm (sdd, sde, sdf...) then isn't partitioning > irrelevant? So...you were planning on treating the RAID as a raw block device, too, then? :) Otherwise, when you go to partition *it*, I think you'll find that you need to use GPT. >> Linux 2.6.32-131.2.1.el6.i686 #1 SMP Wed May 18 07:07:27 EDT 2011 i686 i686 i386 GNU/Linux > > Hmm, el6. Nice to know that will work when CentOS6 comes out; maybe I'll > wait until then and rebuild my machine with 64bit mode. It's a good idea. These many-TB filesystems really push the limits of a 32-bit system.