I've experimented with vol group sizes from 1.4TB to 800GB. With the less-than-1TB size, I experimented with vol group PE sizes from 8M to 16M to 32M. The vol group is 633600MB PE size of 8M, I can only stripe logical vols under 100GB in size. PE size of 16M, the largest logical vol with striping is 103GB (105600 MB). PE size of 32M, same as 16M PE, 103GB.
Betsie Spann VM Systems Programmer ----- Original Message ----- From: "Ulrich Weigand" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Tuesday, April 01, 2003 4:50 PM Subject: Re: mke2fs fails for 1TB filesystem > Betsie Spann wrote: > > >Has anyone successfully created a filesystem on a 1TB logical volume on > >SLES7? > > Is this exactly 1TB, or slightly more? > > I think you are running into the 2.4 block device layer limit here; > it uses 'int' variables in places to represent sector counts, where > 1 sector equals 512 bytes. So, at about 1 TB you start getting > sign overflows, and weird things happen ... > > If you make sure you're using a total block device size of slightly > *less* than 1 TB, does it work then? > > >mke2fs -b 4096 lvname fails with a segmentation fault. > > Well, that's a bug in any case, of course. > > > Bye, > Ulrich > > -- > Dr. Ulrich Weigand > [EMAIL PROTECTED] >
