On 12/17/2014 09:41 AM, Mark Pace wrote: > With btrfs now the default file system on sles12, is there a new > recommended way to layout DASD devices?
As long as you're using normal LVM, there is no need to change your layout. > I would think if you had really big 3390 devices that btrfs makes sense. > But still working with mod-9s it doesn't seem like the right fit. When using it as a *filesystem* the backing store has no impact. If you're thinking of using multiple physical volumes, you have the same question(s) with LVM: how many and how big? > I'm still putting / on a minidisk and then creating a large LVM and > breaking out > home > srv > tmp > usr > var > opt > into logical volumes in the LVM. Looks fine, Mark. Isolating root (or at least /boot) is a great idea. Any one of the above could be a BTRFS (as an FS, not vol mangler) candidate. You might also consider TMPFS for /tmp. It's much faster if you don't need huge /tmp capacity or persistence. -- Rick Troth Senior Software Developer Velocity Software Inc. Mountain View, CA 94041 Main: (877) 964-8867 Direct: (614) 594-9768 ri...@velocitysoftware.com <mailto:ri...@velocitysoftware.com> ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/