Rick,
> You might also consider TMPFS for /tmp. It's much faster if you don't
> need huge /tmp capacity or persistence.
At one point, we started to recommend this in "The Virtualization
Cookbook". The reply was to avoid it because tmpfs costs you memory which
is much more valuable on z than disk.
-Mike
On Wed, Dec 17, 2014 at 10:09 AM, Rick Troth <ri...@velocitysoftware.com>
wrote:
>
> 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>
>
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