[Lustre-discuss] Excluding dead OST via exclude=

Johann Lombardi johann.lombardi at oracle.com
Mon Oct 18 14:21:25 PDT 2010


On Mon, Oct 18, 2010 at 12:42:36PM +0200, Jonathan Buch wrote:
> I'm trying to exclude a dead OST but I'm having trouble.  When I use
> `df`, it hangs until I use `lctl --device "" deactivate`.
> 
> Should the exclude= mount option prevent df from locking up?

There is actually a mount option (namely lazystatfs, added in 1.8.0) which allows statfs to skip inactive OSTs. This feature can also be enabled on a live system with "lctl set_param llite.*.lazystatfs=1".

Johann



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