[linux-lvm] Discussion: performance issue on event activation mode

[Martin Wilck]

On Di, 2021-06-08 at 17:19 +0200, Peter Rajnoha wrote:
> On Tue 08 Jun 2021 14:48, Martin Wilck wrote:
> > 
> > Recent multipath-tools ships the "libmpathvalid" library that
> > could be used for this purpose, to make the logic comply with what
> > multipathd itself uses. It could be used as an alternative to
> > libudev
> > for this part of the equation.
> 
> Ah, yes, sure! Still, we have the MD in play...

That's easier than multipath, because you can check for RAID meta data.

> Out of curiosity - if you disable mpath and MD component detection in
> lvm.conf, can you still hit the issue? (Of course, if you're not
> using
> any of the two in your stack.)

The performance issue, you mean? Heming would need to answer that.

Thanks,
Martin