On 2005-07-08T00:21:21, "goggin, edward" <egoggin@xxxxxxx> wrote:
> How sould device scanning utilities like blkid, pvscan,
> vgscan, and lvscan (others?) be made to avoid issuing
> a significant number of read ios to passive paths of
> active-passive storage devices?
Good question.
One could argue that if we issue a bd_claim() (I know, it's falling out
of favour ;-), we might want to issue a theoretical bd_claim_exclusive()
which excludes anyone else from messing with our precciiioussss: ie,
everybody else would be denied open().
Sincerely,
Lars Marowsky-Brée <lmb@xxxxxxx>
--
High Availability & Clustering
SUSE Labs, Research and Development
SUSE LINUX Products GmbH - A Novell Business -- Charles Darwin
"Ignorance more frequently begets confidence than does knowledge"
