[dm-devel] new path revalidation policy
christophe varoqui
christophe.varoqui at free.fr
Mon Feb 23 08:46:04 UTC 2004
Hello,
I've got a problem with the new path revalidation method :
The storage controlers I use for testing offer zero valid paths during a
controler switch. I just can't see how such a scenario will handled
correctly : how will the kernel mpath code wait for userspace to
revalidate a path before sending IO errors ?
Anyway, given this part works, would you prefer to see the path
revalidation userspace spawn 1 process per multipath or 1 master daemon
plus threads ? I personnaly would vote for the former.
Last question : what is the userspace action needed to revalidate a path
? new libdevmapper primitive ?
regards,
cvaroqui
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