[PROPOSAL] GEOM probing/tasting firewall

[Lev Serebryakov]

Hello, Pawel.
You wrote 2 августа 2013 г., 23:04:32:


PJD> Firewall idea is overkill for my taste. I'd much prefer to have a flag
PJD> which would tell GEOM not to present GEOM provider I'm creating for
PJD> tasting. This also means it would not be available via /dev/.
 I've thought about cases like "GPT in gmirror" and, worse, "MBR in gmirror"
to solve by such "overkill" solution -- you don't allow geom_label to taste
devices, which are included in mirror (or other RAID), but allow to taste
them by anything else, so they have /dev entries and picked up by soft-RAID
class they belong to...

 There was MANY threads about such problems in the past, and I don';t
remember to have good solution but "make mirrors out of partitions". Several
solutions were discussed, like "levels" of classes (to make tasting order
predicatable), but, as far as I understand, nothing was done, and no good
solution was found.


-- 
// Black Lion AKA Lev Serebryakov <lev at FreeBSD.org>