On Thu, Dec 20, 2007 at 11:34:10PM +0300, Dmitry Morozovsky wrote: > Hi there Pawel and colleagues, > > am I right in thinking that there's currently no way to iron gnop provider in > meta-data? > > I'm thinking of creating the following geom tree: > > ad{4,6,8,10,12}f > | > +> raid3/r0f --+ > | > ad12b | > | | > +> ad12b.nop --+ > +> r0f.journal > > because journal sector size should be equal to data sector size, which is in > this case 2k. > > ad{4,6,8,10}b are used as two gmirrored swaps > > Any thoughts/hints? Thanks in advance. I'd just create small partition at the begining of raid3/r0f for journal. What you propose is not best because: 1. Journal is on the same disk as one of the RAID components. 2. Journal is not protected with RAID - ad12 dies and your whole system will die. My suggestion is to create small (~2GB) raid3/r0fa and big raid3/r0fd. Then use raid3/r0fa as journal provider and raid3/r0fd as data provider. -- Pawel Jakub Dawidek http://www.wheel.pl pjd_at_FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am!
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