Hi Karl, Karl Pielorz wrote: > I'm a new ZFS convert (so far, I've only been impressed by ZFS) - I'm > running it under FreeBSD 7 atm. > I've got to 'shuffle' all the underlying devices around on my raidz pool - > so their device names will all either change (e.g. "da0" will become "ad4") > - or the devices will get 'jumbled up' (e.g. "ad16" will become "ad22"). > I've read bits and pieces about this - from what I've read, I need to do a > 'zpool export' on the pool, shutdown the system - replace the controllers - > run it all up, then do a 'zpool import'?
Well .... you might need to do that on FreeBSD, I don't know for sure. On Solaris you wouldn't need to do that because we use devids (device ids) which help us to identify and track device movements. You can read a bit more about it in my presentation http://www.jmcp.homeunix.com/~jmcp/WhatIsAGuid.pdf (and if you were in Brisbane, Australia tomorrow you could hear me deliver it in person @ HUMBUG http://www.humbug.org.au) ahem. Shameless self-promotion ends :) > The man page mentions, a 'zpool import' will search '/dev/dsk' or another > directory I give it - here's hoping the FreeBSD port knows how to find the > disks under /dev? :-) It should. I trust PJD's implementation - as far as I'm aware he's got everything else right! > Finally - if I do this and it all goes horribly wrong, presumably putting > the old controllers back in place, with the drives in the 'right' positions > - a 'zpool import' will work? I would hope so. cheers, James C. McPherson -- Senior Kernel Software Engineer, Solaris Sun Microsystems http://blogs.sun.com/jmcp http://www.jmcp.homeunix.com/blog _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
