Hi Dennis, * Dennis Clarke ([email protected]) wrote: > > OKay, I had to think about this before posting. This question may be silly > or not and I am willing to take the risk of looking foolish. It never > stopped me before :-) > > Given : a machine with dual ( at least ) internal disks, identical in > model and firmware, which may or may not be on the same controller. > > Is there a way to setup the install process such that my default ZFS > mirrored rpool and filesystems therein also have compression AND possibly > copies=2? > > I know that GRUB probably will not grok compressed ZFS. That means this > could be a silly question. Therefore the bootable bits needed to get to > the basic kernel with a few needed modules will be on uncompressed ZFS but > the rest of the system, all of it, can be on compressed ZFS. At least in > theory. > > Can the installer script-foo be modified such that the initial zfs create > has -o compression=on and -o copies=N for some N>1 ?
No, you can't do that. There is discussion underway for tweaking these kinds of settings in the installer. http://defect.opensolaris.org/bz/show_bug.cgi?id=86 That said, you can follow this blog post of mine which should still be applicable for 2009.06 (though I haven't actually tested it yet). http://blogs.sun.com/glagasse/entry/howto_enable_zfs_compression_when Grub will boot from a compressed root pool just fine. So long as it's gzip compressed (which is the default when you turn compression on). Cheers, -- Glenn _______________________________________________ opensolaris-discuss mailing list [email protected]
