Date: Tue, 17 Jan 2006 16:09:31 -0500 From: Sven Willenberger <sven@dmv.com> To: freebsd-stable@freebsd.org Subject: Creating a system RAID-10 device Message-ID: <1137532172.22430.35.camel@lanshark.dmv.com>
next in thread | raw e-mail | index | archive | help
I hope this is the appropriate mailing list for this question, if not please redirect me as needed. My goal is to create a filesystem consisting of a striped raid array over 3 mirror raid arrays that would encompass the entire filesystem including the /boot and root partitions. Generally I would create a RAID10 from 6 disks as follows: gmirror label -v -b round-robin md1 da0 da1 gmirror label -v -b round-robin md2 da2 da3 gmirror label -v -b round-robin md3 da4 da5 gstripe label -v -s 131072 md0 /dev/mirror/md1 /dev/mirror/md2 /dev/mirror/md3 newfs /dev/stripe/md0 naturally the problem here is that it cannot be done on a system that booted from da0. I have seen the example of setting up a mirrored system drive (http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/geom-mirror.html ) which won't quite work for my case either. Using this method I could probably get the one mirror (md1) to work, but I know of no way of then adding the other 2 mirror sets and then redoing the system to stripe across all 3 mirrored sets. The only thing I could think of was to boot from the livecd and create the 6-disk array and then trying to install FreeBSD onto this filesystem. In order to do this the installer would have to recognize /dev/stripe/md0 as a valid "drive" -- is there any way to have this happen? Sven
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?1137532172.22430.35.camel>