On Sep 27, 2009, at 8:41 PM, Ron Watkins <rwa...@gmail.com> wrote:
I have a box with 4 disks. It was my intent to place a mirrored root partition on 2 disks on different controllers, then use the remaining space and the other 2 disks to create a raid-5 configuration from which to export iscsi luns for use by other hosts.
You can't have a raidz (raid5) with 2 disks, it's a 3 disk minimum. You can have a mirror of the two. Get 2 good large disks and make a mirror.
The problem im having is that when I try to install OS, it either takes the entire disk or a partition the same size as the entire disk. I tried creating 2 slices, but the install won't allow it and if I make the solaris partition smaller, then the OS no longer sees the rest of the disk, only the small piece.
On the install it will ask you for the size you want to use, pick a smaller size. It will still create a partition filling the whole disk, but you can use format to create additional slices. I usually make mine slightly smaller then the disk, allows you to replace with a smaller disk in the future if need be and leaves a little room for utility slices, like a meta-data slice for SVM.
I found references on how to mirror the root disk pool, but the grub piece doesn't seem to work as when I disconnect the first disk all I get at reboot is a grub prompt.
Try zero'ing out the first sector (or 63 to get rid of any junk in the first cylinder), then use format and duplicate the layout of the first disk, add slice zero, then run installgrub.
-Ross _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
