Mirroring Disks
In Solaris 10, you can mirror the disks during the build process with Jumpstart, or even use ZFS mirroring. However, on older systems, you need to mirror the disks the old fashioned way with DiskSuite 4.2.1. In this example, the file names for the two disks being mirrored are c1t0d0sX and c1t1d0sX.
1. You need to make sure the following packages are installed first:
SUNWmdr SUNWmdu SUNWmdx
This is the least you need to install! Oh and they will need to bzip to install successfully! They can be found on "Solaris 8 Software CD 2" (not sure for Solaris 9, but they could be part of the standard disto), in the following location:
cd $PATH_TO_CDROM/Solaris_8/EA/products/DiskSuite_4.2.1/sparc/Packages pkgadd -d . SUNWmdr SUNWmdu SUNWmdx
Once they are installed, reboot the box. It wouldn't hurt to do an 'init 0' and then a 'boot -r'!
2. Copy the primary disks VTOC to the secondary disk:
prtvtoc /dev/rdsk/c1t0d0s2 | fmthard -s - /dev/rdsk/c1t1d0s2
3. Create the metadatabases
metadb -f -a -c3 /dev/dsk/c1t0d0s7 metadb -f -a -c3 /dev/dsk/c1t1d0s7
4. Create and initialise the metadevices on the primary disk
metainit -f d10 1 1 c1t0d0s0 metainit -f d10 1 1 c1t0d0s1 metainit -f d10 1 1 c1t0d0s3 metainit -f d10 1 1 c1t0d0s4 metainit -f d10 1 1 c1t0d0s5 metainit -f d10 1 1 c1t0d0s6 metainit d0 -m d10 metainit d1 -m d11 metainit d3 -m d13 metainit d4 -m d14 metainit d5 -m d15 metainit d6 -m d16
5. Assign the root metadevice
metaroot d0
6. Edit /etc/vfstab and make sure that all the devices are changed to metadevices. So each line that looked like this
/dev/dsk/c1t0d0s3 /dev/rdsk/c1t0d0s3 /var ufs 1 no -
now looks like
/dev/md/dsk/d3 /dev/md/rdsk/d3 /var ufs 1 no -
7. Run the lockfs command and reboot
lockfs -fa reboot
8. Create the the metadevices on the secondary disk
metainit d20 1 1 c1t1d0s0 metainit d21 1 1 c1t1d0s1 metainit d23 1 1 c1t1d0s3 metainit d24 1 1 c1t1d0s4 metainit d25 1 1 c1t1d0s5 metainit d26 1 1 c1t1d0s6
9. Attach the metadevices from the secondary disk to the metadevices we booted from to start the mirroring process
metattach d0 d20 metattach d1 d21 metattach d3 d23 metattach d4 d24 metattach d5 d25 metattach d6 d26
You can monitor the progress of mirroring with this command:
metastat | grep -i progress
When it returns nothing, it's all finished.
10. Install the boot block on the secondary hard disk so that you can boot off it
installboot /usr/platform/`uname -i`/lib/fs/ufs/bootblk /dev/rdsk/c1t1d0s0
11. Disable the following in /etc/inetd.conf
100229/1 (rpc.metad) 100230/1 (rpc.metamhd)