Project:Infrastructure/fbsd notes

Setup notes from fbsd.amd64.dev.gentoo.org

The disk image is (21GiB+64KiB)
21508MiB is the next 4MB boundary after the size of the disk image.
lvcreate -n fbsd.amd64.os -L 21508m -m 1 vg /dev/sda4 /dev/sdb4 --type raid1
lvcreate -n fbsd.amd64.scratch -L 150g -m 1 -i 2 vg --type raid10 /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1

qemu-img convert -p -O host_device FreeBSD-11.1-RELEASE-amd64.qcow2 /dev/vg/fbsd.amd64.os

You cannot adopt into DRBD disk mode, we will convert to DRBD later
gnt-instance add -t plain -o noop --disk=0:adopt=fbsd.amd64.os --disk=1:adopt=fbsd.amd64.scratch --net=0:network=vlan103 -g supermicro --ignore-ipolicy --debug -B vcpus=4,minmem=1G,maxmem=8G,memory=4G -n $GNT_NODE1 --no-start --no-name-check --no-ip-check fbsd.amd64.dev.gentoo.org

Ctrl-C to break waiting for DHCP (no DHCPv4 in our env)
Set root password: passwd
Enable serial console: echo '-Dh' >/boot.config
Disable IPv4 DHCP: sed -i -e '/^ifconfig_DEFAULT/s,DHCP ,,' /etc/rc.conf
Enable SSH: echo sshd_enable=YES /etc/rc.conf
Grab IPv6 address: ifconfig
Allow SSH-as-root-for-now: sed -i -e '/^#?PermitRootLogin/s,no,yes,g' /etc/ssh/sshd_config
Restart SSH: service sshd restart
Reboot to verify: reboot

By doing this now, the DRBD conversion above will complete MUCH faster.
Ensure the data is on the correct set of disks to start
Move OS to first ssd from spinning disk: pvmove -i 5 -n vg/${ID}.disk0_data ${SRC_SPIN1} ${DEST_SSD1}
Move scratch to a spinning disk: TODO
Convert OS to RAID1, using 2nd SSD: lvconvert --type raid1 -m 1 vg/${ID}.disk0_data ${DEST_SSD2}
Convert Scratch to RAID10, 2-way mirror, 2 stripes = 4 disks: -m 1 -i 2
lvconvert --type raid10 -m 1 -i 2 vg/${ID}.disk1_data ${DEST_SPIN2} ${DEST_SPIN3} ${DEST_SPIN4}