--- HANFS Reboot ---

OCFS server upgrade procedure
=============================

Start with HANFS1/HANFS2 the server that is not sharing 128.226.136.106/32 ... OCF will shudown more easily
ip addr show
1: lo:  mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
2: ens160:  mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 00:50:56:a2:35:0b brd ff:ff:ff:ff:ff:ff
    inet 128.226.136.103/24 brd 128.226.136.255 scope global noprefixroute ens160
       valid_lft forever preferred_lft forever
    inet 128.226.136.106/32 scope global ens160
       valid_lft forever preferred_lft forever
3: ens192:  mtu 9000 qdisc mq state UP group default qlen 1000
    link/ether 00:50:56:a2:d7:e0 brd ff:ff:ff:ff:ff:ff
    inet 10.1.2.127/22 brd 10.1.3.255 scope global noprefixroute ens192
       valid_lft forever preferred_lft forever
– Stop NFS
systemctl stop nfs
systemctl status nfs

– Stop OCF Services
systemctl stop o2cb
systemctl status o2cb
systemctl stop ocfs2
systemctl status ocfs2

– DISABLE OCFS Services Before ReBoot
  (just to be safe, and to keep it from being activated while the other node is active with an older version)
systemctl disable ocfs2
systemctl disable o2cb

– Stop all cluster related software
systemctl stop keepalived
systemctl status keepalived
systemctl disable keepalived

- Make sure the failover ip (128.226.136.106/32) is not listed
ip addr show

– Apply system updates
yum -y update
yum -y upgrade

- ReBoot
sync
sync
sync
reboot

– Start OCFS ServicesCheck / verify the ocfs2 filesystem /u02 is back online
systemctl start ocfs2
systemctl start o2cb
df -h /u02

- If the filesystem is back online, complete the following steps
- ENABLE OCFS Services
systemctl enable o2cb
systemctl enable ocfs2

- Start NFS
systemctl start nfs
systemctl status nfs

- Export file systems
exportfs -rav

- Start and enable cluster software
systemctl enable keepalived
systemctl start keepalived
systemctl status keepalived

- Repeat on next node.