device=/dev/sdb dd if=/dev/zero of=${device} obs=512 count=100 dd if=/dev/zero of=${device} obs=512 count=100 seek=$(( $(blockdev --getsz ${device}) -100 )) parted ${device} "mklabel gpt" parted ${device} "mkpart primary 0% 100%"

fdisk -l /dev/sdb 

rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-3.el7.elrepo.noarch.rpm

yum -y install drbd84-utils kmod-drbd84

ip addr hostname

cat <<EOFF > /etc/drbd.d/jtelshared.res resource jtelshared { protocol C; meta-disk internal; device /dev/drbd1; syncer { verify-alg sha1; } net { allow-two-primaries; } on acd-store1 { disk /dev/sdb1; address 10.4.8.71:7789; } on acd-store2 { disk /dev/sdb1; address 10.4.8.171:7789; } startup { become-primary-on both; } } EOFF

drbdadm primary jtelshared --force

drbdadm disk-options --c-plan-ahead=0 --resync-rate=110M jtelshared

mkfs.xfs -L data /

/dev/drbd/by-res/jtelshared/0 /srv/jtel/shared xfs noauto,noatime,nodiratime 0 0

mkdir /srv/jtel mkdir /srv/jtel/shared chown -R jtel:jtel /srv/jtel mount /srv/jtel/shared

cat /proc/drbd   -->   #

drbdadm 

mkdir /srv/jtel mkdir /srv/jtel/shared chown -R jtel:jtel /srv/jtel drbdadm primary jtelshared mount /srv/jtel/shared

yum -y install samba samba-client lsof

cat <<EOFF > /etc/samba/smb.conf [global] workgroup = SAMBA security = user passdb backend = tdbsam printing = cups printcap name = cups load printers = yes cups options = raw min protocol = NT1 ntlm auth = yes [homes] comment = Home Directories valid users = %S, %D%w%S browseable = No read only = No inherit acls = Yes [printers] comment = All Printers path = /var/tmp printable = Yes create mask = 0600 browseable = No [print$] comment = Printer Drivers path = /var/lib/samba/drivers write list = root create mask = 0664 directory mask = 0775 [shared] comment = jtel ACD Shared Directory read only = no public = yes writable = yes locking = yes path = /srv/jtel/shared guest ok = yes create mask = 0644 directory mask = 0755 force user = jtel force group = 

setsebool -P samba_enable_home_dirs=on samba_export_all_rw=on use_samba_home_dirs=on use_nfs_home_dirs=on printf '<password>\n<password>\n' | smbpasswd -a -s jtel firewall-cmd --zone=public --add-port=445/tcp --add-port=139/tcp --add-port=138/udp --add-port=137/udp --permanent firewall-cmd --reload

useradd -m Administrator printf 'F1r3B²11\nF1r3B²11\n' | smbpasswd -a -s Administrator 

mount /srv/jtel/shared service nmb start service smb start   # Now check access to the SMB share via (for example) one of the windows machines.   service smb stop service nmb stop umount /srv/jtel/shared   # do same again on other node

service smb stop service nmb stop umount /srv/jtel/shared systemctl disable smb

KE_VIP=10.4.8.22

pcs resource create ClusterDataJTELSharedMount ocf:heartbeat:Filesystem device="/dev/drbd/by-res/jtelshared/0" directory="/srv/jtel/shared" fstype="xfs" --group=jtel_portal_group pcs resource create ClusterIP ocf:heartbeat:IPaddr2 ip=${KE_VIP} cidr_netmask=32 op monitor interval=30s --group=jtel_portal_group pcs resource create samba systemd:smb op monitor interval=30s --group=jtel_portal_group pcs constraint order start ClusterDataJTELSharedMount then ClusterIP pcs constraint order start ClusterIP then samba

pcs status 

# 

# Failover to node 2 pcs cluster standby uk-acd-store1    # ... (wait)   pcs status   # Then test the availability of the files from the windows machines. # Create a new file before failing back (to make sure DRBD working ok).   # Fail back to node 1 pcs cluster unstandby uk-acd-store1 pcs cluster standby uk-acd-store2   # ... (wait) pcs status # Then test the availability of the files from the windows machines. # Check that the new file created above is available.   # Unstandby node 2 pcs cluster unstandby uk-acd-store2

ln -s /srv/jtel/shared /home/jtel/shared