Sv translation

language	en

Create LVM Physical Volume, Volume Group and Logical Volume (Both Nodes)

The commands below assume that /dev/sdb will be used for the DRBD on top of LVM configuration, and that the disks are EXACTLY the same size.

Translations Ignore

Code Block

# Create the phsyical volume - this is based on sdb assuming it is the second drive on the system
lvm pvcreate /dev/sdb

# Create the volume group
lvm vgcreate "vg_drbd_jtelshared" /dev/sdb

# Create the logical volume
lvm lvcreate -l +100%FREE vg_drbd_jtelshared -n lv_drbd_jtelshared

Configure Firewall (Both Nodes)

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Code Block
# Prepare the firewall firewall-cmd --zone=public --add-port=7788-7799/tcp --permanent firewall-cmd --reload

Install elrepo to yum (Both Nodes)

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Code Block
# Install elrepo 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

Install and enable DRBD (Both Nodes)

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Code Block
# Install DRBD yum -y install drbd84-utils kmod-drbd84 lsof # Enable drbd at boot, and in this session systemctl enable drbd systemctl start drbd

Configure DRBD (Both Nodes)

NOTE: The following commands requires the hostname of both machines and the IP Address. These are obtained as follows:

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Code Block
ip addr hostname

Create a DRBD config file for jtelshared on /dev/sdb

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Code Block

title	/etc/drbd.d/jtelshared.res

# Configure DRBD
cat <<EOFF > /etc/drbd.d/jtelshared.res
resource jtelshared {
    protocol C;
    meta-disk internal;
    device /dev/drbd0;
    syncer {
        verify-alg sha1;
    }
    net {
        allow-two-primaries;
    }
    on acd-store1.jtel.local {
        disk   /dev/vg_drbd_jtelshared/lv_drbd_jtelshared;
        address 10.42.14.98:7789;
    }
    on acd-store2.jtel.local {
        disk   /dev/vg_drbd_jtelshared/lv_drbd_jtelshared;
        address 10.42.14.198:7789;
    }
    startup {
        become-primary-on both;
    }
}
EOFF

Note: it has been observed, that the fully qualified host name is required in the configuration file.

Create Metadata and start (Both Nodes)

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# Create metadata and start DRBD drbdadm create-md jtelshared drbdadm up jtelshared

Make one node primary (First Node)

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drbdadm primary jtelshared --force

Tune the transfer (Second Node)

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

Wait for initial sync to complete (Either Node)

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Code Block

cat /proc/drbd
 
-->
 
# When not yet done:
 
version: 8.4.10-1 (api:1/proto:86-101)
GIT-hash: a4d5de01fffd7e4cde48a080e2c686f9e8cebf4c build by mockbuild@, 2017-09-15 14:23:22

 1: cs:SyncTarget ro:Secondary/Primary ds:Inconsistent/UpToDate C r-----
    ns:0 nr:3955712 dw:3950592 dr:0 al:8 bm:0 lo:5 pe:0 ua:5 ap:0 ep:1 wo:f oos:264474588
        [>....................] sync'ed:  1.5% (258272/262132)M
        finish: 2:08:08 speed: 34,388 (25,652) want: 112,640 K/sec


-->

# When done:

version: 8.4.10-1 (api:1/proto:86-101)
GIT-hash: a4d5de01fffd7e4cde48a080e2c686f9e8cebf4c build by mockbuild@, 2017-09-15 14:23:22

 1: cs:Connected ro:Secondary/Primary ds:UpToDate/UpToDate C r-----
    ns:0 nr:15626582 dw:284051762 dr:0 al:8 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0

Untune the transfer and make primary (Second Node)

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drbdadm adjust jtelshared drbdadm primary jtelshared

Create filesystem (First Node)

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mkfs.xfs -L data /dev

/drbd0

...

/drbd/by-res/jtelshared/0

Create fstab entry for file system (Both Nodes)

Add the following line to /etc/fstab

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

Mount the file system (First Node)

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

...

Create a test file

...

and

...

Unmount (First Node)

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Code Block

mkdir /srv/jtel mkdir

cat <<EOFF > /srv/jtel/shared/test.txt

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

test 123
EOFF
umount /srv/jtel/shared

Mount the file system and check the test file (Second Node)

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Code Block

mkdir /srv/jtel
mkdir /srv/jtel/shared
chown -R jtel:jtel /srv/jtel
mount /srv/jtel/shared
cat /srv/jtel/shared/test.txt
 
# Check contents of file before proceeding
 
rm /srv/jtel/shared/test.txt
umount /srv/jtel/shared

Install Samba and lsof (Both Nodes)

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title	Install SAMBA

yum -y install samba samba-client lsof

Configure Samba (Both Nodes)

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title	Configure SAMBA

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 = jtel
    acl allow execute always = True

EOFF

Setup SeLinux, jtel User access and Firewall for Samba (Both Nodes)

Replace <password> with the actual password for the jtel user:

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Code Block

title	SeLinux, jtel User, Firewall

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

If necessary, add further users to samba:

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title	More SAMBA users

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

Test SAMBA (Both Nodes)

This test should be performed on the node which currently has /srv/jtel/shared mounted:

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Code Block

title	Test SAMBA

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
umount /srv/jtel/shared
 
# do same again on other node

Unmount and disable SAMBA (Both Nodes)

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title	Unmount

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

Install PCS Services (Both Nodes)

See Redundancy - Installing PCS Cluster.

Setup virtual IP (One Node Only!)

Change the following to set the virtual IP which should be shared between the nodes.

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Code Block

title	Set virtual IP

KE_VIP=10.4.8.22

Configure PCS Resources (One Node Only!)

Configure the PCS resources with the following commands:

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title	Configure PCS Resources

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

Test

Test as follows:

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title	Test pcs status

pcs status
 
--> shows the status of the newly created resources on both nodes, one node should be active. 
 
Cluster name: portal
Stack: corosync
Current DC: uk-acd-store2 (version 1.1.16-12.el7_4.8-94ff4df) - partition with quorum
Last updated: Mon Mar 19 15:40:24 2018
Last change: Mon Mar 19 15:40:16 2018 by root via cibadmin on uk-acd-store1

2 nodes configured
3 resources configured

Online: [ uk-acd-store1 uk-acd-store2 ]

Full list of resources:

 Resource Group: jtel_portal_group
     ClusterDataJTELSharedMount (ocf::heartbeat:Filesystem):    Started uk-acd-store1
     ClusterIP  (ocf::heartbeat:IPaddr2):       Started uk-acd-store1
     samba      (systemd:smb):  Started uk-acd-store1

Daemon Status:
  corosync: active/enabled
  pacemaker: active/enabled
  pcsd: active/enabled

Test the file mount:

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title	Test file mount

# From the windows machines:
 
dir \\uk-acd-store\shared

Test manual failover:

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Code Block

title	Test file mount

# 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

Manually link /home/jtel/shared (Both Nodes)

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Code Block

title	link /home/jtel/shared

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

Sv translation

language	de

Status
colour Red
title This page is only available in English

Sv translation

language	fr

Créer un volume physique, un groupe de volumes et un volume logique LVM (les deux nœuds)

Les commandes ci-dessous supposent que /dev/sdb sera utilisé pour le DRBD en plus de la configuration LVM, et que les disques sont EXACTEMENT la même taille.

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# Create the phsyical volume - this is based on sdb assuming it is the second drive on the system lvm pvcreate /dev/sdb # Create the volume group lvm vgcreate "vg_drbd_jtelshared" /dev/sdb # Create the logical volume lvm lvcreate -l +100%FREE vg_drbd_jtelshared -n lv_drbd_jtelshared

Configurer le parefeu (les deux nœuds)

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Code Block
# Préparez le pare-feu firewall-cmd --zone=public --add-port=7788-7799/tcp --permanentfirewall-cmd --reload

Installer elrepo à yum (les deux nœuds)

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Code Block
# Install elrepo 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

Installer et activer DRBD (les deux nœuds)

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# Install DRBD yum -y install drbd84-utils kmod-drbd84 lsof # Enable drbd at boot, and in this session systemctl enable drbd systemctl start drbd

Configurer DRBD (les deux nœuds)

NOTE : Les commandes suivantes nécessitent le nom d'hôte des deux machines et l'adresse IP. Ceux-ci sont obtenus comme suit :

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Code Block
ip addr hostname

Créer un fichier de configuration DRBD pour jtelshared sur /dev/sdb

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title	/etc/drbd.d/jtelshared.res

# Configure DRBD cat <<EOFF > /etc/drbd.d/jtelshared.res resource jtelshared { protocol C; meta-disk internal; device /dev/drbd0; syncer { verify-alg sha1; } net { allow-two-primaries; } on acd-store1.jtel.local { disk /dev/vg_drbd_jtelshared/lv_drbd_jtelshared; address 10.42.14.98:7789; } on acd-store2.jtel.local { disk /dev/vg_drbd_jtelshared/lv_drbd_jtelshared; address 10.42.14.198:7789; } startup { become-primary-on both; } } EOFF

Note : il a été observé que le nom d'hôte entièrement qualifié est requis dans le fichier de configuration.

Créer des métadonnées et démarrer (les deux nœuds)

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# Create metadata and start DRBD drbdadm create-md jtelshared drbdadm up jtelshared

Faire un nœud primaire (premier nœud)

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Code Block
drbdadm primary jtelshared --force

Régler le transfert (deuxième nœud)

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

Attendre la fin de la synchronisation initiale (l'un ou l'autre des nœuds)

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Code Block

cat /proc/drbd   -->   # Quand ce n'est pas encore fait:   version: 8.4.10-1 (api:1/proto:86-101) GIT-hash: a4d5de01fffd7e4cde48a080e2c686f9e8cebf4c build by mockbuild@, 2017-09-15 14:23:22 1: cs:SyncTarget ro:Secondary/Primary ds:Inconsistent/UpToDate C r----- ns:0 nr:3955712 dw:3950592 dr:0 al:8 bm:0 lo:5 pe:0 ua:5 ap:0 ep:1 wo:f oos:264474588 [>....................] sync'ed: 1.5% (258272/262132)M finish: 2:08:08 speed: 34,388 (25,652) want: 112 640 K/sec --> # Quand c'est fait : version : 8.4.10-1 (api:1/proto:86-101) GIT-hash: a4d5de01fffd7e4cde48a080e2c686f9e8cebf4c build by mockbuild@, 2017-09-15 14:23:22 1: cs:Connected ro:Secondary/Primary ds:UpToDate/UpToDate C r----- ns:0 nr:15626582 dw:284051762 dr:0 al:8 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0

Désaccorder le transfert et faire le primaire (Second Node)

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Code Block
drbdadm adjust jtelshared drbdadm primary jtelshared

Créer un système de fichiers (premier nœud)

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Code Block
mkfs.xfs -L data /dev/drbd/by-res/jtelshared/0

Créer une entrée fstab pour le système de fichiers (les deux nœuds)

Ajouter la ligne suivante à /etc/fstab

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

Monter le système de fichiers (premier nœud)

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

Créer un fichier test et le démonter (premier nœud)

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Code Block
cat <<EOFF > /srv/jtel/shared/test.txt test 123 EOFF umount /srv/jtel/shared

Monter le système de fichiers et vérifier le fichier test (Second Node)

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mkdir /srv/jtel mkdir /srv/jtel/shared chown -R jtel:jtel /srv/jtel mount /srv/jtel/shared cat /srv/jtel/shared/test.txt   # Check contents of file before proceeding   rm /srv/jtel/shared/test.txt umount /srv/jtel/shared

...

Installer Samba

...

et lsof (

...

Install

les deux nœuds)

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Code Block

title

Installer SAMBA

yum -y install samba samba-

client lsof

Configure Samba (Both Nodes)

Configure

client lsof

Configurer Samba (les deux nœuds)

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Code Block

title

Configurer SAMBA

cat <<EOFF > /etc/samba/smb.conf

 [global]

 workgroup = SAMBA

security = user

passdb backend = tdbsam

printing = cups

printcap

name = cups

 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

 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

/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 = jtel

 acl allow execute always = True

EOFF sed -i -e "s/MYGROUP/WORKGROUP/g" /etc/samba/smb.conf

...

User Firewall

 EOFF

Configuration de SeLinux, jtel Accès utilisateur et pare-feu pour Samba (les deux nœuds)

Remplacez <password> par le mot de passe réel de l'utilisateur de jtel :

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Code Block

title	SeLinux, utilisateur jtel

,

parefeu

setsebool -P samba_enable_home_dirs=on samba_export_all_rw=on use_samba_home_dirs=on use_nfs_home_dirs=on

 printf '

fireball

<password>\

nfireball

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

...

More users

Si nécessaire, ajoutez d'autres utilisateurs à samba :

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Code Block

title

Plus d'utilisateurs de SAMBA

useradd -m Administrator

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

...

Tester SAMBA (

...

les deux nœuds)

...

Ce test doit être effectué sur le nœud qui a actuellement /srv/jtel/shared

...

Test

monté :

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Code Block

title

Tester SAMBA

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

...

Démonter et désactiver SAMBA (

...

Unmount

les deux nœuds)

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Code Block

title

Démonter

service smb stop

service

nmb stop

umount /srv/jtel/shared

 systemctl disable smb

...

Installer les services PCS

...

(

...

les deux nœuds)

...

Voir Redundancy - Installing PCS Cluster.

...

Configurer l'IP

...

virtuel (un seul nœud !)

Change the following to set the virtual IP which should be shared between the nodes.

Set virtual

Modifiez les éléments suivants pour définir l'IP virtuel qui doit être partagé entre les nœuds.

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Code Block

title

Définir l'IP virtuel

KE_VIP=10.4.8.22

...

Configurer les ressources PCS

...

(un seul nœud !)

...

Configure Resources

Configurez les ressources PCS à l'aide des commandes suivantes :

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Code Block

title

Configurer les ressources PCS

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

Test

...

Test pcs status

Tester comme suit :

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Code Block

title

Tester le statut du PC

pcs status

-->

shows

indique

the

l'état

status

des

of

ressources

the

nouvellement

newly

créées

created

sur

resources

les

on

deux

both nodes

nœuds,

one

un

node

nœud

should

doit

be

être

active

actif.

Cluster name

  Nom du cluster : portal

 Stack : corosync

 Current DC : uk-acd-store2 (version 1.1.16-12.el7_4.8-94ff4df) - partition

with

avec quorum

Last updated: Mon

 Dernière mise à jour : Lun 19 Mar

19

15:40:24 2018

Last

 Dernière

change

modification:

Mon

Lun 19 Mar

19

15:40:16 2018

by

par root via cibadmin

on

sur uk-acd-store1

nodes configured 3 resources configured Online

nœuds configurés 3 ressources configurées en ligne : [ uk-acd-store1 uk-acd-store2 ]

Full list of resources: Resource Group

 Liste complète des ressources : Groupe de ressources: jtel_portal_group

ClusterDataJTELSharedMount (ocf::heartbeat:Filesystem):

Started uk-acd-store1

ClusterIP

samba

ocf::heartbeat:IPaddr2

systemd:smb):

Started uk-acd-store1

samba

 (systemd:smb):

Started

Démarré uk-acd-store1

Daemon Status: corosync: active/enabled pacemaker: active/enabled pcsd: active/enabled

...

Test file mount

 Statut du démon : corosync : actif/activé pacemaker : actif/activé pcsd : actif/activé

Tester la monture du fichier :

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Code Block

title

Tester la monture du fichier

From

Depuis

the

les

windows

machines

machines

Windows:

dir

\\uk-acd-store\shared

Test

...

Test file mount

de basculement manuel :

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Code Block

title

Tester la monture du fichier

# 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

...

Lier manuellement /home/jtel/shared (

...

link

les deux nœuds)

Translations Ignore

Code Block

title

lier /home/jtel/shared

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

Page tree

Page History

Versions Compared

Old Version 6

New Version Current

Key

Create LVM Physical Volume, Volume Group and Logical Volume (Both Nodes)

Configure Firewall (Both Nodes)

Install elrepo to yum (Both Nodes)

Install and enable DRBD (Both Nodes)

Configure DRBD (Both Nodes)

Create Metadata and start (Both Nodes)

Make one node primary (First Node)

Tune the transfer (Second Node)

Wait for initial sync to complete (Either Node)

Untune the transfer and make primary (Second Node)

Create filesystem (First Node)

Create fstab entry for file system (Both Nodes)

Mount the file system (First Node)

Create a test file

and

Unmount (First Node)

Mount the file system and check the test file (Second Node)

Install Samba and lsof (Both Nodes)

Configure Samba (Both Nodes)

Setup SeLinux, jtel User access and Firewall for Samba (Both Nodes)

Test SAMBA (Both Nodes)

Unmount and disable SAMBA (Both Nodes)

Install PCS Services (Both Nodes)

Setup virtual IP (One Node Only!)

Configure PCS Resources (One Node Only!)

Test

Manually link /home/jtel/shared (Both Nodes)

StatuscolourRedtitleThis page is only available in English

Créer un volume physique, un groupe de volumes et un volume logique LVM (les deux nœuds)

Configurer le parefeu (les deux nœuds)

Installer elrepo à yum (les deux nœuds)

Installer et activer DRBD (les deux nœuds)

Configurer DRBD (les deux nœuds)

Créer des métadonnées et démarrer (les deux nœuds)

Faire un nœud primaire (premier nœud)

Régler le transfert (deuxième nœud)

Attendre la fin de la synchronisation initiale (l'un ou l'autre des nœuds)

Désaccorder le transfert et faire le primaire (Second Node)

Créer un système de fichiers (premier nœud)

Créer une entrée fstab pour le système de fichiers (les deux nœuds)

Monter le système de fichiers (premier nœud)

Créer un fichier test et le démonter (premier nœud)

Monter le système de fichiers et vérifier le fichier test (Second Node)

Installer Samba

et lsof (

les deux nœuds)

Configure Samba (Both Nodes)

Configurer Samba (les deux nœuds)

Configuration de SeLinux, jtel Accès utilisateur et pare-feu pour Samba (les deux nœuds)

Tester SAMBA (

les deux nœuds)

Démonter et désactiver SAMBA (

les deux nœuds)

Installer les services PCS

(

les deux nœuds)

Configurer l'IP

virtuel (un seul nœud !)

Configurer les ressources PCS

(un seul nœud !)

Test

Lier manuellement /home/jtel/shared (

les deux nœuds)

Status
colour Red
title This page is only available in English