[root]

Install Hearbeat-2

PHP Code:

aptitude update ; aptitude install heartbeat-2 


or from backports (it's better):

PHP Code:

aptitude -t lenny-backports install heartbeat-2 heartbeat-2-gui 


Create backup of HA configs, before start with configuring

PHP Code:

cp -r /etc/ha.d /opt/ 


Edit hosts

PHP Code:

vim /etc/hosts 


PHP Code:

127.0.0.1       localhost

192.168.1.101   node1
192.168.1.102   node2 


Create authentication keys

PHP Code:

vim /etc/ha.d/authkeys 


Several types are available: crc, sha1 and md5

crc is a method without authentication, insecure you should use it only in very secury vlans/networks or if you use a cross-over cable.

Example 1:

PHP Code:

auth 1
1 crc 


Example 2:

PHP Code:

auth 1
1 sha1 ThisIsAVeryLongAndBoringPasswordAndMaybeSecure 


Example 3:

PHP Code:

auth 1
1 md5 ThisIsAVeryLongAndBoringPasswordAndMaybeSecure 


finally set right permissions:

PHP Code:

chmod 600 /etc/ha.d/authkeys 


copy config to node2

PHP Code:

scp /etc/ha.d/authkeys node2:/etc/ha.d/authkeys 


ha.cf

PHP Code:

vim /etc/ha.d/ha.cf 


PHP Code:

# Configuration for Heart-Beat 2
# <info@idrobot.net>

# Use heartbeat version 2
crm on

# Use device eth0 to broadcast the heartbea
bcast eth0

# Node hostnames - output of uname -n
node fw1
node fw2

# Logfile
logfile /var/log/ha-log

# Ping Gateway
ping 192.168.2.1
ping 192.168.2.13

# Which port Heartbeat will use for its UDP intra-cluster communication
udpport 694

# keepalive: how long between heartbeats?
keepalive 1

# deadtime: how long-to-declare-host-dead?
deadtime 5

# warntime: how long before issuing "late heartbeat" warning?
warntime 3

# Very first dead time (initdead)
initdead 10 


Ensure they see each other:

PHP Code:

crmadmin -N 


Output:

PHP Code:

root@node1:~$ crmadmin -N
normal node: node2 (bd76d0d7-fd2e-4a08-8dfe-7a704f5db5e0)
normal node: node1 (7cfa2f8d-406a-40fe-98d5-6663807990df) 


Copy config no node2

PHP Code:

scp /etc/ha.d/ha.cf node2:/etc/ha.d/ha.cf 


Show running CIB:

PHP Code:

cibadmin -Ql 


-Q Query
-l Local

Location of CIB config-file:

PHP Code:

less /var/lib/heartbeat/crm/cib.xml 


Clean ressource

PHP Code:

crm_resource -C -r bind9-child:0 -H fw2 


-C Clean
-r Ressource
-H Host

Graphical-GUI for Heartbeat

PHP Code:

aptitude update ; aptitude install heartbeat-2-gui 


To be able to log on you need to set a password for hacluster user:

PHP Code:

node1:~# passwd hacluster
node2:~# passwd hacluster 


Or you can add another user (user=id) to hacluster group:

PHP Code:

usermod -G haclient id 


[root]

I describe here the easiest and best way to install and configure DRBD with HeartBeat.

edit your sources and add backports:

PHP Code:

vim /etc/apt/sources.list 


PHP Code:

deb http://ftp.de.debian.org/debian/ lenny main
deb-src http://ftp.de.debian.org/debian/ lenny main

deb http://security.debian.org/ lenny/updates main
deb-src http://security.debian.org/ lenny/updates main

deb http://volatile.debian.org/debian-volatile lenny/volatile main
deb-src http://volatile.debian.org/debian-volatile lenny/volatile main

deb http://ftp.de.debian.org/debian/ lenny main non-free contrib

deb http://www.backports.org/debian lenny-backports main contrib non-free 


PHP Code:

aptitude -t etch-backports install drbd8-source drbd8-utils 


compile and install DRBD

PHP Code:

m-a a-i drbd8 


remove DRBD from autostart

PHP Code:

update-rc.d -f drbd remove 


Create drbd.conf

PHP Code:

vim /etc/drbd.conf 


example config:

PHP Code:

# examples are in /usr/share/doc/drbd8/*

global {
    usage-count no;
}

common {
  syncer { rate 100M; }
}

resource drbd0 {
  protocol C;

  handlers {
    pri-on-incon-degr "echo o > /proc/sysrq-trigger ; halt -f";
    pri-lost-after-sb "echo o > /proc/sysrq-trigger ; halt -f";
    local-io-error "echo o > /proc/sysrq-trigger ; halt -f";
    outdate-peer "/usr/sbin/drbd-peer-outdater";
  }

  startup {
    degr-wfc-timeout 120;    # 2 minutes.
  }

  disk {
    on-io-error   detach;
  }

  net {

    after-sb-0pri disconnect;
    after-sb-1pri disconnect;
    after-sb-2pri disconnect;

    rr-conflict disconnect;
  }


  syncer {
    rate 100M;

    al-extents 257;
  }

  on node1 {
    device     /dev/drbd0;
    disk       /dev/sda3;
    address    192.168.1.101:7788;
    flexible-meta-disk  internal;

  }

  on node2 {
    device     /dev/drbd0;
    disk       /dev/sda3;
    address    192.168.1.102:7788;
    flexible-meta-disk  internal;

  }
} 


Attention each disk-device need a separate port!

Copy your config to node2

PHP Code:

scp /etc/drbd.conf node2:/etc/drbd.conf 


We need to start the driver and tell Linux to load it the next time it boots:

PHP Code:

modprobe drbd
echo 'drbd' >> /etc/modules
lsmod | grep drbd 


Start DRBD

PHP Code:

/etc/init.d/drbd start 


Show DRBD status:

PHP Code:

cat /proc/drbd 


Create DRBD disk device:
drbdadm create-md drbd0

execute this on both nodes:

PHP Code:

chgrp haclient /sbin/drbdsetup /sbin/drbdmeta
chmod o-x /sbin/drbdsetup /sbin/drbdmeta
chmod u+s /sbin/drbdsetup /sbin/drbdmeta 


PHP Code:

drbdadm -- --overwrite-data-of-peer primary drbd0 


Create fs on drbd device:

PHP Code:

mkfs.ext3 /dev/drbd0 


Set node to primary mode:

PHP Code:

drbdadm primary all 


for the secondary node:

PHP Code:

drbdadm secondary all 


show status drbd0

PHP Code:

drbdadm dstate drbd0 


UUID:

PHP Code:

cat /var/lib/heartbeat/hostcache 


Overwrite UUID

PHP Code:

crm_uuid -w 200989f1-4cad-4710-93a9-e2697a96b53a 


[root]

This was my problem and I fix it only with few commands here they are:

primary/unknown and secondary/unknown

1. umount everything

2. On primary node

PHP Code:

drbdadm connect all 


3. On secondary node

PHP Code:

drbdadm -- --discard-my-data connect all 


[root]

Will invalidate the data on the node where you execute this command:

PHP Code:

drbdadm invalidate all 


Will invalidate the data on the other node where you run this command:

PHP Code:

drbdadm invalidate_remote all 


If you have several resources you may do then one at a time :

PHP Code:

drbdadm invalidate resource-name 


result:

PHP Code:

version: 8.0.14 (api:86/proto:86)
GIT-hash: bb447522fc9a87d0069b7e14f0234911ebdab0f7 build by phil@fat-tyre, 2008-11-12 16:40:33
 0: cs:SyncSource st:Secondary/Primary ds:UpToDate/Inconsistent C r---
    ns:963688 nr:72 dw:72 dr:969712 al:0 bm:60 lo:504 pe:1468 ua:2009 ap:0
        [========>...........] synced: 46.8% (1090088/2047900)K
        finish: 0:02:23 speed: 7,344 (5,948) K/sec
        resync: used:2/61 hits:482322 misses:60 starving:0 dirty:0 changed:60
        act_log: used:0/257 hits:0 misses:0 starving:0 dirty:0 changed:0 


[root]

PHP Code:

version: 8.0.14 (api:86/proto:86)
GIT-hash: bb447522fc9a87d0069b7e14f0234911ebdab0f7 build by phil@fat-tyre, 2008-11-12 16:40:33
 0: cs:SyncSource st:Primary/Secondary ds:UpToDate/Inconsistent C r---
    ns:111824232 nr:0 dw:6386564 dr:105446302 al:1600 bm:6435 lo:1 pe:46 ua:256 ap:0
        [>....................] synced:  3.0% (97025/99995)M
        finish: 1:05:42 speed: 25,056 (27,644) K/sec
        resync: used:2/61 hits:190182 misses:187 starving:0 dirty:0 changed:187
        act_log: used:0/257 hits:1595041 misses:2327 starving:0 dirty:727 changed:1600 


More Infos: [Link blocked: Please register to see it!]

[root]

Put fw1 into standby:

PHP Code:

crm_standby -U fw1 -v true 


Put fw1 back to online:

PHP Code:

crm_standby -U fw1 -v false 


[root]

PHP Code:

Clean ressources: 


PHP Code:

crm_resource -C -r srv-mount -H fw1 


PHP Code:

crm_resource -C -r outer-ip -H fw2