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After we have started and synced the mirrored devices, we need to set up a configuration file for the boot process /etc/drbd.conf. By correctly configuring this file and using the init.d/drbd script you can easily make drbd come up correctly when a machine boots up.
#
# /etc/drbd.conf
resource drbd0 {
protocol = C
fsckcmd = /bin/true
# if inittimeout is positive will fore primary status
if
# connection could not be established within that time
# (seconds). *this may compromise your data integrity*
#
# a negative value indicates that drbd should stay WFConnection
# secondary/unknown and just continue the boot process,
thus
# leaving the decision to the cluster manager
#
# not given/0: wait until the partner node shows up,
or
# some operator intervenes; do not timeout.
inittimeout=60
# skip-wait is actually skip-wait-for-sync ...
# we wait for connection regardless (but see inittimeout
above)
skip-wait
disk { disk-size = 66099411 }
# you can reconfigure the sync rate at runtime using
# drbdsetup on the primary.
net {
sync-nice = 19
sync-min = 4M
sync-max = 600M # if you don't care about network
saturation
tl-size = 5000
timeout = 60
connect-int = 10
ping-int = 10
}
on campeche {
device = /dev/nb0
disk = /dev/sda6
address = 172.16.1.1
port = 7788
}
on chihuahua {
device = /dev/nb0
disk = /dev/sda6
address = 172.16.1.2
port = 7788
}
}