Saving
Domain Configurations for Future Rebuilding
The basic process is to save the resource
constraints information for each domain into an XML file, which can then be
re-issued to the LogicalDomainsManager, for example, after a hardware failure
to rebuild a desired configuration.
Recently we had an activity where we have to
shutdown the /SYS or the control domain. We have forgot to save the
configuration to SP so when /SYS was brought up we lost the configuration. It
was huge configuration so we had tried to recover it in different ways. We had
a back up copy but that didn't work and gave file corruption errors. It is very
important to remember that every time explorer runs it saves a copy of the
domain configuration. We recovered it from explorer.
1. Login
to control Domain and list the current configuration file.
-bash-3.2# ldm list-spconfig
factory-default
config_new [current]
-bash-3.2#
2.To take
the complete LDOM configuration backup,use below command.
# ldm list-constraints -x >config.xml
3.You can
also take the configuration backup for specific LDOM,
# ldm list-constraints -x ldom_name >
ldom_name.xml
How to
restore the system to factory default ?
1. Login
to the control domain console and remove the spconfig profile.
bash-3.2# ldm ls-spconfig
factory-default
config_new [current]
bash-3.2# ldm
remove-spconfig config_new
bash-3.2# ldm ls-spconfig
factory-default [next poweron]
bash-3.2#
2.Power
cycle the server to take the changes effect.
bash-3.2# init 5
bash-3.2# svc.startd: The system is coming
down. Please wait.
svc.startd: 101 system services are now being
stopped.
Feb 18 10:00:49 sol10-11 syslogd: going down on
signal 15
svc.startd: The system is down.
syncing file systems... done
Serial console stopped.
-> show /SYS
Properties:
type
= Host System
ipmi_name = /SYS
keyswitch_state = Normal
product_name = T5140
product_part_number = 4613802-42
product_serial_number = FML1015013
product_manufacturer
= SUN MICROSYSTEMS
fault_state = Faulted
power_state = Off
-> start /SYS
Are you sure you want to start /SYS (y/n)? y
Starting /SYS
->
-> start /SP/console
Are you sure you want to start /SP/console (y/n)? y
Serial console started. To stop, type #.
Done
0:0:0>Master CPU Tests Basic....Done
0:0:0>Init MMU.....
0:0:0>L2 Tests....Done
0:0:0>Extended CPU Tests....Done
0:0:0>Scrub Memory....Done
0:0:0>Functional CPU Tests....Done
sol10-11 console login:
3. Login
to the system and see whether factory default settings has been restored or not
.
sol10-11 console login: root
Password:
Feb 18 10:10:58 sol10-11 login: ROOT LOGIN
/dev/console
Last login: Tue Feb 18 01:19:27 on console
Oracle Corporation SunOS 5.10 Generic Patch January 2005
You have new mail.
-bash-3.2#
-bash-3.2# ldm list-spconfig
factory-default [current]
-bash-3.2#
Restoring
the sp-config :
1.Once
the system has restored to the factory default,then you can restore the system
backup using the XML files which we have created. Login to the control domain
and restore it.
# ldm
init-system -i config.xml
# ldm
add-spconfig unixarencfg1
# ldm list-spconfig
factory-default
unixarenacfg1 (current)
2.To
restore the specific ldom/primary domain configuration
# ldm init-system -i ldom_name.xml
# ldm add-spconfig unixarencfg2
# ldm list-spconfig
factory-default
unixarenacfg1
unixarenacfg2 (current)
3.To
restore only the virtual service,
# ldm init-system -s -i filename.xml
-bash-3.2# ldm list-spconfig
factory-default
unixarenacfg1
unixarenacfg2[active on Reboot]
-bash-3.2# ldm add-spconfig unixarencfg3
-bash-3.2# ldm list-spconfig
factory-default
unixarenacfg1
unixarenacfg2
unixarenacfg2 (current)
+++++++++++++++++
1.ldm ls-config
2.ldm ls-config -r
3.find /var/opt/SUNWldm/ -type f -name \*timestamp\* -ls
4.cd /var/opt/SUNWldm/bootsets ; ls -ltr (Check for latest time stamp)
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