T4 replaced motherboard - recovering LDOM config?


 
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Operating Systems Solaris T4 replaced motherboard - recovering LDOM config?
# 1  
Old 07-21-2017
T4 replaced motherboard - recovering LDOM config?

T4-2 issues meant replacing motherboard.

I thought the ldom config was automatically saved? Got the oracle document here.

At the moment, unable to get ldoms back - here is the output from a few commands:-

Code:
ldm list
NAME             STATE      FLAGS   CONS    VCPU  MEMORY   UTIL  UPTIME
primary          active     -n-c--  UART    128   261632M  0.0%  3h
ldom1            inactive   ------          96    192G


ldm list-spconfig
factory-default [current]

ldm list-spconfig -r
No autosave configurations

svccfg -s ldmd listprop ldmd/autorecovery_policy
ldmd/autorecovery_policy integer     1

---------- Post updated at 06:03 AM ---------- Previous update was at 05:53 AM ----------

Ah Looks like we've got v2.2 of ldom. I understand theres a bug. Does this mean none of the autosave has worked?
# 2  
Old 07-21-2017
Where is the config saved? Maybe on a chip that must be transferred to the new board? Just an idea - I actually know nothing.
# 3  
Old 07-21-2017
I'm no expert on this one either but it seems that the ldom configuration can be saved (backed up) from the service processor to a XML file.

If you have this XML file you can restore it after a rebuild.

Oracle VM SPARC - LDOM configuration Backup and Restore - UnixArena
This User Gave Thanks to hicksd8 For This Post:
# 4  
Old 07-22-2017
It is best practice to save configuration to XML as per document hicks mentioned.
This is the latest oracle document regarding :
Saving Domain Configurations -
Oracle(R) VM Server for SPARC 3.4 Administration Guide


Put this in in crontab, and save your configuration on external system, best on some NFS.

SP is on a chip, which you pull out for your old motherboard and plugin in new
Remove the Service Processor - SPARC T4-1 Server HTML Document Collection.

If you have other sparc servers on which virtual machines lived and those were on FC / ISCSI you can use other server LDOM configuration to import to serviced machine.

Do not import primary configuration from another server, just LDOM if on external storage.

Is there anything in /var/opt/SUNWldm on the machine ?

Also, a good practice which i endorse (if you use putty) is to save all your putty sessions to a file automatically (with timestamps for log files)
To reconstruct what you did or find data inside those log files can be gold sometimes, since we all make mistakes.

Hope that helps
Regards
Peasant.
These 2 Users Gave Thanks to Peasant For This Post:
# 5  
Old 08-01-2017
Been awhile since I've done it but this is what I did
list configs

Code:
ldm list-spconfig
factory-default
initial
initial1
primary-config
srv1.20140622-00
srv1.20140627-00
srv1.13feb2015 [current]

Then save it
Code:
ldm add-spconfig srv1.20140627-00

And then remember to save your bindings

Code:
 ldm list-constraints -x > /root/list-constraints.`date +%s`

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