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Re add SAP system server to our domain

Former Member
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Hi,

I'd like to re add the SAP production host SAPHOST1 to our domain.

Our production SAP system are running with win2003 SP2 in MC on host SAPHOST1 and SAPHOST2, and installed in our domain "DOMAIN.COM". Now

all the server information data of SAPHOST1 was lost in our domain control server, and the domain user could not log on to the server SAPHOST1, therefore SAP dose not work on it.

Unfortunately we don't have a backup for this server information on the

domain control server

Is there any risk for our SAP system if we re add the server to the

domain? Could you please advise how to restore this server?

Any suggestions/comments

would be appreciated.

Thanks!

Joseph

Accepted Solutions (1)

Accepted Solutions (1)

markus_doehr2
Active Contributor
0 Kudos

On Windows users and domain associations are stored as GUIDs, not as names. Those GUIDs are generated when you create users or join a domain and they are unique.

Even if you use the same server- and user names the GUID will be difference and hence the system won't operate because all permissions (filesystem, registry) point to the old GUID.

A systemcopy (installation of a system using a backup) is the only clean solution for this problem as you can read in the domain migration note (this is Windows...)

Markus

Answers (2)

Answers (2)

Former Member
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check sap note 1233320 - Domain migration for SAP system.

Former Member
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you can do that provided you make sure all the SAP relevant users <sid>adm and SAPService<SID> domain/local group memberships and related rights are unchanged.

Former Member
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Thanks!

Our ECC with SQL Server 2005 are running in MSMC environment, and Microsoft engineer advise us to reinstall the SQL Server after we re add the host to domain and cluster.

Not sure if the SQL Server need to be re installed.

Former Member
0 Kudos

Is your SAP running on the other node? including DB instance?

If so, easy solution may be, Take Full Database backup, Make note of kernel version ete and then reinstall Windows on the other node, configure your cluster, reinstall SAP in the same directories and network struture, bring up the same kernel level as it was and restore your SQL database.

Hope this solution helps.

Regards,

Krishna