Thursday, August 10, 2006

Server Data Migration by Server Type

Server migration, server consolidations and data migration require different scenarios based upon the type of server being migrated and the type of server being migrated to.

Member Server to Member Server
(Same domain or workgroup)

When migrating from a member server to a member server the local accounts, their properties, the local groups and their members must be copied to the target server.
Because SIDs are unique to each server an account and group remapping is required to be performed. In other words any ACLs with SourceComputer\SourceAccount must be reassociated to TagetComputer\TargetAccount.

Account rights must also be remapped to reflect the rights on the target computer

MSVR ServerMigrator performs these steps automatically including copying copy files, folders shares, file permissions, share permissions and account passwords to the target server.

Member Server to Member Server
(Different domain)

A trust relationship must be in place. If the source domain will be removed a domain migration must be performed.

When migrating from a member server to a member server the local accounts, their properties, the local groups and their members must be copied to the target server.
Because SIDs are unique to each server an account and group remapping is required to be performed. In other words any ACLs with SourceComputer\SourceAccount must be reassociated to TagetComputer\TargetAccount.

Account rights must also be remapped to reflect the rights on the target computer

Domain accounts and groups in ACLs are migrated explicitly with the data.

MSVR ServerMigrator performs these steps automatically including copying files, folders shares, file permissions shares, share permissions and account passwords to the target server.

Member Server to Domain Controller
(Same or different domain)

Proper trusts must be in place prior to starting a member server to domain controller data migration.
Before a data migration can be performed, the local accounts and local groups must be converted to domain accounts and domain local groups.
The source server must be reACLed with the new domain accounts and groups.

Domain accounts and groups in ACLs are migrated explicitly with the data.

MSVR ServerMigrator has an optional component to convert local accounts to domain accounts ReACL the source server and copy files, folders shares, file permissions and share permissions to the target domain controller.

Domain Controller to Domain Controller
(Same or different domain)

Proper trusts must be in place prior to starting a domain controller to domain controller data migration. If the source domain is to be removed a domain migration must be performed.

Domain accounts and groups in ACLs are migrated explicitly with the data.

MSVR ServerMigrator copies files, folders shares, file permissions and share permissions to the target domain controller.

Domain Controller to Member Server
(Same or different domain)

Proper trusts must be in place prior to starting a domain controller to member server data migration. If the source domain is to be removed a domain migration must be performed.

Domain accounts and groups in ACLs are migrated explicitly with the data.

MSVR ServerMigrator copies files, folders shares, file permissions and share permissions to the target member server.