HP OpenView Storage Mirroring User Guide (360226-002, May 2004)

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Storage Mirroring Groups
Storage Mirroring requires two local groups on each source and target for security. During the installation process, these
groups are automatically created. The groups are assigned specific case-sensitive names:
Double-Take Admin
Double-Take Monitors
The groups are installed differently depending on your operating system.
! Windows 200x—The local administrator and the domain administrator are automatically added to the Storage Mirroring
Admin group.
! Windows NT—Two factors determine what accounts are added to the Storage Mirroring Admin group:
! The type of machine you are logged on to (domain controller or member server) when you install Storage Mirroring
! The account used to install Storage Mirroring (local user, local adminstrator, or domain administrator account)
The following table shows what accounts are added to the Storage Mirroring Admin group when you install Storage
Mirroring on Windows NT.
NOTE: For a Windows 200x member server, if an Active Directory user is granted access to the Active Directory
Double-Take Admin or Double-Take Monitors groups, the user or domain group must also be granted
access to the local Storage Mirroring groups. If you are administering a Windows 200x domain controller,
the Active Directory group will provide sufficient access.
Account Used to Install
Storage Mirroring
Machine Type Accounts Added to Admin Group
Local User Member Server Local User
Local Administrator
Local Administrator Member Server Local Administrator
Domain Administrator Member Server Local Administrator
Domain Administrator
Local User Domain Controller Local User
Domain Administrator
Domain Administrator
(Local Administrator)
Domain Controller Domain Administrator
NOTE: For Windows NT, you should install Storage Mirroring as a domain administrator on either a member
server or a domain controller (PCD/BDC) so that you will have administrator rights to all machines
running Storage Mirroring.