Apple Xsan 2 (Third Edition) - Manual (Page 42)

After setup, you use Xsan Admin to create and delete users and groups and to change
group membership. For information about Open Directory servers, see “Directory
Services” on page 24.
Use existing users and groups from an Open Directory server: Select this option to
have the Mac OS X Server setup assistant configure the primary metadata controller to
connect to the Open Directory server whose DNS name or IP address you specify.
If you select this option, Xsan Admin configures all other SAN computers with Xsan 2
to use the Open Directory server.
To set up an Open Directory domain, use Mac OS X Server’s Server Admin
application. Then use the Workgroup Manager application to manage users and
groups. For information, see Open Directory Administration and User Management at
www.apple.com/server/resources/.
Connect to a directory server later: Select this option if you have another type of
directory server, such as Active Directory.
After setting up the primary metadata controller, use System Preferences > Accounts
> Login Options > Network Account Server on each SAN computer (Directory Utility in
Mac OS X v10.5) to connect the computer to your directory server.
If you choose not to use a directory service, you must create the same set of users and
m
groups in System Preferences on each SAN computer.
Important: If you create users and groups on each SAN computer, make sure each user
and group has a numeric user ID (UID) or group ID (GID) that is unique throughout the
SAN, and make sure all SAN users and groups have the same UID or GID on all SAN
computers. One way to do this is to create an identical list of users and groups in the
same order on each computer, following a clean installation of the operating system.
Step 5: Set Up RAID Systems
To set up RAID Systems:
1 Follow the instructions that come with your RAID systems to turn them on and
configure their network, management, and security settings.
2 If your RAID systems come with RAID sets already configured, they’re detected
during SAN setup and you can skip to “Step 6: Create a Metadata Array” on page 43;
otherwise, use the management software that comes with the RAID system to create
arrays based on the RAID schemes of your choice, leaving three drives on one system
unassigned so you can create a small, separate metadata LUN as described in the
next step.
For help choosing other RAID schemes, see “Choosing RAID Schemes for LUNs” on
page 28. Setup scripts for common configurations on Promise RAID systems are
available at www.apple.com/support/.
42 Chapter 3 Setting Up a Storage Area Network