Mapping Windows User and Group IDs
You can use the Windows ID Mapping setting for a volume to specify how Windows
clients map user and group information to Xsan-compatible user IDs (UIDs) and group
IDs (GIDs), which they need in order to access Xsan volumes.
Note: To use ID mapping, Windows clients must be running StorNext 2.7.
Xsan controllers and clients must be running Xsan 1.4.2 or later.
Windows clients can use these methods to provide UIDs and GIDs:
Generate IDs from GUID: Windows clients dynamically generate UIDs and GIDs
based on Globally Unique Identifier (GUID) information in an Active Directory domain.
Choose this method for Macintosh computers on the SAN that are bound (connected)
to Active Directory with the binding options set to automatically generate IDs.
Use IDs from LDAP (RFC 2307): Windows clients get UID and GID values from the
uidNumber and gidNumber attributes in Active Directory records. Choose this method
for Macintosh computers on the SAN that are bound to Active Directory with the
binding options set to map IDs to uidNumber and gidNumber.
The Active Directory binding options are set with System Preferences > Login Options
> Edit Network Account Server in Mac OS X v10.6 (or Directory Utility in Mac OS X
v10.5).
Important:
To avoid ID conflicts, be sure all computers on the SAN use the same Active
Directory domain and the same method of ID mapping.
To select the Windows ID mapping method:
1
In Xsan Admin, select Volumes in the SAN Assets list, and choose Edit Volume Settings
from the Action (gear) pop-up menu.
2
Choose a mapping method from the Windows ID Mapping pop-up menu.
If you choose “Use IDs from LDAP (RFC 2307),” you can change the ID numbers used
when a directory record doesn’t include a uidNumber or gidNumber attribute.
3
Click OK.
Xsan Admin unmounts the volume from clients and controllers and stops the volume
before changing the Windows ID mapping method, and then starts the volume and
mounts it on each computer that had it mounted.
78
Chapter 5
Managing Clients and Users
Chapter 5
Managing Clients and Users
79