Advanced Setting - Quantum DXi6900 User Manual

Chapter 9: Configuration
NAS Configuration
ADS Share Permissions
To manage user access to CIFS/SMB shares when the DXi6900 is joined to a Windows domain, use the
MMC (Microsoft Management Console). Log onto the MMC on the domain controller and access a share's
properties to set share permissions for users.
Additional Information
In some cases, when you view file permissions on a Windows system, you will not see the user and
group information. Instead you will see the SID (security ID) which appears as a series of numbers. This
occurs when you move files (for example, using a backup utility or DOS xcopy) from one system to
another system, and the user and group from the source system do not exist on the target system.
Often users and groups are unique to a particular scope, such as a Windows system or an ADS domain.
As a result, some assigned permissions might not be available on the target system because the
associated user and group do not exist there. However, common groups (for example, Administrators,
Users, and Everyone) are recognized on most Windows systems and domains.

Advanced Setting

The Advanced Setting page allows you to enable or disable advanced SMB settings.
To access the Advanced Setting page, on the NAS page, click the Advanced Setting tab (see
141 below).
Figure 141: Advanced Setting Page
To enable or disable advanced SMB settings:
1. Select the check box to enable, or clear the check box to disable, the following settings:
Enable Opportunistic Locking - (Enabled by default) Opportunistic locking lets clients lock files and
locally cache information without the risk of another user changing the file. This increases performance
for many file operations, but it may decrease performance in other operations because the server that
grants the opportunistic lock must manage the breaking of that lock when another user requests access
to the file.
Note: System performance may decrease if Opportunistic Locking is disabled.
Quantum DXi6900 User's Guide
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