Administrator Guide

4 Click the Users and User Groups tab.
5 On the Directory User Groups subtab, select the directory user group, then click Edit Settings.
The Edit Settings dialog box opens.
6 Modify local group membership for the directory user group.
a In the Local User Groups area, click Change.
The Select Local User Groups dialog box opens.
b (Optional) To create a new local user group, click Create Local User Group, then complete the Create Local User Group
wizard. For user interface reference information, click Help.
c Select the checkbox for each local user group you want to associate with the directory user group.
d To remove the directory user group from a local group, clear the checkbox for the local group.
e Click OK.
The Select Local User Groups dialog box closes.
7 Click OK.
The Edit Settings dialog box closes.
8 Click OK.
Delete a Directory User Group
Delete a directory user group if you no longer want to allow access to the directory users that belong to the group.
1 If you are connected to a Data Collector, select a Storage Center from the drop-down list in the left navigation pane.
2 Click Summary.
The Summary view is displayed.
3 Click (Settings).
The Storage Center Settings dialog box opens.
4 Click the Users and User Groups tab.
5 On the Directory User Groups subtab, select the directory user group, then click Delete.
The Delete dialog box opens.
6 Click OK to conrm.
7 Click OK.
Managing Front-End I/O Ports
Front-end ports connect an Storage Center directly to a server using SAS connections or to the Ethernet networks and Fibre Channel (FC)
fabrics that contain servers that use storage. iSCSI, FC, or SAS I/O ports can be designated for use as front-end ports.
Front-End Connectivity Modes
Storage Center uses either legacy mode, virtual port mode, or ALUA port mode to transport data to servers that use SAN storage. In
legacy mode, front-end I/O ports are congured in pairs of primary and reserved ports. In virtual port mode, all ports are active, and if one
port fails the load is distributed between the remaining ports within the same fault domain. In ALUA port mode, volumes are mapped using
two paths, active and passive.
NOTE
: In Legacy mode, reserve ports and primary ports reside on separate controllers, providing controller-level failover only.
Legacy mode does not provide port-level failover.
The front-end connectivity mode is congured independently for Fibre Channel and iSCSI. Both transport types can be congured to use
the same mode or dierent modes to meet the needs of the network infrastructure. For example, a Storage Center can be congured to
use virtual port mode for iSCSI and legacy mode for FC.
• The front-end connectivity mode for FC and iSCSI ports is initially selected during Storage Center deployment.
Storage Center Maintenance
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