Administrator Guide

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 check box 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 check box for the local group.

e. When you are finished, click OK. The Select Local User Groups dialog box closes.

7. When you are finished, click OK. The Edit Settings dialog box closes.

8. Click OK to close the Edit Storage Center Settings dialog box.

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.

Prerequisites

The Storage Center must be added to Storage Manager using a Storage Center user with the Administrator privilege.

Steps

1. Expand the Dell Storage Manager menu, and then click Storage.

2. In the SC Series tab, select a Storage Center to open the Storage Center view.

3. In the Summary tab, click Settings. The Edit 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 confirm.

7. Click OK to close the Edit Storage Center Settings dialog box.

Managing Front-End IO 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 IO ports can be designated for use as front-end ports.

NOTE: For Storage Manager clients connected to an SCv2000 series controller with a Data Collector: If an SCv2000

series controller is connected to a server with a SAS front end, nothing related to that SAS connection will be visible in

the servers view of Storage Manager.

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 IO ports are configured 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 configured independently for Fibre Channel and iSCSI. Both transport types can be configured

to use the same mode or different modes to meet the needs of the network infrastructure. For example, a Storage Center can be

configured 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.

• After deployment, the front-end FC and/or iSCSI ports can be changed from legacy mode to virtual port mode.

– After FC and/or iSCSI ports are configured for virtual port mode, they cannot be changed back to legacy mode.

NOTE: Dell strongly recommends using virtual port mode unless the network environment does not meet the

requirements for virtual port mode.

• The front-end connectivity mode for SAS front-end is always ALUA port mode and cannot be changed.

Storage Center Maintenance