Create SAS Port Group

Overview

This function creates a new SAS port group, and registers the port to be a member.

A port group is a group of host interface ports that is allowed to access the volume (LUN group). The Host Affinity is specified for each port group.

  • The maximum number of port groups per storage system is 128, irrespective of the CA types.

  • The maximum number of ports per port group is 8.

  • A port can be a member of multiple port groups.

Caution

  • This function is supported in the ETERNUS DX60 S5/DX100 S5/DX200 S5.

  • Registration of the port is necessary to create a port group. A port group cannot be created if the port that is to be a member has not been registered from GUI.

  • A port in the affinity mode enabled (On) and a port in the affinity mode disabled (Off) cannot exist together in a port group.

    • The affinity mode (On/Off) of a port group is decided when the host affinity setting has been configured on the corresponding port group. All of the member ports in a port group have the same affinity mode.

    • The affinity mode (On/Off) of a port group is not changed until the host affinity setting has been released from the corresponding port group.

    • When one port is registered in multiple port groups, and the affinity setting has been configured on one of the port groups including the corresponding port, the affinity setting is configured on all the port groups, which include the corresponding port, and also on the member ports.

    • Ports without the host affinity setting can be members of a port group, regardless of whether the affinity mode for the group is enabled (On) or disabled (Off).

Note
  • To perform the following operations, use the [Modify CA Port Group] function.

    • Changing the port group settings

    • Adding a port to an existing port group

User Privileges

Availability of Executions in the Default Role

Default role Availability of executions
Monitor  
Admin
StorageAdmin
AccountAdmin  
SecurityAdmin  
Maintainer

Refer to User Roles and Policies for details on the policies and roles.

Settings

CA Port Group Setting

In this screen, input the SAS port group information, and register the port in the port group to be created.

Item Description Setting values

Name

Specify the port group name.

An existing port group name cannot be used. (Port group names cannot overlap with any other port group names, irrespective of the CA types.)

Up to 16 alphanumeric characters,

symbols (except "," (comma) and "?"),

and spaces

Type

The CA type of the port group is displayed.

SAS

Number of CA Port Group Members

The number of member ports (0 (default) to 8) in the CA port group is displayed.

The number of member ports in the port list is updated every time the checkbox has been selected or cleared on the port list.

Select Ports

In this screen, select a SAS port to be registered in an SAS port group. The selectable SAS ports are displayed on the port list.

Item Description

Checkbox to select a port

Select the checkbox of the SAS port to be registered in a SAS port group.

Caution

  • When a port in the affinity mode enabled (On) is selected, ports in the affinity mode disabled (Off) cannot be selected.

  • When a port in the affinity mode disable (Off) is selected, ports in the affinity mode enable (On) cannot be selected.

  • Up to eight ports can be selected.

Port

The location information of the SAS port is displayed.

CM#x CA#y Port#z

x: CM number

y: CA number

z: Port number

Affinity

The affinity status of the SAS port is displayed.

  • If the affinity mode is enabled (On) for the port and the host affinity setting is configured for the port, "On" is displayed.

  • If the affinity mode is disabled (Off) for the port and the host affinity setting is configured for the port, "Off" is displayed.

  • When a port is not registered in the port group or a port belongs to port groups without host affinity settings, the field is blank.

Operating Procedures

In this screen, create a SAS port group, and register the port to be a member.

  1. Click [Create SAS Port Group] in [Action].

  2. Specify the name of the port group that is to be created, select all the ports that are to be registered in the port group, and click the [Create] button.

    → A confirmation screen appears.

    Caution
    • An error screen appears in the following conditions:

      • The "Name" is not entered

      • The "Name" does not satisfy the input conditions

      • The "Name" overlaps with an existing port group name

      • The total number of port groups has exceeded the maximum number for the storage system

      • Nine or more ports are registered in the port group or no ports are registered in the port group

      • Ports with the affinity mode enabled (On) and disabled (Off) exist together

  3. Click the [OK] button.

    → Registration of the SAS port group starts.

  4. Click the [Done] button to return to the [CA Port Group] screen.