Modify SAS Port Parameters

Overview

This function sets the parameters for the SAS host interface port that connects between the storage system and the host.

Caution

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

  • When changing port parameters during operation, stop access from the server that is allocated to the target port. Host access does not need to be stopped to change the port parameters of newly added CA ports.

Note

  • For more details on SAS parameter settings, refer to "Configuration Guide -Server Connection-" for each OS type.

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

SAS Port Parameter Settings

In this screen, set the connection information between the SAS port of the storage system and the host (SAS port parameters).

Item Description Setting values

Port

Select the target port.

The selectable port locations are displayed as options.

CM#x CA#y Port#z

x: CM number

y: CA number

z: Port number

Type

The type of the target port is displayed.

6G SAS

12G SAS

Caution

  • "6G SAS" is supported in the ETERNUS DX60 S5.

  • "12G SAS" is supported in the ETERNUS DX60 S5/DX100 S5/DX200 S5.

Transfer Rate

Select the transfer rate for the target port.

The available transfer rate varies according to the SAS type.

  • When the SAS type is "6G SAS"

    • Auto-negotiation

    • 1.5 Gbit/s

    • 3 Gbit/s

    • 6 Gbit/s

  • When the SAS type is "12G SAS"

    • Auto-negotiation

    • 3 Gbit/s

    • 6 Gbit/s

    • 12 Gbit/s

Auto-negotiation

1.5 Gbit/s

3 Gbit/s

6 Gbit/s

12 Gbit/s

Reset Scope

Specify the reset scope of the target port.

Reset scope is the range where the command reset request from the server is performed, when the target port is connected to multiple servers.

  • I_T_L (I: Initiator, T: Target, L: LUN)

    Reset (cancel) the command request from the server that sent the command reset request.

  • T_L (T: Target, L: LUN)

    Reset (cancel) the command request from all of the servers that are connected to the port.

I_T_L

T_L

Release Reservation if Chip is Reset

Select whether to "Enable" or "Disable" the function to release the reserved status of the volume when the target port (chip) is reset.

Enable

Disable

Operating Procedures

  1. Select which SAS port to set the parameters for (multiple selections can be made) and click [Configure SAS Port] in [Action].
    Note

    • Multiple ports can be set with the same or with different parameters in a single operation. To set parameters to multiple ports, select the target ports and specify the parameters for each port. Set the parameters for all of the selected ports and click the [Modify] button.

  2. Set the parameters for all of the selected ports and click the [Modify] button.

    → A confirmation screen appears.

    Caution

    • If the parameters do not satisfy the input conditions, an error screen appears.

  3. Click the [OK] button.

    → Setting of the SAS port parameters starts.

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