Viewing Controller Properties

Use this option to view the properties of a selected controller.

How to View Controller Properties

1 Select a controller in the Physical View; then select either (1) the Controller >>Properties pull-down menu option, or (2) Properties from the right-mouse pop-up menu.

Result: The Controller Properties dialog is displayed.

The Base tab displays basic controller information, such as the manufacturer and serial number of the controller and the cache/processor size.

The Interfaces tab displays information about the drive and host interfaces to this controller, in two tables. See, About the Drive Interfaces table and About the Host Interfaces table, below.
2 Select Close to close the dialog.

About the Drive Interfaces Table

The information in the Drive interfaces table varies depending on the interface type.


Interface Type Information displayed
SCSI

Each row in this table describes a controller drive interface, an access path from this controller to drives in the Storage Subsystem. Every drive interface in the Storage Subsystem associated with the selected controller is displayed in this table.

  • The Channel column lists the SCSI channel number of the drive interface

  • The Current ID column lists the SCSI ID of the controller making the connection to a drive through this channel.

Fibre channel

Each row in this table describes a controller drive interface, an access path from this controller to a single drive port on a Storage Subsystem drive. (There will be two fibre channel drive interfaces to every drive, one to each drive port.) Every drive interface in the Storage Subsystem associated with the selected controller is displayed in this table.

  • The Channel column lists the channel number of the drive interface. There are multiple channels that can be used on a single controller.

  • The Current ID column lists the actual Loop ID of the controller port connecting through this channel to a drive port.

About the Host Interfaces Table

The information in the Host interfaces table varies depending on the interface type.


Interface Type Information displayed
SCSI

Each row in this table describes a controller host interface, a connection from a SCSI controller to a host adapter.

  • The Channel column lists the SCSI channel number of the controller host interface

  • The Current ID column lists the SCSI ID of the controller host interface

Fibre channel

Each row in this table describes a controller host interface, a connection from a fibre channel controller port to a host port. There are one or more channels on a single controller used to access host ports in fibre channel.

  • The Channel column lists the channel ID used to connect to the host port

  • The Current ID column lists the current Loop ID of the controller port associated with the host interface. This is shown in the form Decimal Loop ID / hexadecimal AL_PA.

    Note: If the Preferred ID is set to 126, indicating that the controller host interface is using a point-to-point connection rather than an arbitrated loop, the value Not Applicable is displayed.

    
    				
  • The Preferred ID lists the preferred Loop ID of the controller port associated with the host interface.This can be set either through a hardware switch (on older 4th generation controllers) or through the Change Preferred ID dialog in the form Decimal Loop ID / hexadecimal AL_PA.

  • The NL-Port ID lists the NL-Port Identifier (in hexadecimal) of the controller port associated with this host interface. The NL-Port ID is a 24-bit address used in the S_ID and D_ID fields of a frame.