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# Set director port attributes

Unisphere supports the setting of director port attributes.

## Steps

1. Select the storage system.
2. Select System > Hardware.
3. In the Hardware panel, click the type of director to open its list view.
4. Select the director, click , and then click Set Port Attributes.
5. Optional: Select the port with the flag settings you want to copy.
6. Select or clear any number of the following attributes:

   | NOTE: The following attributes are for all port types, so depending on the port type, some of the attributes may not be available to you.

   ACLX | Enables the port to be added to a port group.
   Show ACLX Volume | Enables the display of ACLX volume.
   Common Serial Number | Enables multipath configurations or hosts that need a unique serial number to determine which paths lead to the same volume.
   Unique WWN | Ensures unique World Wide Names (WWNs) within the fibre environment (uses storage system serial numbers and port numbers). This attribute is enabled by default for all environment configuration changes and new environments. When disabled, you do not have to change WWNs.
   Init Point to Point | Specifies a point-to-point (direct or switched) topology in the initialization sequence. When disabled (default), it is initialized as an arbitrated loop.
   Volume Set Addressing | Enables the volume set addressing mode. When using volume set addressing, you must specify a four-digit address in the following range: (0)000-(0)007, (0)010-(0)017, and so on, to a maximum of (0)FF0-(0)FF7. Set the following digits: First digit: 0 - Storage systems do not currently support the upper range of volume set addressing. Second digit: VBus number Third digit: Target Fourth digit: LUN
   Avoid Reset Broadcast | Enables a SCSI bus reset to only occur to the port that received the reset (not broadcast to all channels).
   Negotiate Reset | When enabled for AS/400 hosts, this flag forces a SCSI negotiation by the storage system after a SCSI reset, an error, or a bus volume reset.
   Enable Auto Negotiate | Allows two fibre ports to handshake and settle on an optimal speed for data transfer.
   Environ Set | Enables the environmental error reporting by the storage system to the host on the specific port.
   Disable Q Reset on UA | When enabled, a Unit Attention (UA) that is propagated from another director does not flush the queue for this volume on this director. Used for hosts that do not expect the queue to be flushed on a 0629 sense (only on a hard reset).
   Soft Reset | Supports SCSI soft reset on a storage system port when enabled for a Bull/GCOS-7 host.
   SCSI 3 | Alters the inquiry data (when returned by any volume on the port) to report that the storage system supports the SCSI-3 protocol. When disabled, the SCSI-2 protocol is supported.
   SCSI Support1 (OS2007) | Provides a stricter compliance with SCSI standards for managing volume identifiers, multiport targets, unit attention reports, and the absence of a volume at LUN 0.
   Non Participating | Non participating.
   SPC2 Protocol Version | This flag should be enabled (default) in a Windows 2003 environment running Microsoft HCT test version 12.1. When setting this flag, the port must be offline.
   Server on AS400 | Indicates that the port is to behave as a server returning server inquiry data, rather than AS/400 data (applies to AS/400 platforms only).
   Enable AS400 | Indicates whether AS/400 is enabled.
   OpenVMS | Enables an Open VMS fibre connection.
   iSCSI IPv4 Address | Identifies the iSCSI IP address (IPv4) of the port.
   iSCSI IPv4 Default Gateway | Identifies the default gateway address (iSCSI) of the port.
   iSCSI IPv4 Netmask | Identifies the netmask address (iSCSI) of the port.
   iSCSI Initiator Session | Identifies the initiator session ID (iSCSI) of the port.
   iSCSI IPv6 Address | Identifies the iSCSI IP address (IPv6) of the port.
   iSCSI IPv6 Net Prefix | Identifies the iSCSI net prefix (IPv6) of the port. Possible values range from 0 to 127. The default value is 64.

7. Click Add to Job List to add this task to the job list, from which you can schedule or run the task at your convenience. For more information, see Schedule jobs and Preview jobs.

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