Change Device Desc (NWSH) (CHGDEVNWSH)

The Change Device Description (NWSH) (CHGDEVNWSH) command changes the device description for a network server host adapter (NWSH) device.

Parameters

Keyword	Description	Choices	Notes
DEVD	Device description	Name	Required, Key, Positional 1
RSRCNAME	Resource name	Name, *SAME	Optional
LCLIFC	Local interface	Single values: SAME Other values: Element list*	Optional
	Element 1: Subnet mask	Character value
	Element 2: Port speed	*AUTO
	Element 3: Duplex	*AUTO
	Element 4: Local SCSI interface	Element list
	Element 1: Internet address	Character value
	Element 2: Gateway address	Character value
	Element 3: SCSI TCP port	1024-65535, 860
	Element 5: Local LAN interface	Element list
	Element 1: Internet address	Character value
	Element 2: Gateway address	Character value
	Element 3: Virtual Ethernet base UDP port	1024-65471
ONLINE	Online at IPL	SAME, NO, *YES	Optional
MSGQ	Message queue	Single values: SAME, SYSOPR Other values: Qualified object name	Optional
	Qualifier 1: Message queue	Name
	Qualifier 2: Library	Name, LIBL, CURLIB
CMNRCYLMT	Recovery limits	Single values: SAME, SYSVAL Other values: Element list	Optional
	Element 1: Count limit	0-99
	Element 2: Time interval	0-120
TEXT	Text 'description'	Character value, SAME, BLANK	Optional

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Device description (DEVD)

Specifies the name of the device description being changed.

This is a required parameter.

Resource name (RSRCNAME)

Specifies the resource name that identifies the hardware this description represents. Use the Work with Hardware Resources (WRKHDWRSC) command with *CMN specified for the TYPE parameter to determine the resource name.

*SAME: The value does not change.

name: Specify the resource name of the network server host adapter.

Local interface (LCLIFC)

Specifies the local interface for a network server host adapter, which consists of a subnet mask, port speed, duplex, a local Small Computer System Interface (SCSI) configuration and a local Local Area Network (LAN) configuration.

Single values

*SAME: The value does not change.

Element 1: Subnet mask

character-value: Specify the subnet mask associated with the local interface. See the TCP/IP Fastpath Setup book for general information about subnets.
Subnetting provides the capability to partition an internet domain. Specify the mask for the network subnet and host address fields of the internet address that defines a subnet. The subnet mask is in the form, nnn.nnn.nnn.nnn, where nnn is a decimal number ranging from 0 through 255. The subnet mask must mask off all bits of the network class's network ID portion of the internet address. For example, a subnet mask of 255.255.255.0 defines a Class B subnet consisting of all bits in the network portion of the internet address (this is a given) and consisting of all bits in the third byte of an internet address. If the subnet mask is entered from a command line, it must be enclosed in apostrophes.

Element 2: Port speed

Specifies the speed of the physical port described by this local interface.

*AUTO: The hardware automatically determines the port speed.

Element 3: Duplex

Specifies the duplex mode used by the physical port described by this local interface.

*AUTO: The hardware automatically determines the duplex.

Element 4: Local SCSI interface

Specifies the local SCSI interface configuration.

Element 1: Internet address

character-value: Specify the local internet address which the SCSI interface on the network server host adapter responds to. The internet address is specified in the form, nnn.nnn.nnn.nnn, where nnn is a decimal number ranging from 0 through 255. An internet address that has a binary value of all ones or all binary zeros for the network identifier (ID) portion or the host ID portion of the internet address is not valid. The internet address selected must be unique across the i5/OS TCP/IP configuration. If the local internet address is entered from a command line, the address must be enclosed in apostrophes.

Element 2: Gateway address

character-value: Specify the default gateway address for the internet address associated with the SCSI interface, in the form ddd.ddd.ddd.ddd where ddd is a decimal number ranging from 0 to 255. If the gateway address is entered from a command line, the address must be enclosed in apostrophes.

Element 3: SCSI TCP port

port-number: Specify the local SCSI TCP port that the local SCSI interface will listen on for iSCSI traffic. The local SCSI interface internet address and TCP port together define an iSCSI target portal. The well-known TCP port number for iSCSI connections assigned by Internet Assigned Numbers Authority (IANA) is 3260 and this is the default iSCSI port number. The TCP port assigned by IANA as the iSCSI system port is 860. Valid values are 860 and the range 1024 through 65535.

Element 5: Local LAN interface

Specifies the local LAN interface configuration.

Element 1: Internet address

character-value: Specify the local internet address which the LAN interface on the network server host adapter responds to. The internet address is specified in the form, nnn.nnn.nnn.nnn, where nnn is a decimal number ranging from 0 through 255. An internet address that has a binary value of all ones or all binary zeros for the network identifier (ID) portion or the host ID portion of the internet address is not valid. The internet address selected must be unique across the i5/OS TCP/IP configuration. If the local internet address is entered from a command line, the address must be enclosed in apostrophes.

Element 2: Gateway address

character-value: Specify the default gateway address for the internet address associated with the LAN interface, in the form ddd.ddd.ddd.ddd where ddd is a decimal number ranging from 0 to 255. If the gateway address is entered from a command line, the address must be enclosed in apostrophes.

Element 3: Virtual Ethernet base UDP port

1024-65471: Specify the lowest numbered User Datagram Protocol (UDP) port that the local LAN interface will use for virtual Ethernet communication with the remote server. Virtual Ethernet communication is encapsulated in UDP packets. Each virtual Ethernet adapter is automatically assigned a UDP port from a range that begins at the specified base port number and ends at the base port number plus the number of configured virtual Ethernet adapters.

Online at IPL (ONLINE)

Specifies whether this object is automatically varied on at initial program load (IPL).

*SAME: The value does not change.

*NO: This device is not varied on automatically at IPL.
*YES: This device is varied on automatically at IPL.

Message queue (MSGQ)

Specifies the message queue to which operational messages for this device are sent.

Single values

*SAME: The value does not change.
*SYSOPR: Messages are sent to the system operator message queue (QSYS/QSYSOPR).

Qualifier 1: Message queue

name: Specify the name of the message queue to which operational messages are sent.

Qualifier 2: Library

*LIBL: All libraries in the job's library list are searched until the first match is found.
*CURLIB: The current library for the job is searched. If no library is specified as the current library for the job, the QGPL library is used.
name: Specify the name of the library to be searched.

Recovery limits (CMNRCYLMT)

Specifies the communications recovery limits to be used for this device description.

Single values

*SAME: The value does not change.
*SYSVAL: The recovery limits specified in the system value QCMNRCYLMT are used.

Element 1: Count limit

0-99: Specify the number of recovery attempts to be performed by the system.

Element 2: Time interval

0-120: Specify the number of minutes within which recovery attempts are made.

Text 'description' (TEXT)

*SAME: The text (if any) does not change.
*BLANK: No text is specified.

character-value: Specify no more than 50 characters of text, enclosed in apostrophes.

Examples

CHGDEVNWSH   DEVD(DEVNWSH)  MSGQ(NWSHLIB/NWSHMSGQ)

This command changes the device description of a network server host adapter device named DEVNWSH so that operational messages for the device will be sent to message queue NWSHMSGQ in library NWSHLIB.

Error messages

*ESCAPE Messages

CPF2618: Device description &1 not changed.