Help for DVIPA Status
The DVIPA (Dynamic Virtual IP Addressing) Status page displays the DVIPAs that are configured on the TCP/IP stacks within the sysplex. DVIPA information is polled periodically using a NetView timer and the information displayed may not be current. The Last Refresh and Next Refresh fields display when the information was polled and when it will be polled again. The maximum number of DVIPAs to display is set in the TCP390 policy using the MAXDVIPA statement. If there are more DVIPAs than the maximum number, the user is viewing incomplete data and may wish to apply DVIPA filtering.
DVIPA Filters
For ease in managing status, you can define DVIPA filters to eliminate some DVIPAs from the list. Click on the DVIPA Filters link to view and update the DVIPA status filters.
DVIPA IP Address
Displays the DVIPA TCP/IP address.
System Name
Displays the hostname of the TCP/IP stack.
TCP/IP Job Name
Displays the TCP/IP procedure name that was used to start TCP/IP.
Origin
Displays how the DVIPA was configured to the given TCP/IP stack. The origin can be one of the following:
An error occurred. | |
The VIPADYNAMIC VIPABACKUP profile statement was used to configure the given TCP/IP stack as a backup for the DVIPA. | |
The VIPADYNAMIC VIPADEFINE profile statement was used to configure the given TCP/IP stack as the owner of the DVIPA. | |
The DVIPA was dynamically defined when an application issued a BIND function call. | |
The DVIPA was dynamically defined when an application issued the SIOCSVIPA IOCTL function call. | |
The VIPADYNAMIC VIPADISTRIBUTE profile statement was used to configure the given TCP/IP stack as the target of the DVIPA for the Sysplex Distributor function. |
Status
Displays the status of the DVIPA on the given TCP/IP stack. Some of the status values may be displayed with background shading for ease in readability. The status can be one of the following:
An error occurred. | |
The given TCP/IP stack currently owns the DVIPA. | |
The given TCP/IP stack is currently a backup owner for the DVIPA. | |
The DVIPA was active for the TCP/IP stack but the ownership has transferred to another TCP/IP stack (for example, due to takeover). | |
The DVIPA is no longer a target but it still has connections. |
Mobility
Displays the manner in which a DVIPA IP address would be moved to another TCP/IP stack. The mobility can be one of the following:
Moveable status does not apply to the DVIPA. This value would be set for entries where backup is set as the value for the origin and status fields. | |
The DVIPA can be moved to another stack when the other stack requests ownership of the DVIPA by executing a VIPADEFINE for the same DVIPA. Any existing connections on this stack will be maintained by the new stack until the connections are closed. All new connection requests will be directed to the new stack. | |
The DVIPA can be moved to another stack when there are no connections on this stack for the DVIPA. Any new connection requests will continue to be directed to this stack until all of the connections are closed. | |
The DVIPA can be moved to another stack when the other stack requests ownership of the DVIPA by creating the same DVIPA with a BIND or SIOCSVIPA IOCTL. Any existing connections on this stack will be maintained by the new stack until the connections are closed. All new connection requests will be directed to the new stack. | |
One of two
different behaviors will occur:
|
Distributor Status
Displays the status of the DVIPA on the given TCP/IP stack in relation to the Sysplex Distributor function. Some of the status values may be displayed with background shading for ease in readability. Distributor Status can be one of the following:
The DVIPA is not participating in Sysplex Distributor function. | |
The stack is a sysplex distributor for the DVIPA. | |
The stack is a target for the DVIPA. | |
The stack is both a sysplex distributor and a target for the DVIPA. |
Service Manager
Displays the status of the DVIPA on the given TCP/IP stack in relation to the Service Manager function. The service manager can be one of the following:
The DVIPA is participating in the Service Manager function. | |
The DVIPA is not participating in the Service Manager function. |
Refresh Data/Refresh
If new data has been collected since the last time the page has been refreshed, select the Refresh Data button to update the data displayed. (Refer to the Last Refresh and Next Refresh fields for information on when the data was last polled and when it will be polled again.) Only one person/task can refresh the DVIPA status at a time. When refreshing is in progress the button will read "Refresh" instead of "Refresh Data". The browser message area will also indicate status to show that refreshing is in progress. Depending on the size of your sysplex and the amount of data being collected, refreshing may take up to four minutes to complete.
Last Refresh
Displays the date and time (GMT) the DVIPA Status information was last polled.
Next Refresh
Displays the date and time (GMT) the DVIPA Status information will be polled next.