Administration
Querying the Gateway
All the sessions for a particular connection are listed together and only the first session has the Server ID, Client IP Addr, and Client ID specified. For a given client, one session at most will have an operation pending or in progress at a given time.
The Client IP Addr and Client ID are both needed to uniquely identify a client connection. In the previous example, clients 1 and 3 are separate processes on the same machine (that is, they have the same Client IP Addr).
If an Operation is specified for a given session and the session does not have a Lock, the operation for the session may be waiting for another client to complete an I/O operation or to unlock a device or the interface. In the previous example, client 2 is waiting to get a lock on device 21 after client 1 completes the WRITE operation and unlocks device 21. Also, client 3 is waiting for client 2 to unlock device 9,2 (primary,secondary) before it can perform the READ operation.
If an Operation is specified for a given session and the session does have a Lock, the operation is likely to be in progress and not waiting on another client to complete an operation. For more information, consult the documentation for your I/O application software on how interface locks and device locks work in your software.
The following is a list of Operation field values and the SICL functions that correspond to them. If you want to terminate the client connections, see “Terminating Client Connections”.
Operation | SICL Function |
|
|
ATNCTL | igpibantctl |
|
|
BUSADDR | igpibbusaddr |
|
|
BUSSTAT | igpibbusstatus |
|
|
CLEAR | iclear |
|
|
CLOSE | iclose |
|
|
GETDEV | igetdevaddr |
|
|
GETINTF | igetintftype |
|
|
GETLU | igetlu |
|
|
GETSESS | igetsesstype |
|
|
Chapter 4 | 73 |
