Linux Server Hacks, Volume Two: Tips & Tools for Connecting, Monitoring, and Troubleshooting
This command cancels a previous outstanding command. The ncb_buffer field points to the NCB structure with the operation that you want canceled. Canceling an NCBSEND or NCBCHAINSEND command aborts the session; however, aborting their no-ack variants does not cancel their respective sessions. The following commands cannot be canceled: NCBADDGRNAME, NCBADDNAME, NCBCANCEL, NCBDELNAME, NCBRESET, NCBDGSEND, NCBDGSENDBC, and NCBSSTAT.
| Field | In/Out | Required |
|---|---|---|
| ncb_command | IN | X |
| ncb_retcode | OUT | |
| ncb_lsn | ||
| ncb_num | ||
| ncb_buffer | IN | X |
| ncb_length | ||
| ncb_callname | ||
| ncb_name | ||
| ncb_rto | ||
| ncb_sto | ||
| ncb_post | ||
| ncb_lana_num | IN | X |
| ncb_cmd_cplt | OUT | |
| ncb_event |