Atalla Boxcar Reference Guide (G06.24+)

Atalla Boxcar Reference Guide—526564-005
6
AKB Version: 3.60C, Date: Feb 19 2009, Time:
15:43:34#80F4#0#>
\CHIP.$BOXB: 30APR2009 14:51:15 SEND : <9A#KEY#>
\CHIP.$BOXB: 30APR2009 14:51:15 RECV :
<AA#1000#MFK1#B196#T#PMFK1#8792#D#######>
\CHIP.$BOXB: 30APR2009 14:51:15 BOXCAR DEVICE HAS BEEN
INITIALIZED
\CHIP.$BOXB: 30APR2009 14:51:15 Boxcar established 14 of 14
sockets on 16.107.203.103 on port 7000
\CHIP.$BOXB: 30APR2009 14:51:16 BOXCAR Backup Process Created
OK
\CHIP.$BOXB: 30APR2009 14:51:16 BOXCAR Backup Process
Initialized.
Boxcar Backup Process
If you specify a backup process using BOXCAR-BACKUPCPU, Boxcar starts the
backup process and does a FILE_OPEN_CHKPT on all files opened by BOXCAR,
$RECEIVE, the Boxcar log, and the Atalla NSP, it then CHECKPOINTXs the data
stack. If there are errors on any of these operations, Boxcar writes an error message to
the Boxcar log and abends. If a non-existent CPU, or if a CPU that is down, has been
specified, Boxcar logs the error, logs that it is not running as a non-stop process and
continues without a backup process. If the backup process was not created because
the CPU was down, when that CPU is later restored, Boxcar receives a “CPU up”
message and attempts to create the backup process.
If a socket connection to the NSP fails to open when the Boxcar backup process takes
over, the Boxcar process will try five times to open the socket connection. A delay of
four seconds is added to each attempt to open the socket. The first attempt will occur
after one second. The second attempt will occur after five seconds. The third attempt
will occur after nine seconds. The fourth attempt will occur after 13 seconds. The final
attempt will occur after 17 seconds.
Sending an Echo Command to each socket
After opening the configured number of sockets, Boxcar attempts to communicate with
each open socket by sending it an echo command. If a communications error occurs or
the response is not correct, Boxcar resends the command two additional times. If
Boxcar is still unable to communicate with the socket, it closes the socket, logs the
error, and tries the next socket. If Boxcar is unable to communicate with any sockets, it
logs the error and terminates.
Carriage Return Line Feed appended to the NSP response
See BOXCAR-CRLF-REQUIRED.