Kohzo Momose
2007-05-29 05:12:46 UTC
I would like to make sure the function of mpc sweeptimer.
EN NN
CS/AIX V6.1 ----(APPN/ISR over MPC)---- z/OS V1R6
When the zOS was hung up because of the high CPU usage,
CP-CP session was terminated by the following reason.
1. errpt -a
LABEL: MPC_MISC_FAILURE
Date/Time: Wed May 23 06:09:24
Node Id: JMKWBK01
Class: S
Type: UNKN
Resource Name: MPC
Description
SOFTWARE
Probable Causes
SOFTWARE PROGRAM
Detail Data
DETECTING MODULE
File: mpcgroup.C Fn: sweepTimerPop Ln: 3205
GROUP
sna-mpcg11
DESCRIPTION
No response to previous sweep
2./var/sna/sna.err
06:09:24 JST 23 May 2007 1536-17(0-10) E (JMKWBK01)
Link Station mpclink has been remotely disconnected.
06:09:24 JST 23 May 2007 512-60(0-10) P (JMKWBK01)
An active link station has failed.
Port name = mpcport
LS name = mpclink
Adjacent CP name = JRCNET.HH01CP
3. zOS Syslog ( because of the high cpu usage, the time stamp was probably
delayed)
06:10:57 IST1097I CP-CP SESSION WITH JRCNET.CWEBK01 TERMINATED
06:10:57 IST1280I SESSION TYPE = CONWINNER - SENSE = 80020000
06:10:57 IST314I END
06:10:57 IST1578I SOFT INOP DETECTED FOR TWEBK011 BY ISTTSC8E CODE = 204
SENSE 80020000 means Data Link Failure.
I think the network flow would be
CS/AIX device driver channel VTAM
write Hung
Up
------------------->
sweeptimer expired
Device End
-------------------->
simulate disconnect
<-------- ------->IST1578I INOP
CP-CP terminated
Question:
1. What is sweeptimer ? Is it response timer ? and Is there idle timer ?
2. How long does the timer ?
3. When sweeptimer expired, what signals does the driver send to CS/AIX and
HOST side ?
4. sna.err said "LS has been remotely disconnected."
In our case, does this mean CS/AIX received disconnect signal from the
AIX mpc device driver
because of the sweeptimer expiration ? or it exactly received DISC from
VTAM side ?
Thank you for your help,
Kohzo Momose IBM-Japan
EN NN
CS/AIX V6.1 ----(APPN/ISR over MPC)---- z/OS V1R6
When the zOS was hung up because of the high CPU usage,
CP-CP session was terminated by the following reason.
1. errpt -a
LABEL: MPC_MISC_FAILURE
Date/Time: Wed May 23 06:09:24
Node Id: JMKWBK01
Class: S
Type: UNKN
Resource Name: MPC
Description
SOFTWARE
Probable Causes
SOFTWARE PROGRAM
Detail Data
DETECTING MODULE
File: mpcgroup.C Fn: sweepTimerPop Ln: 3205
GROUP
sna-mpcg11
DESCRIPTION
No response to previous sweep
2./var/sna/sna.err
06:09:24 JST 23 May 2007 1536-17(0-10) E (JMKWBK01)
Link Station mpclink has been remotely disconnected.
06:09:24 JST 23 May 2007 512-60(0-10) P (JMKWBK01)
An active link station has failed.
Port name = mpcport
LS name = mpclink
Adjacent CP name = JRCNET.HH01CP
3. zOS Syslog ( because of the high cpu usage, the time stamp was probably
delayed)
06:10:57 IST1097I CP-CP SESSION WITH JRCNET.CWEBK01 TERMINATED
06:10:57 IST1280I SESSION TYPE = CONWINNER - SENSE = 80020000
06:10:57 IST314I END
06:10:57 IST1578I SOFT INOP DETECTED FOR TWEBK011 BY ISTTSC8E CODE = 204
SENSE 80020000 means Data Link Failure.
I think the network flow would be
CS/AIX device driver channel VTAM
write Hung
Up
------------------->
sweeptimer expired
Device End
-------------------->
simulate disconnect
<-------- ------->IST1578I INOP
CP-CP terminated
Question:
1. What is sweeptimer ? Is it response timer ? and Is there idle timer ?
2. How long does the timer ?
3. When sweeptimer expired, what signals does the driver send to CS/AIX and
HOST side ?
4. sna.err said "LS has been remotely disconnected."
In our case, does this mean CS/AIX received disconnect signal from the
AIX mpc device driver
because of the sweeptimer expiration ? or it exactly received DISC from
VTAM side ?
Thank you for your help,
Kohzo Momose IBM-Japan