SL3000/SL8500 - How to Recover Library Communication After Library Controller Stops Communicating

(Doc ID 1377164.1)

Last updated on MAY 19, 2017

Applies to:

Sun StorageTek SL8500 Modular Library System - Version: Not Applicable to Not Applicable - Release: N/A to N/A
Sun StorageTek SL3000 Modular Library System - Version: Not Applicable to Not Applicable   [Release: N/A to N/A]
Information in this document applies to any platform.

Symptoms

The following scenario is the most likely you will encounter in a MVS shop.
Network becomes very busy Host issues a SHPG command.
Library send acknowledgement back to the host.
Host does not received it in the allowable time resulting in a timeout.
This causes the host to drop port connection.
In turn the Library closes the socket connection.

See the following Library and System log entries:
SYSD 11310 18:45:37.28 00000090 .SLS6005I NETWORK ATTACH FUNCTION INITAPI FAILED FOR STATION 10.1.0.100
WITH ERRNO 10,218
SYSD 11310 18:45:57.19 00000281 IEF196I,.SLS6012E,ACS 00: RECOVERY OF NETWORK CONNECTION TO STATION
SYSD 11310 18:45:57.19 00000281 IEF196I 10.2.0.100 IS NOW ACTIVE
SYSD 11310 18:45:57.21 00000281 IEF196I .SLS1000I ACS 00 STATUS: DISCONNECT
SYSD 11310 18:45:57.21 00000281 IEF196I COMPATIBILITY LEVELS: HSC=21, LMU=00
SYSD 11310 18:45:57.21 00000281 IEF196I DUAL LMU NOT CONFIGURED
SYSD 11310 18:45:57.21 INTERNAL 00000090 .SLS1000I ACS 00 STATUS: DISCONNECT 636
636 00000090 COMPATIBILITY LEVELS: HSC=21, LMU=00
636 00000090 DUAL LMU NOT CONFIGURED
636 00000090 IP ADDR 10.1.0.100 NETWORK RECONNECT
636 00000090 IP ADDR 10.2.0.100 NETWORK RECONNECT
SYSD 11310 22:55:03.93 INTERNAL 00000290 .VARY,ACS,00 ONLINE
SYSD 11310 22:55:03.94 INTERNAL 00000090 .SLS0000I VARY ACS 00 ONLINE
SYSD 11310 22:55:03.94 00000281 IEF196I .SLS0000I VARY ACS 00 ONLINE


SYSD 11310 22:56:44.50 00000090 .SLS0653I SHPG OF,STATION,DEVICE 10.2.0.100 FAILED - NOP FAILED
SYSD 11310 22:56:44.50 00000281 IEF196I .SLS0653I SHPG OF STATION DEVICE 10.2.0.100 FAILED - NOP FAILED
SYSD 11310 22:56:44.51 00000090 .SLS0453I LMU ERROR 65936593 VARYING STATION 0000 ONLINE
SYSD 11310 22:56:44.51 00000281 IEF196I .SLS0453I LMU ERROR 65936593 VARYING STATION 0000 ONLINE
SYSD 11310 22:56:44.51 INTERNAL 00000090 .SLS0057I UNKNOWN RC 65936593 FROM LMURQST
SYSD 11310 22:56:44.51 00000281 IEF196I .SLS0057I UNKNOWN RC 65936593 FROM LMURQST
SYSD 11310 22:56:45.30 SYSD0010 00000290 .D ACS
SYSD 11310 22:56:45.30 INTERNAL 00000090 .SLS0000I D ACS
SYSD 11310 22:56:45.30 00000281 IEF196I .SLS0000I D ACS
SYSD 11310 22:56:45.41 SYSD0010 00000090 .SLS1000I ACS 00 STATUS: DISCONNECT 197
197 00000090 COMPATIBILITY LEVELS: HSC=21, LMU=00
197 00000090 DUAL LMU NOT CONFIGURED

This will also cause the LSM's to not come ready and tape drives to not vary online.

Changes

na

Cause

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