ACSLS - SL8500 Dual-TCP Port 2a Cannot be Varied Online

Asset ID:	1-72-1308248.1
Update Date:	2012-09-14
Keywords:

Solution Type Problem Resolution Sure

Solution 1308248.1 : ACSLS - SL8500 Dual-TCP Port 2a Cannot be Varied Online

Applies to:

Sun StorageTek Auto Cartridge Sys Lib SW (ACSLS) - Version 7.1 to 8.0 [Release 7.0 to 8.0]
Sun StorageTek SL8500 Modular Library System - Version Not Applicable and later
Information in this document applies to any platform.
Checked for relevance on 14-Sept-2012.

Symptoms

1. SL8500 Dual-TCP feature is enabled.   ACSLS is only communicating to the SL8500 using port 2b.
   query lmu all shows that port 2a is in an offline state. Example of query lmu all output:

     ACSSA> query lmu all
     2011-03-25 21:39:34 LMU Status
       ACS: 0 Mode: Single LMU Master Status: Communicating
       Not Partitioned Standby Status: -

                    ACS State   Desired State
                    online           online

       Port      Port State     Desired State   Role CL
       0, 0       offline           online                -    -     sl8500-2a
       0, 1       online           online                -   22   sl8500-2b

2.   Cannot vary port 2a online in ACSLS. These are the error messages in the acsss_event.log during the
      vary event:
      2011-03-24 14:40:06 VARY[31769]:
      2166 I va_prt_updt.c 1 360
      Desired state for Port 0, 0 set to STATE_ONLINE.

      2011-03-24 14:40:06 VARY[31769]:
      546 N cl_log_lh_er.c 1 99
      va_lh_response: LH error type = LH_ERR_PORT_CONNECT

      2011-03-24 14:40:06 VARY[31769]:
      146 N va_prt_updt.c 1 713
      va_prt_updt: Unexpected status STATUS_LIBRARY_FAILURE detected

3.   testlmutcp fails with a "connection refused" error:
      $ testlmutcp 111.11.111.11
   Connect failed on PortName 111.11.11.11, port 50001
   errno = 146, Connection refused

4. ping to port 2a from ACSLS server works. traceroute also works.

5. There is a firewall between ACSLS and port 2a.

Changes

Some library maintenance was done, like replace a robot.
Possible network configuration changes may have happened but cannot be confirmed.

Cause

Any of these could have caused the port 2a to go offline:
1. Possible problem with the network routing of data between the library TCP port and ACSLS.
2. The outgoing HLI response packets from port 2a are getting blocked by the firewall.

Solution

1. Make sure that ports 50001 thru 50016 are open in the firewall.
2. Make sure that traceroute works both ways between ACSLS and the library TCP port.

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