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Slave Abends When Master LAN Cable is Pulled

(Last modified: 23Oct2002)

This document (10057437) is provided subject to the disclaimer at the end of this document.

fact

Novell NetWare 5.0

Novell NetWare 5.1

NetWare Cluster Services v.1.01 Update (NWCSUPD1.EXE)

2 node Cluster

symptom

Abend:  EIP in VLL.NLM

Abend:  Ate Poison Pill in SbdWriteNodeTick given by some other node.

Running process: VLL_EventThread Process.

Slave server always abends whenever Slave or Master's LAN cable is pulled.

cause

Novell Clustering relies on the LAN driver to update certain statistics to determine which server still has connectivity to the LAN, and thus can support client access to Cluster volumes and any other clustered resource.

fix

Here are the statistics that Clustering depends on being updated immediately to be of use.  These can be viewed in MONITOR | LAN/WAN DRIVERS:
    1.  Generic Counters:  Total packets and Bytes transmitted shows successful transmission.
    2.  Ethernet Counters:  "Transmit Failed, Carrier Sense Missing" shows if the ethernet cable is still connected.
    3.  Custom Counters:  We don't monitor these counters, but still they will show if the link is good.

Of the above counters, the most important one is #2.  If the "Transmit Failed, Carrier Sense Missing" does not immediately start incrementing when the LAN cable is pulled, the LAN driver is not sufficient to support clustering.  If you are seeing the above symptoms with NWCSUPD1.EXE applied, swap your drivers first for later dated ones, or swap the physical NIC in the server for one that has been tested and approved to work with Novell Clustering Services.

If you are using either N100.LAN or CE100B.LAN driver, there is an updated Intel driver which corrects the "Transmit Failed, Carrier Sense Missing" problem.  Please download CE100FT.EXE from SUPPORT.NOVELL.COM.

disclaimer

The Origin of this information may be internal or external to Novell. Novell makes all reasonable efforts to verify this information. However, the information provided in this document is for your information only. Novell makes no explicit or implied claims to the validity of this information.
Any trademarks referenced in this document are the property of their respective owners. Consult your product manuals for complete trademark information.

  • Document ID:
  • 10057437
  • Solution ID: NOVL28476
  • Creation Date: 04Oct2000
  • Modified Date: 23Oct2002
    • NovellConnectivity Products

      NetWare

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