IBM-AUSTRIA - PC-HW-Support    30 Aug 1999

First Actions to be Performed On Service Call with DDD Drives

1.  Pull ServeRAID Administration Log created by IPSMON utility or Netfinity  Manager. IPSMON can be obtained from the PC ServeRAID Supplemental Diskette  Version on IBM web site http://www.us.pc.ibm.com/files.html . Search on  'ServeRAID'
2.  View Configuration with ServeRAID Administration and Monitoring Utility,  ServeRAID Configuration utility if operating system is not functional, or RAID  Netfinity Manager to determine whether HSP was present in the system or not. If any  of the drives indicate DHS status, then an HSP drive was definitely present in the  system.
3.  View ServeRAID Device Event Table by either clicking on specific ServeRAID  Adapter in the Administration and Monitoring Utility and selecting Device Event  Log. Or you may view the Error Counters for each drive with RAID Netfinity  Manager. If the operating system is not functional, you may boot the ServeRAID  Configuration Diskette and view the device errors by selecting Display Drive  Information for each drive under Rebuild/Device Management.

•  Hard Events - The number of SCSI I/O processor errors that occurred on the  drive since the Device Error Table was last cleared. It also  indicates if the drive exceeded Predictive Failure Analysis (PFA)  threshold.
•  Action:  Contact your support representative for further problem  determination.

•  Soft Events - The number of SCSI Check Condition status messages returned  from the Drive (except Unit Attention) since the Device Error  Table was last cleared.
•  Action: 

   1. If HSP is present, follow procedures in the section:
    Recovery Procedures when HSP is Present at Time of Failure
   2. If HSP is not present, follow procedures in the section:
    Recovery Procedures When HSP is Not Present at Time of Failure

•  Miscellaneous Events - The number of other errors (such as selection timeout,  unexpected bus free, or SCSI phase error) that occur on the  drive since the Device Error Table was last cleared.
•  Action:  Ensure cabling and connectors are seated properly. If backplane,  ensure backplane is not bowed causing poor drive connection. If  there are no problems with cable, backplane, etc., determine  whether HSP drive is present or not and follow appropriate  Recovery Procedures listed below but do not software replace the  drive. Physically replace the drive.

•  Parity Events - The number of parity errors that occurred on the SCSI bus since  the Device Error Table was last cleared.
•  Action:  Check to ensure SCSI bus is properly Terminated with one and  only one Active Terminator placed at the end of the SCSI Chain. If  a backplane is the last device on the chain, then the backplane  terminates the bus as long as no cable is plugged into the  daisy-chained connector on the backplane.

•  PFA Events - Predictive Failure Analysis
•  Action:  Determine whether HSP drive is present or not and follow  appropriate Recovery Procedures listed below, but do not software  replace the drive. Physically replace the drive.

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