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

SSA RAID ADAPTER RESTRICTED to RAID 5 with OVER 2GB OF RAM

    Record number:       H165049
    Device:              D/T8651
    Model:               M
    Hit count:           UHC00000
    Success count:       USC0000
    Publication code:    PC50
    Tip key:
    Date created:        O98/10/13
    Date last altered:   A98/10/28
    Owning B.U.:         USA


Abstract: SSA RAID ADAPTER RESTRICTED to RAID 5 WITH OVER 2GB OF RAM

SYMPTOM:

System crash (including NT bluescreen or NetWare abend), system hang, garbled video, other unpredictable results.

PROBLEM ISOLATION AIDS:

•  The system is any PC Server, Netfinity Server, or OEM Intel Server which supports SSA.
•  The system is configured with one or more of the following

    SSA adapters:

  •  Option P/N 32H3811, FC4011, or FRU 32H3811.
  •  Option P/N 96H9835, FC4012, or FRU 02L7644.

•  The system uses one or more of the following capabilities of the SSA adapters:
  •  JBOD (single disks), RAID 0, and/or RAID 1 on Option P/N 32H3811, FC4011, or FRU 32H3811.
  •  JBOD and/or RAID 1 on Option P/N 96H9835, FC4012, or FRU 02L7644.
  •  The system has more than 2GB of supported RAM installed.

   Systems which currently support both SSA and more than 2 GB of RAM include:

  •  IBM Netfinity 7000 and Netfinity 7000 M10
  •  Compaq ProLiant 5000 and ProLiant 6000
  •  HP NetServer LX Pro and LXr Pro
     (note: Support of SSA on non-IBM hosts requires Windows NT)

•  The system is using one of the following Network Operating Systems:
  •  Windows NT
  •  Novell NetWare and intraNetWare
  •  OS/2

  •  Diagnostics pass.

FIX:

This restriction will be removed in a future SSA RAID adapter.

WORKAROUND:

•  For the IBM SSA RAID Adapter for PC Servers (32H3811 / FC4011 / FRU 32H3811), restrict use to RAID 5 or  reduce server memory to 2 GB.
•  For the IBM SSA RAID Cluster Adapter (96H9835 / FC4012 / FRU 02L7644), reduce server memory to 2 GB.

DETAILS:

A 2 GB memory limit shall be observed on all servers with the IBM SSA RAID Adapter for PC Servers (except RAID 5 use) or IBM SSA RAID Cluster Adapter installed.
On server systems with greater than 2 GB of memory installed, the use of either:

1.  JBOD (single disks), RAID 0, or RAID 1 on the SSA RAID Adapter for PC Servers,

     -- or --

2.  JBOD or RAID 1 on the SSA RAID Cluster Adapter will cause unpredictable results and is not supported by IBM.

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