Which dbmcli command is NOT valid on Exadata X9M?

Question

Options

• Adbmcli -e "LIST METRICHISTORY WHERE name LIKE 'DS_.*'"
• Bdbmcli -e "LIST METRICCURRENT WHERE name = 'DS_TEMP' "
• Cdbmcli -e "LIST IBPORT DETAIL"
• Ddbmcli -e "LIST ALERTHISTORY WHERE agelnMinutes < 15"

• A
  11% (5)
• B
  26% (12)
• C
  57% (26)
• D
  7% (3)

Explanation

Option C specifies LIST IBPORT, which references InfiniBand ports - but Exadata X9M replaced InfiniBand interconnects with RoCE (RDMA over Converged Ethernet), making any IB-specific dbmcli commands invalid on that platform. Options A and B are valid because LIST METRICHISTORY and LIST METRICCURRENT are standard dbmcli metric query commands that work across Exadata generations, including X9M. Option D is also valid - LIST ALERTHISTORY with a time-based filter like agelnMinutes is a supported query on X9M storage cells.

Memory tip: Think "X9M = eXited InfiniBand" - the X9M generation is the one where Oracle switched from IB to RoCE, so any command with "IB" in it is a red flag on X9M hardware.

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