MAP 2010: 7031-D24 or 7031-T24 START

This MAP is the entry point to the MAPs for the 7031-D24 or 7031-T24.

You might have been directed to this section because:

Attention: Do not remove power from the host system or 7031-D24 or 7031-T24 unless you are told to in the instructions that you are following. Power cables and external SCSI cables that connect the 7031-D24 or 7031-T24 to the host system can be disconnected while that system is running.
  1. Does the 7031-D24 or 7031-T24 emit smoke or is there a burning smell?

    NO
    Go to step 2.
    YES
    Go to isolates/m2022.dita#m2022.
  2. Are you at this MAP because power is not removed completely from the 7031-D24 or 7031-T24 when the host systems are switched off?
    Note:
    Power will remain on the 7031 for approximately 30 seconds after the last system is powered off.
    NO
    Go to step 3.
    YES
    Go to isolates/m2030.dita#m2030.
  3. Have you been sent to this MAP from an SRN?
    NO
    Go to step 4.
    YES
    Go to step 7.
  4. Have the system diagnostics or problem determination procedures given you an SRN for the 7031-D24 or 7031-T24?
    NO
    • If the system diagnostics for the 7031-D24 or 7031-T24 are available, go to step 5.
    • If the system diagnostics for the 7031-D24 or 7031-T24 are not available, but the stand-alone diagnostics are available, do the following:
      1. Run the stand-alone diagnostics.
      2. Go to step 6.
    • If neither the system diagnostics nor the stand-alone diagnostics are available, go to step 7.
    YES
    Go to the List of service request numbers which is available in the IBM(R) Systems Hardware Information Center.
    1. Run the concurrent diagnostics to the 7031-D24 or 7031-T24. For information about how to run concurrent diagnostics, see Loading and Using the AIX online diagnostics or the AIX standalone diagnostics which is available in the IBM Systems Hardware Information Center.
    2. When the concurrent diagnostics are complete, go to step 6.
  6. Did the diagnostics give you an SRN for the 7031-D24 or 7031-T24?
    NO
    Go to step 7.
    YES
    Go to the List of service request numbers which are available in the IBM Systems Hardware Information Center.
  7. Is the subsystem check LED flashing?
    NO
    Go to step 8.
    YES
    A device is in Identify mode. A power supply, SCSI card, or disk drive module is to be added or installed.
  8. Is the subsystem check LED on continuously?
    NO
    Go to step 12.
    YES
    Go to step 9.
  9. Does the power-supply assembly have its FLT LED on because its DC On/Off switch is set to Off?
    NO
    Go to step 10.
    YES
    1. Set the DC On/Off switch to On.
    2. If you still have a problem, return to step 2. Otherwise, go to isolates/m2410.dita#m2410 to verify the repair.
  10. Does any FRU have its Check or Fault LED on?
    Note:
    The check LED might be on any of the following parts:
    • A SCSI interface card assembly (CARD FAULT LED)
    • A power-supply assembly (FLT LED)
    • A fan assembly (CHK LED)
    • A disk drive module (CHK LED)
    NO
    In the following sequence, exchange the following FRUs for new FRUs. Ensure that for each FRU exchange, you go to isolates/m2410.dita#m2410 to verify the repair.
    1. SCSI interface card assembly (see the removal and replacement procedures for 7031-D24 or 7031-T24 SCSI disk drive enclosure features and parts), and select the appropriate part.
    2. Power supply (see the removal and replacement procedures for 7031-D24 or 7031-T24 SCSI disk drive enclosure features and parts), and select the appropriate part.
    3. Fan assembly (see the removal and replacement procedures for 7031-D24 or 7031-T24 SCSI disk drive enclosure features and parts), and select the appropriate part.
    4. Frame assembly (see the removal and replacement procedures for 7031-D24 or 7031-T24 SCSI disk drive enclosure features and parts), and select the appropriate part.
    YES
    1. If the FRU is a fan-and-power-supply assembly, go to step 11. Otherwise, exchange the FRU whose Check LED is on.
    2. Go to isolates/m2410.dita#m2410 to verify the repair.
  11. Is the enclosure set up for remote power control (that is, is the power control switch of the SCSI interface card assembly set to Off)?
    NO
    1. Exchange, for a new one, the power supply whose FLT LED is on, see the removing/replacing information for 7031-D24 or 7031-T24 SCSI disk drive enclosure features and parts), and select Power supply.
    2. Go to isolates/m2410.dita#m2410 to verify the repair.
    YES
    1. Ensure that:
      • The DC On/Off switch is set to On.
      • Both ends of the SCSI cable are correctly connected.
      • The host system is switched on.
    2. If the FLT LED of a power supply is still on, pull out the power supply to disconnect it from the 7031-D24 or 7031-T24, then push it back to reseat its connectors (see the removal and replacement procedures for 7031-D24 or 7031-T24 SCSI disk drive enclosure features and parts).
    3. If the FLT LED is still on, exchange, in the sequence shown, the following FRUs for new FRUs. Ensure that for each FRU exchange, you go to isolates/m2410.dita#m2410 to verify the repair.
      1. Power supply whose FLT LED is NOT on, (see the removal and replacement procedures for 7031-D24 or 7031-T24 SCSI disk drive enclosure features and parts), and select Power supply.
      2. SCSI interface card
      3. Frame assembly
  12. Is the subsystem power LED on?
    NO
    Go to isolates/m2020.dita#m2020.
    YES
    Go to step 13.
  13. Does either power supply assembly have its DC PWR LED off when it should be on?
    NO
    Go to step 14.
    YES
    1. Exchange the power-supply assembly whose LED is off.
    2. Go to isolates/m2410.dita#m2410 to verify the repair.
  14. Are you here because access to all the SCSI devices that are in the 7031-D24 or 7031-T24 has been lost?
    NO
    No problem has been found on the 7031-D24 or 7031-T24. For a final check, go to isolates/m2410.dita#m2410.
    YES
    Go to isolates/m2340.dita#m2340.