MAP7000 Entry point For storage facility private network problems

This MAP provides guidance on repairing all network problems with the storage facility private network.

MAP7000 Section-1

Procedure

  1. Private network problems can be caused by management console (HMC) or CEC enclosure problems or UPS (Model 983 only) that directly or indirectly affect their Ethernet ports.

    Display open serviceable events and repair any that might be related before you go to the next step.

  2. If the storage complex has two active HMCs (primary MC 1 and secondary MC 2), ensure that you have displayed open serviceable events on both HMCs.
    Serviceable events with the following SRCs are displayed only on the HMC that created them; they are not replicated on the other HMC:
    • BE17xxxx
    • BEB0001x
    • BEB10012
    • BEB20010
    • BEB20020
    • BEB20021
    • BEFxxxxx
    • Exxxxxxx
  3. Use Table 1 to find your purpose for using this MAP.
    Table 1. Entry for storage facility private network problems
    Purpose Go to:
    You were sent here to use the Network Topology Tool to verify the connectivity of both storage facility private networks (gray and black) MAP7001 Using the network topology tool
    You were sent here from a serviceable event with an SRC (system reference code) MAP7000 Section-2 Using an SRC
    You were sent here from another MAP to verify network connectivity MAP7000 Section-3 Visual Checks
    You have a visual symptom MAP7000 Section-3 Visual Checks
    The customer cannot remotely access the management console MAP6730 Customer access to management console problem

MAP7000 Section-2 Using an SRC

Procedure

  1. Determine the SRC in the serviceable event that sent you to this MAP.
  2. Select the rack model that applies:
  3. At the rear of each CEC enclosure managed by this HMC, check the input power LEDs of both CEC enclosure power supplies.

    Is at least one input power LED lit for each CEC?

  4. At the rear of each CEC enclosure managed by this HMC, ensure that the private network Ethernet cables are connected.
    • Models 921/931, 922/932, 9A2/9B2, see step 4.a.
    • Models 941, 951, see step 4.b.
    • Model 961, see step 4.c.
    • Models 980, 983, and 984, see step 4.d.
    • Models 981, 985, 986, see step 4.e.
    • Models 982, 988, see step 4.f.
    1. For models 921/931, 922/932, and 9A2/9B2 see Figure 1.
      • CEC enclosure service processor (FSP), black cable to P1-C8-T1 and gray cable to P1-C8-T2.
      • CEC enclosure integrated Ethernet ports on the I/O planar for base LPAR, black cable to P1-T6, and gray cable to P1-T7.
      • CEC enclosure Ethernet ports on PCI Ethernet card (only on models 9A2/9B2, with two LPARs per CEC), black cable to P1-C4-T1 and gray cable to P1-C4-T2.
      Figure 1. CEC Ethernet ports (Models 921/931, 922/932, 9A2/9B2)
      CEC Ethernet ports
    2. For Model 941and Model 951 see Figure 2.
      • CEC enclosure service processor (FSP), black cable to P1-C11-T3 and gray cable to P1-C11-T4.
      • CEC enclosure integrated Ethernet ports on the CEC enclosure VPD pass-through card, black cable to P1-C10-T1, and gray cable to P1-C10-T2.
      Figure 2. CEC Ethernet ports (right rear of CEC - Model 941)- Models 941 and 951
      CEC Ethernet ports (right rear of CEC)
    3. For Model 961, see Figure 3.
      • CEC enclosure Ethernet ports (service processor), black cable to P1-T5 and gray cable to P1-T6.
      • CEC enclosure Ethernet adapter (LPAR), black cable to P1-C2-T1, and gray cable to P1-C2-T2.
      Figure 3. CEC enclosure location codes, rear view (Model 961)
      Location codes for the CEC enclosure (rear view) (Models 961)
    4. For Models 980, 983, and 984, see Figure 4.
      • CEC enclosure Ethernet ports (service processor), black cable to P1-T1 and gray cable to P1-T2.
      • CEC enclosure Ethernet adapter (LPAR), black cable to P1-C10-T1, and gray cable to P1-C10-T2
      Figure 4. CEC enclosure location codes (rear view) (Models 980 and 984)
      CEC enclosure location codes (rear view)
    5. For Models 981, 984, and 985, see Figure 5.
      • CEC enclosure Ethernet ports (service processor), black cable to P1-T3 and gray cable to P1-T4.
      • CEC enclosure Ethernet adapter (LPAR), black cable to P1-C10-T1, and gray cable to P1-C10-T2.
      Figure 5. CEC enclosure location codes (rear view) (Models 981, 985, and 986)
      CEC enclosure location codes (rear view)
    6. For Models 982 and 988, see Figure 6.
      • CEC enclosure Ethernet ports (service processor), black cable to P1-C5-T4 and gray cable to P1-C5-T5.
      • CEC enclosure Ethernet adapter (LPAR), black cable to P1-C11-T1 and gray cable to P1-C11-T2.
      Figure 6. CEC enclosure location codes (rear view) (Models 982, 988)
      CEC enclosure location codes (rear view) (Model 982)
  5. Select the following condition that applies:
    • All rack models except 983, go to the next step.
    • Model 983, go to step 7.
  6. At the rear of each Rack-1 managed by this HMC, ensure that the private network Ethernet cables are connected to the Ethernet switches. Then go to step 9.
    See the following figures:
    • Models 921/931, 922/932, 9A2/9B2 with 16-port Ethernet switches: Figure 7.
    • Models 941, 951 with 8-port switches: Figure 8.
    • Model 951, 961 with 8-port switches: Figure 9.
    • Models 98x with 8-port switches: Figure 10.
    Figure 7. 16-port Ethernet switch port designations (SW1, SW2 - Tx) - Models 921/931, 922/932, 9A2/9B2
    Ethernet switch port designations (SW1, SW2 - Tx)
    Figure 8. 8-port Ethernet switch port designations (SW1, SW2-Tx) Models 921/931, 922/932, 9A2/9B2
    8-port Ethernet switch port designations (SW1, SW2-Tx)
    Figure 9. 8-port Ethernet switch port designations (SW1, SW2-Tx) Model 941, Model 951, and Model 961
    8-port Ethernet switch port designations (SW1, SW2-Tx)
    Figure 10. 8-port Ethernet switch port locations, Model 98x
    Note: Upper switch SW1 is "black" network; lower switch SW2 is "gray" network.
    8-port Ethernet switch port locations, Model 98x
    Note for Models 98x:

         The primary HMC (HMC1) connects to SW1-T8 and SW2-T8. The secondary HMC (HMC2) connects to SW1-T7 and SW2-T7.

         SW1-T3 to upper CEC upper FSP ("HMC1") connection
         SW1-T4 to lower CEC upper FSP ("HMC1") connection
         SW1-T5 to upper CEC upper LPAR connection (XC1-C10-T1)    
         SW1-T6 to lower CEC upper LPAR connection (XC2-C10-T1)

         SW2-T3 to upper CEC lower FSP ("HMC2") connection
         SW2-T4 to lower CEC lower FSP ("HMC2") connection
         SW2-T5 to upper CEC lower LPAR connection (XC1-C10-T2)
         SW2-T6 to lower CEC lower LPAR connection (XC2-C10-T2)  

  7. At the front of the rack containing the Model 983, slide the management enclosure (see Figure 11) out to the service position and remove the top cover.
    Note: The management enclosure is below the two CEC enclosures.
    1. Fully loosen the left and right captive thumb screws.
    2. Slide the management out fully so the sliding rails lock into place.
    3. At the rear of the top cover, fully loosen the left and right captive thumb screws.
    4. Slide the cover back until it will lift off.
    Figure 11. Management enclosure (front)
    Front of Management enclosure (Model 983)
  8. At the management enclosure:
    1. Ensure that the private network Ethernet cables are connected to the rear of both Ethernet switches, the inside and outside of the rear bulkhead connectors. See Figure 12, Figure 13, Figure 14, and Figure 15.
    2. Go to step 9.
    Note: To access the rear of the lower Ethernet switch, you can remove the hold down bracket for the upper Ether switch and pivot it up out of the way. The Ethernet and power cables are long enough to allow this to be done with the switch in use.
    Figure 12. Management enclosure Ethernet cables, top view
    Management enclosure Ethernet cables, top view
    Figure 13. Management enclosure Ethernet cables, rear view standing at front of rack while looking down
    Management enclosure Ethernet cables, top view
    Figure 14. Management enclosure rear view
    Management enclosure rear view
    Figure 15. Ethernet switch, LEDs and connectors, rear view (Model 983)
    Ethernet switch, rear (Model 983)
  9. Not including the serviceable event that sent you here, are there any open serviceable events for the CEC, HMC, or Ethernet switches that are related to the private network?
    • Yes, exit this MAP and repair them now. After you have made the repairs, return to MAP7000 Section-1 to determine if the problem that sent you here has already been corrected.
    • No, continue to the next step.
  10. Is the SRC = BE193001?
    • No, it is most likely safe to delay the repair of any open serviceable event that is not related to the private network. Go to MAP7000 Section-3 Visual Checks.
    • Yes, continue at step 11.
  11. Close all open BE193001 Service events.
  12. Reboot this HMC.
  13. Wait 20 minutes for the HMC to initialize; then log in, and return to this step.
  14. Are there any new open BE193001 Service events?

MAP7000 Section-3 Visual Checks

About this task

Perform the visual checks that are specified in Table 2. If you find problems, take the action that is indicated.

Procedure

Use Table 2 to check each storage facility that is managed by this HMC.
Table 2. Visual checklist
Visual Check Action
If one or both internal Ethernet switches in this storage complex are not powered on, see the Action column.
Note: For Model 983, at the front of the rack, the Management enclosure must be out in the service position with the top cover removed to observe the LEDs. The enclosure can be moved to the service position concurrent with customer activity.
Go to MAP2350 Ethernet switch power problem.
If the CEC enclosure power supplies at the rear of each CEC enclosure do not have the green 'Input power' LEDs lit, see the Action column.
Note: A CEC enclosure will operate normally with only one of its two power supplies having 'Input power' LED lit. If only one power supply is failing, an open serviceable event should be present.
 If a single CEC enclosure is failing:
  1. Check that the CEC enclosure power supply black input cables are connected.
  2. Refer to MAP4970 SRCs that require next level of support or special repair actions, Table 1, for SRC BE1E2551, even if no serviceable events exist with SRC BE1E2551.
  3. If there are no problems, contact your next level of support.
If both CEC enclosures are failing:
  1. Check that the CEC enclosure power supply black input cables are connected.
  2. Check that the UEPO switch is enabled. (Not for Model 983.)
  3. Check that customer AC input is available. The primary power supplies should indicate AC Input Good.
  4. If there are no problems, contact your next level of support.
At the front of the rack, observe each CEC enclosure control panel. The normal indication is:

01             N     V=F
HMC=1             P
If an SRC or other status is displayed, see the Action column.		 If the service processor panel is blank, go to MAP4100 Repairing a service processor (FSP) problem.

If an SRC is displayed, go to System reference codes overview.
At the front of the rack, observe the CEC enclosure processor regulator cards, which are to the left of the boot drives (not for rack models 96x, 97x, 98x). If the green LEDs are not lit, see the Action column. Use the management console to power on the storage facility. See MAP1211 Controlling the storage facility power from the management console.
(Does not apply for model 983.) Check the Ethernet switch ports that have cables connected that exit the rack and go to an external HMC or another storage facility. If the port LEDs are not lit properly, see the Action column. Go to MAP7000 Section-4 Problem with an external connection.
Check the Ethernet switch ports that have cables that are connected from the switch to the internal HMC. For both the 16-Port Ethernet switch and 8-Port Ethernet switch, check the T1 ports. If the port LEDs are not lit properly, see the Action column.
  • If Rack-1 has 16-port Ethernet switches, see Figure 7.
  • If Rack-1 has 8-port Ethernet switches, see Figure 8 or Figure 9.

For 983, both the primary and secondary (if present) HMCs are internal. Check the T7 ports for HMC1 and T8 ports for HMC2. See Figure 15.

For Model 98x (not 983), both the primary and secondary (if present) HMCs are internal. Check the T8 ports for HMC1 and T7 ports for HMC2. See Figure 10.
  1. Inspect the Ethernet cables and connectors. Reseat any connection where the Ethernet port LED is not lit properly.
  2. If there is a USB-to-Ethernet adapter on the Black network, and the Ethernet port LED is not lit properly, reseat the USB connector on the internal HMC.
  3. If there is a USB-to-Ethernet adapter on the Gray network, and the Ethernet port LED is not lit properly, reseat the USB connector on the internal HMC.
  4. If the problem is not resolved, contact your next level of support.
None of the visual checks that are listed in this table apply. Go to MAP7001 Using the network topology tool.
Figure 16. Connectivity between storage facilities for HMCs using both 16-port Ethernet switches
Connectivity between storage facilities for HMCs using both 16-port Ethernet switches
Figure 17. 8-port Ethernet switch ports used for cables exiting the storage facility
8-port Ethernet switch ports used for cables exiting the storage facility
Figure 18. Connectivity between storage facilities for HMC and both 8-port Ethernet switches
Connectivity between storage facilities for HMC and both 8-port Ethernet switches

MAP7000 Section-4 Problem with an external connection

Procedure

  1. You are here because you inspected the Ethernet switches and found that one or more link LEDs were not lit (link LEDs correspond to an externally routed Ethernet cable). Use Table 3 to find the condition of the LEDs and take the appropriate action.
    Table 3. Results of a visual check of the LEDs
    Condition of the LED(s) Action
    LEDs for both links to an external management console are not lit. Go to MAP7010 Private network isolation procedure 10.
    LED for a single link to an external management console is not lit.

    Go to SW1: MAP7011 Private network isolation procedure 11.

    Go to SW2: MAP7012 Private network isolation procedure 12.
    LEDs for both links to another storage facility are not lit. MAP7020 Private network isolation procedure 20
    LEDs for a single link to another storage facility is not lit.

    Go to SW1: MAP7030 Private network isolation procedure 30.

    Go to SW2: MAP7040 Private network isolation procedure 40.
  2. Go to MAP1500 Ending a service action to close the serviceable event and, save the network topology, and ensure good subsystem status.

MAP7000 Section-5 SRC=B3xxxxxx

Procedure

Most storage facility private network problems are reported with SRCs of BEB1xxxx. There are a few exceptions where the problems are reported with SRCs of B3xxxxxx that are from the eServer™ products. When this occurs, use Table 4 to determine the equivalent storage facility BEB1xxxx SRC and/or the appropriate action.
Table 4. Actions for B3xxxxxx SRCs
SRC in serviceable event and definition Equivalent storage facility SRC and definition Action
B3010002 - HMC or partition connection monitoring fault None Go to MAP7000 Section-3 Visual Checks.
B3030001 - The communication link between the service processor and the management console (HMC) has failed
  • BEB10021 (black) - Network Surveillance LINK_FSP_HMC: Single HMC lost link to single FSP over 172.16-BLACK network
  • BEB10022 (gray) Network Surveillance LINK_FSP_HMC: Single HMC lost link to single FSP over 172.17-GRAY network
  • BEB10023 - Not sure which network lost link.
The B3030001 SRC does not specify which private network (black or gray) has failed.
  • Go to MAP7000 Section-3 Visual Checks.
  • If MAP7000 Section-3 Visual Checks does not list a visual symptom, you are instructed to use the Network Topology Tool to determine which network fails.
  • If the black network fails, substitute SRC BEB10021 in place of B3030001
  • If the gray network fails, substitute SRC BEB10022 in place of B3030001
B3030002 - A single partition HMC link has failed.
  • BEB10041 (black) Network Surveillance LINK_PART_HMC_REDUND: Single HMC lost link to single partition on a system, the path through the 172.16-BLACK network is not available, the other network is ok
  • BEB10042 (gray) - Network Surveillance LINK_PART_HMC_REDUND: Single HMC lost link to single partition on a system, the path through the 172.17-GRAY network is not available, the other network is ok
  • BEB10043 - Not sure which network lost link.
The B3030002 SRC does not specify which private network (black or gray) has failed.
  • Go to MAP7000 Section-3 Visual Checks.
  • If MAP7000 Section-3 Visual Checks does not list a visual symptom, you are instructed to use the Network Topology Tool to determine which network fails.
  • If the black network fails, substitute SRC BEB10041 in place of B3030002.
  • If the gray network fails, substitute SRC BEB10042 in place of B3030002.
B3030003 - Multiple partition HMC links have failed. BEB10050 - Network Surveillance LINK_M_PART_HMC: Single HMC lost links to multiple partitions on single system; both paths are not available; FSP to HMC link is still working Go to MAP7000 Section-3 Visual Checks and substitute SRC BEB10050 in place of B3030003.
B3030004 - All partition links for a single system to HMC have failed. BEB10060 - Network Surveillance LINK_A_PART_HMC: Single HMC lost links to all partitions on single system; both paths are not available; FSP to HMC link is still working Go to MAP7000 Section-3 Visual Checks and substitute SRC BEB10060 in place of B3030004.
B3030005 - All system links from one system to a single HMC have failed. BEB10070 - Network Surveillance LINK_ALL_HMC: Single HMC lost links to single system (partition and FSP); both paths are not available Go to MAP7000 Section-3 Visual Checks and substitute SRC BEB10070 in place of B3030005.
B3030006 - The links between a single HMC and a single managed system have failed. BEB10080 - Network Surveillance LINK_HMC_SYS: Single HMC lost links to all systems (FSP and partition); both paths are not available Go to MAP7000 Section-3 Visual Checks and substitute SRC BEB10080 in place of B3030006.
B3030007 - A single HMC link to more than one managed system occurred. BEB10090 - Network Surveillance LINK_HMC_M_SYS: Single HMC lost links to multiple systems (FSP and partition); both paths are not available Go to MAP7000 Section-3 Visual Checks and substitute SRC BEB10090 in place of B3030007.
B3030008 - One HMC link to more than one HMC occurred. BEB10100 - Network Surveillance LINK_HMC_HMC: Lost HMC to HMC links; both paths are not available
BEB10101 - Network Surveillance: The Partner HMC is in the Offline state in the HMC peer domain
BEB10102 - Network Surveillance: The Partner HMC is not properly configured in the HMC peer domain		 Go to MAP7000 Section-3 Visual Checks and substitute SRC BEB10100 in place of B3030008.
B3030009 - One HMC link to more than one HMC occurred. BEB10120 - Network Surveillance LINK_HMC_M_HMC: Lost single HMC to HMC link; only one path is not available Go to MAP7000 Section-3 Visual Checks and substitute SRC BEB10120 in place of SRC B3030009.
B303000A - The HMC host links to all managed systems. BEB10130 - Network Surveillance LINK_HMC_ALL: Lost HMC link to multiple HMCs; both paths are not available. This does not apply to the storage facility management console (HMC). Go to MAP7000 Section-3 Visual Checks and substitute SRC BEB10130 in place of B303000A.
B303000B - Multiple HMCs lost links to a single managed system. None N/A
B303000C - Multiple HMCs lost links to multiple managed systems. BEB10150 - Network Surveillance M_LINK_HMC_M_SYS: Multiple HMCs lost all links to multiple systems (FSP and partition) Go to MAP7000 Section-3 Visual Checks substituting SRC BEB10150 in place of B303000C.
B303000D - Multiple HMCs lost links to multiple managed systems. BEB10160 - Network Surveillance M_LINK_HMC_ALL: Multiple HMCs lost all links to all systems (FSP and partition) Go to MAP7000 Section-3 Visual Checks substituting SRC BEB10060 in place of B303000D.
B303000E - The network interface card (NIC) has failed.
  • BEB10011 (black) Network Surveillance NIC_FAILURE: Single HMC physical link unavailable on ethernet port - eth0 (172.16-BLACK network)
  • BEB10012 (gray) Network Surveillance NIC_FAILURE: Single HMC physical link unavailable on ethernet port - eth3 (172.17-GRAY network)
  • BEB10013 - Network Surveillance: Ethernet cables missing or swapped
 The B303000E SRC does not specify which private network (black or gray) has failed.
  • Go to MAP7000 Section-3 Visual Checks.
  • If MAP7000 Section-3 Visual Checks does not list a visual symptom, you are instructed to use the Network Topology Tool to determine which network fails.
  • If the black network fails, substitute SRC BEB10011 in place of B303000E
  • If the gray network fails, substitute SRC BEB10012 in place of B303000E
B303000F - A single partition HMC link failure has occurred on a redundant path.
  • BEB10041 (black) Network Surveillance LINK_PART_HMC_REDUND: Single HMC lost link to single partition on a system, the path through the 172.16-BLACK network is not available, the other network is ok
  • BEB10042 (gray) Network Surveillance LINK_PART_HMC_REDUND: Single HMC lost link to single partition on a system, the path through the 172.17-GRAY network is not available, the other network is ok
  • BEB10043 Not sure which network has lost link.
The B303000F SRC does not specify which private network (black or gray) failed.
  • Go to MAP7000 Section-3 Visual Checks.
  • If MAP7000 Section-3 Visual Checks does not list a visual symptom, you are instructed to use the Network Topology Tool to determine which network fails.
  • If the black network fails, substitute SRC BEB10041 in place of B303000F
  • If the gray network fails, substitute SRC BEB10042 in place of B303000F
B3030010 - A single HMC link to one HMC failure has occurred on a redundant path. BEB10110 - Network Surveillance LINK_HMC_HMC_REDUND Go to MAP7000 Section-3 Visual Checks and substitute the BEB10110 SRC in place of the B3030010 SRC.
B3030011 - The server firmware connection monitoring to the flexible service processor has failed. None Go to MAP7000 Section-3 Visual Checks.
B3030012 - The flexible service processor connection monitoring of server firmware has failed. None Go to MAP7000 Section-3 Visual Checks.
B3030013 - The communication path (mailbox) between the server firmware and the flexible service processor has failed. None Go to MAP7000 Section-3 Visual Checks.
B3100500 - Device Driver Message: mmm dd hh:mm:ss DR-RC02-OPENSYS kernel: e1000: ethN: e1000_watchdog_task: NIC Link is Down
Model 98x:
DR-RC02-OPENSYS kernel: r8169: ethN: r8169_watchdog_task: NIC Link is Down
  • BEB10011 (black) Network Surveillance NIC_FAILURE: Single HMC physical link unavailable on ethernet port - eth0 (172.16-BLACK network)
  • BEB10012 (gray) Network Surveillance NIC_FAILURE: Single HMC physical link unavailable on ethernet port - eth3 (172.17-GRAY network)
 The B3100500 SRC does not specify which private network (black or gray) has failed.
  • Go to MAP7000 Section-3 Visual Checks
  • If MAP7000 Section-3 Visual Checks does not list a visual symptom, you are instructed to use the Network Topology Tool to determine which network fails.
  • If the black network fails, substitute SRC BEB10011 in place of B3100500
  • If the gray network fails, substitute SRC BEB10012 in place of B3100500
B3100501 - Device Driver Message: mmm dd hh:mm:ss DR-RC02-OPENSYS kernel: e1000: ethN: unregister 'asix' usb-0000:00:xx.x-x, ASIX AX88772 USB 2.0 Ethernet
  • BEB10014 (black) Network Surveillance NIC_FAILURE: Single HMC physical link unavailable on ethernet port - eth0 on the USB adapter (172.16-BLACK network)
  • BEB10015 (gray) Network Surveillance NIC_FAILURE: Single HMC physical link unavailable on ethernet port - eth3 on the USB adapter (172.17-GRAY network)
The B3100501 SRC does not specify which private network (black or gray) has failed.
  • Go to MAP7000 Section-3 Visual Checks
  • If MAP7000 Section-3 Visual Checks does not list a visual symptom, you are instructed to use the Network Topology Tool to determine which network fails.
  • If the black network fails, substitute SRC BEB10014 in place of B3100501
  • If the gray network fails, substitute SRC BEB10015 in place of B3100501

MAP7000 Section-6 Model 983 UPS network error

Procedure

  1. Locate the UPS listed in the serviceable event FRU list. See Figure 19.
    Note: The UPS (Model 983 only) does not have FRU identify indicators so the UPS serial number must be used to ensure that the correct UPS is being repaired.
    Figure 19. Storage controller module (enclosures shown)
    Storage controller module (enclosures shown)
  2. At the rear of the UPS, is the Ethernet cable connected to the UPS network card C1-J1 connector?
    • Yes, go to step 3.
    • No. Connect the cable. Go to step 3.
    Figure 20. Location codes for the UPS (Model 983), rear view
    Location codes for the UPS (Model 983), rear view
  3. Locate the management enclosure. See Figure 19.
  4. At the front of the rack, slide the management enclosure out to the service position and remove the top cover. See Figure 21.
    Note: The management enclosure is below the two CEC enclosures.
    1. Fully loosen the left and right captive thumb screws.
    2. Slide the management out fully so the sliding rails lock into place.
    3. At the rear of the top cover, fully loosen the left and right captive thumb screws.
    4. Slide the cover back until it lifts off.
    Figure 21. Front of Management enclosure (Model983)
    Front of Management enclosure (Model 983)
  5. Determine the Ethernet interface path from the UPS C1-J1 connector to the Ethernet switch inside the management enclosure. See Figure 22.

    Each UPS is connected to one private network (Black or Gray), not both.

    Between the UPS and Ethernet switch, there are three FRUS:
    1. Ethernet cable, UPS to management enclosure rear cable coupler.
    2. Cable coupler, UPS rear bulkhead.
    3. Ethernet cable, management enclosure rear cable coupler to Ethernet switch.
    Figure 22. Ethernet cables (Models 983)
    Ethernet cables (Models 983)
  6. Are the two Ethernet cables and rear bulkhead coupler properly connected?
    • Yes. Go to step 7.
    • No. Connect the cable. Go to step 7.
  7. Verify that the Ethernet connection is active. Observe the UPS network card activity LED. See Figure 23.
    1. Is the UPS network card port green LED lit or flashing?
      • Yes. The link is active. Exit this MAP and return to the procedure that sent you here.
      • No. The link is not active. Go to step 8.
    Figure 23. LEDs for the UPS network card (Model 983)
    LEDs for the UPS network card (Model 983)
  8. At the front of the rack, observe the UPS control panel. See Figure 24.
    Is the AC icon Callout label 1 lit? See Figure 25.
    • Yes, go to step 4. The possible failing FRUs are the UPS network card, the Ethernet switch, or the cable coupler and the two Ethernet cables. Exit this MAP and replace FRUs until the problem is repaired.
    • No, go to MAP2870 UPS visual symptoms.
    Figure 24. UPS control panel
    UPS control panel
    Figure 25. UPS control panel with indexes
    UPS control panel with indexes