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IBM Power775 Service Procedure
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IBM Power775 Service Procedure

IBM Power775 Service Procedure

Disk enclosure rails service procedure
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Power775 Disk Enclosure Rail Service Procedure
Power775
Disk Enclosure Rails Service Procedure
Last Modified 11/03/2011
1 of 57

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  • Page 1 Power775 Disk Enclosure Rail Service Procedure Power775 Disk Enclosure Rails Service Procedure Last Modified 11/03/2011 1 of 57...

  • Page 2: Table Of Contents

    NCLOSURE 3.15 <= SSR T ....................53 ONFIRM WITH THE CUSTOMER END OF POWER775 DISK ENCLOSURE RAILS SERVICE PROCEDURE..........54 APPENDIX A: POWER775 BPC FSP COMMAND LINE PROCEDURE ............55 BPC FSP C .................. 55 ROCEDURE TO CCESS THE OMMAND...
  • Page 3 Power775 Disk Enclosure Rail Service Procedure Figure List Figure 1: DE Rail Assembly Front & Back Views .......................... 9 Figure 2: Typical 12-Node, 1-DE Rack Configuration ........................10 Figure 3: Typical 2-Node, 6-DE Rack Configuration........................11 Figure 4: DE Enclosure VPD Label Location ..........................12 Figure 5 Disk Enclosure HEX Cage ID ............................
  • Page 4 Power775 Disk Enclosure Rail Service Procedure Table List Table 1: Release / Revision History..............................5 Table 2: Required Documents................................ 5 Table 3: Related Documents ................................5 Table 4: Abbreviations................................... 6 4 of 57...

  • Page 5: General

    Initial Release Table 1: Release / Revision History 1.2 Where to find this document The current “Power775 Disk Enclosure Rail Service Procedure” document is “p775_de_rails.pdf” which is to be downloaded from: InfoCenter Website: http://publib.boulder.ibm.com/infocenter/powersys/v3r1m5/topic/p7ee2/p7ee2kickoff.htm Click “PDF files for the IBM Power 775 (9125-F2C) removing and replacing parts”...

  • Page 6: Abbreviations

    Power775 Disk Enclosure Rail Service Procedure 1.5 Abbreviations Abbreviation Definition Details Bulk Power Assembly Central Electronic Complex Also referred to as the “node”. DCCA Distributed Conversion and Control The power supplies for the CEC and DE are called the Assembly CEC DCCA and DE DCCA respectively.

  • Page 7: Overview

    CAUTION: Servicing of this product or unit is to be performed by trained service personnel only. (C032) The following notices specifically pertain to this Power775 service procedure: DANGER: Heavy equipment — personal injury or equipment damage might result if mishandled. (D006) CAUTION The weight of this part or unit is more than 55 kg (121.2 lb).
  • Page 8 Power775 Disk Enclosure Rail Service Procedure DANGER: Hazardous voltage present. Voltages present constitute a shock hazard, which can cause severe injury or death. (L004) CAUTION: Sharp edges, corners, or joints nearby. (L006) CAUTION: System or part is heavy. The label is accompanied by a specific weight range. (L009) CAUTION: Protective eyewear is needed for the procedure.

  • Page 9: Attention: File System Risk Statement

    2.4 DE Rails Description The Power775 Disk Enclosure is supported in the Rack on 2 rail assemblies, one on the left and one on the right of the Disk Enclosure unit. Figure 1 shows a photograph of the Rail assembly. These Rail assemblies include integrated SAS cable channels to assist in routing SAS cables from the front of the DE to the back (as shown in Figure 1 (“D”)).
  • Page 10 Power775 Disk Enclosure Rail Service Procedure Figure 2: Typical 12-Node, 1-DE Rack Configuration 10 of 57...
  • Page 11 Power775 Disk Enclosure Rail Service Procedure Figure 3: Typical 2-Node, 6-DE Rack Configuration 11 of 57...

  • Page 12: Enclosure Vpd Label And Location Code

    2.7 Required SSRs and Roles This service procedure requires two SSRs. This service procedure contains steps to be performed by a customer system administrator and two IBM SSRs (System Service Representatives). The customer system administrator performs the STEPs in Sections marked with “<= CUSTOMER TASK”...

  • Page 13: Estimated Service Time

    Power775 Disk Enclosure Rail Service Procedure 2.8 Estimated Service Time The estimated service time for this procedure is about 1 hour. 2.9 Required Tools Service card (shipped in the Power 775 frame) Lift Tool Kit 74Y1087 Ladder PN 46G5947 may be required for upper DE locations (shipped in the Power 775 Lift Tool Kit) •...

  • Page 14: Service Procedure

    Power775 Disk Enclosure Rail Service Procedure 3 SERVICE PROCEDURE STOP – Do not proceed unless you have read “Safety Notices” which is available from InfoCenter; see Section 1.3. 3.1 Assess Shutdown of File System <= CUSTOMER TASK STEP 1 The customer must assess whether all client applications can be stopped at this time and whether the Global Parallel File System (GPFS) can be shut down at this time.

  • Page 15: Identify The Frame <= Ssr Task

    3.3 Identify the frame <= SSR TASK STEP 4 Use the procedure “Appendix A: Power775 BPC FSP Command Line Procedure” (included in Section 5 of this document) to access the BPC FSP command line of the frame with the Disk Enclosure needing its rails replaced.
  • Page 16 Power775 Disk Enclosure Rail Service Procedure Cage ID (Hex) = 0F Cage ID (Hex) = 0D Cage ID (Hex) = 0B Cage ID (Hex) = 09 Cage ID (Hex) = 07 Cage ID (Hex) = 05 Figure 5 Disk Enclosure HEX Cage ID...
  • Page 17 Power775 Disk Enclosure Rail Service Procedure STEP 6 Locate the frame. Confirm that it is the correct frame by checking that its UEPO Panel Identify LED is blinking. This LED is located on the UEPO panel and it is marked by the “!” symbol (see Figure 6 and Figure 7).
  • Page 18 Power775 Disk Enclosure Rail Service Procedure Figure 7 UEPO assembly showing frame Identify Amber LED STEP 7 Open the front and rear doors DANGER: Hazardous voltage present. Voltages present constitute a shock hazard, which can cause severe injury or death. (L004) Locate the latch along the left side of the door;...
  • Page 19 Power775 Disk Enclosure Rail Service Procedure Figure 8 Door Latch Figure 9 Door Latch handle shown extended 19 of 57...
  • Page 20 Power775 Disk Enclosure Rail Service Procedure STEP 8 If it will be needed for service, bring over the Ladder PN 46G5947 (shipped in the Power 775 Lift Tool Kit). STEP 9 Identify the Disk Enclosure Identify the Disk Enclosure with the failed fans by looking for the blinking amber Enclosure ID LEDs on the DE DCCAs on the front side of the Disk Enclosure (see Figure 10) OR on the right side of the rear of the Disk Enclosure (see Figure 11).
  • Page 21 Power775 Disk Enclosure Rail Service Procedure Figure 11 Rear Enclosure ID LED is located on the bottom right side of the DE STEP 10 Check the Enclosure VPD Label Verify that the location codes of the Fans to be replaced match the enclosure VPD Label of the DE you have identified (see Figure 5).

  • Page 22: Power Off The Disk Enclosure <= Customer Task

    Power775 Disk Enclosure Rail Service Procedure 3.4 Power off the Disk Enclosure <= CUSTOMER TASK STEP 12 Power Off the Disk Enclosure by using the following command from the BPC Command Line: This is the command syntax: bpccmd –c 40<blank>0000<cage ID>...
  • Page 23 Power775 Disk Enclosure Rail Service Procedure Figure 12: T1 and T4 Input Power LEDs on the DE DCCAs 23 of 57...

  • Page 24: Remove Front Door And Latch Plate, Move Uepo Panel <= Ssr Task

    Power775 Disk Enclosure Rail Service Procedure 3.6 Remove Front Door and Latch Plate, Move UEPO Panel <= SSR TASK STEP 14 Remove the front door. The front door weighs 37lbs (16.8 kg). CAUTION: Sharp edges, corners, or joints nearby. (L006) Face the inside of the door and place hands on the cross bars (see Figure 13 Removal of Front Door) •...
  • Page 25 Power775 Disk Enclosure Rail Service Procedure STEP 15 Is the Disk Enclosure being serviced located in U21 or U25 (see Figure 15)? If “YES”, then go to STEP 16. • If “NO”, then go to STEP 20. • Figure 15: Disk Enclosure and UEPO Location Info.
  • Page 26 Power775 Disk Enclosure Rail Service Procedure STEP 18 Place the UEPO in the “Frame UEPO Service Position” in the Rack (see Figure 16). Figure 16: Frame UEPO Service Position STEP 19 Hand tighten the UEPO blue thumb screw to secure the UEPO in the Rack.
  • Page 27 Power775 Disk Enclosure Rail Service Procedure Figure 17: Disk Enclosure and Door Latch Plate Location Info. STEP 21 Remove the door latch plate before proceeding. Unscrew the plate using the Hex Driver torque tool PN 41V1059 (4mm Hex Driver 1.5-1.75 Nm) provided in the tool kit using Figure 16 for reference.
  • Page 28 Power775 Disk Enclosure Rail Service Procedure STEP 22 Remove latch plate from Rack per Figure 17. Figure 19: Door Latch Plate Removal 28 of 57...

  • Page 29: Disconnect Cables, Hoses, And Retention Screws <= Ssr Task

    Power775 Disk Enclosure Rail Service Procedure 3.7 Disconnect Cables, Hoses, and Retention Screws <= SSR TASK STEP 23 Disconnect the four DCCA Service Network Communications (E/NET) cables from both DE DCCAs by depressing the “retention clip” (see Figure 20 and Figure 21). All cables should be labeled to help when re- cabling the DE.
  • Page 30 Power775 Disk Enclosure Rail Service Procedure STEP 24 CAUTION: Following the service procedure assures power is removed from 350 VDC power distribution connectors before they are unplugged. However, unplugging 350 VDC power distribution connectors while powered on, should not be done because it can cause connector damage and could result in burn and/or shock injury from electrical arcing.
  • Page 31 Power775 Disk Enclosure Rail Service Procedure STEP 25 Identify the SAS cables that need to be disconnected and disconnect them. The SAS cables connect to Port Card in the front and rear of the DE. All cables should be labeled to help when re-cabling the DE.
  • Page 32 Power775 Disk Enclosure Rail Service Procedure STEP 26 Locate the two Front Rail Block Captive Allen head screws (one on the left side and one on the right side of the DE) which hold the Front Rail Block to the DE Rails (see Figure 25).
  • Page 33 Power775 Disk Enclosure Rail Service Procedure Figure 25: Front Rail Block Screws 33 of 57...
  • Page 34 Power775 Disk Enclosure Rail Service Procedure STEP 28 Disconnect the 2 Water Hoses from the rear of the Disk Enclosure by pulling the retaining ring on the hose (see Figure 26 Water Hose Connector). CAUTION: The water-based coolant solution may contain an additive intended to inhibit corrosion (or provide other functions).
  • Page 35 Power775 Disk Enclosure Rail Service Procedure STEP 29 Locate the two Rear Rail Block Captive Allen head screws (one on the left side and one on the right side of the DE) which hold the Rear Rail Block to the Rack Slide-Rails (see Figure 27).

  • Page 36: Attach The Lift Tool To The Frame <= Ssr Task

    Power775 Disk Enclosure Rail Service Procedure 3.8 Attach the Lift Tool to the frame <= SSR TASK STEP 30 Find the frame attachment bracket on the lift tool (see Figure 28). Find the lift tool anchor locations on the front side of the Power 775 frame (see Figure 29).
  • Page 37 Power775 Disk Enclosure Rail Service Procedure Figure 30: Lift Tool against Front Side of Frame STEP 31 Using the 5 mm Hex tool P/N 74Y0986 and 3/8in-ratchet handle 23-31 Nm torque clutch P/N 74Y0985 (shipped in the Hand Tool Kit), screw the attachment screws into the Lift Tool anchor holes in the frame and torque screws until seated (see Figure 31).
  • Page 38 Power775 Disk Enclosure Rail Service Procedure STEP 32 Extend and flip up the lift tool Front Table Stop (see Figure 32). Figure 32: Front Table Stop STEP 33 Ensure that all the cables of the rack are dressed such that the lift table will not catch on cables as it is moved up and down across the face of the rack (see Figure 33 and Figure 34).
  • Page 39 Power775 Disk Enclosure Rail Service Procedure Figure 34: Secure Cables STEP 34 Ensure that the UEPO will not be hit as the table moves up and down. Also ensure that the UEPO is secured to the frame so it does not move during the service procedure.
  • Page 40 Power775 Disk Enclosure Rail Service Procedure Figure 36 Power Drill Operation – Correct Settings for Use STEP 36 If necessary bring over Ladder P/N 46G5947 shipped with the POWER 775 Lift Tool Kit. 40 of 57...

  • Page 41: Move The Disk Enclosure Onto The Lift Tool <= Ssr Task

    Power775 Disk Enclosure Rail Service Procedure 3.9 Move the Disk Enclosure onto the Lift Tool <= SSR TASK CAUTION: Do not remove or install this unit without using the provided lift tool. (C017) DANGER: Hazardous voltage present. Voltages present constitute a shock hazard, which can cause severe injury or death.
  • Page 42 Power775 Disk Enclosure Rail Service Procedure Figure 37 Relocate the DCCA cables Figure 38 Cable Protector Sheet Figure 39 Fold Cable Protector Sheet 42 of 57...
  • Page 43 Power775 Disk Enclosure Rail Service Procedure Figure 40 Cable protector sheet shown in upper left position STEP 38 Grasping the blue-purple recessed touch points on the front DE cable tray, pull the DE out of the frame a few inches until the front cable tray is just above the first Lift Tool roller (see Figure 41).
  • Page 44 Power775 Disk Enclosure Rail Service Procedure Figure 42 Front of DE resting on lift tool STEP 40 Grasping the recessed touch points on the DE cable tray, slide the DE forward onto the Lift Tool slowly so that the Safety Latches do not get damaged when they engage on the rack rails (see Figure 43).
  • Page 45 Power775 Disk Enclosure Rail Service Procedure NOTE: When releasing latches it maybe necessary to slide the DE back toward the frame slightly (< 1mm) to release the tension on the latch. Figure 44 Disengage the right latch first Figure 45 Side view of latching system of DE out of frame...
  • Page 46 Power775 Disk Enclosure Rail Service Procedure STEP 42 Slide the DE out of frame until it is completely supported by the lift tool and will not interfere with the frame when the Lift Tool is raised or lowered (see Figure 46 and Figure 47).

  • Page 47: Remove Defective De Rails <= Ssr Task

    Power775 Disk Enclosure Rail Service Procedure 3.10 Remove defective DE Rails <= SSR Task STEP 44 Carefully remove any SAS cables by pulling them through the defective Rail cable channels and towards the back of the frame. STEP 45 Perform STEPS 44,45 and 46 on both the right and left DE rails. Using 3/8in-ratchet handle 23-31 Nm torque clutch P/N 74Y0985, 30cm (12in) socket extension, 5mm hex socket bit (PN 74Y0986), loosen the four rail mounting captive screws (see “A”...

  • Page 48: Install New De Rails <= Ssr Task

    Power775 Disk Enclosure Rail Service Procedure 3.11 Install new DE Rails <= SSR Task STEP 48 Review that the Rails are properly oriented for Rack installation (Figure 50). The rail end with the thumbscrew (A) is installed at rear of the Rack.
  • Page 49 Power775 Disk Enclosure Rail Service Procedure STEP 50 Align and insert the two guide pins on the back of the rail into the key holes in the frame. STEP 51 As you position the rail, you will need to slide it towards the rear of the frame in order to engage the “mushroom”...

  • Page 50: Install De Back Into Frame <= Ssr Task

    Power775 Disk Enclosure Rail Service Procedure 3.12 Install DE back into frame <= SSR Task CAUTION: Do not remove or install this unit without using the provided lift tool. (C017) DANGER: Hazardous voltage present. Voltages present constitute a shock hazard, which can cause severe injury or death.
  • Page 51 Power775 Disk Enclosure Rail Service Procedure STEP 62 If you removed the Front Rail Blocks, reinstall them using the Front Rail Block hex screws (see Figure 25). NOTE: Make sure the Rail Blocks will not interfere with removal of the adjacent Drive Carriers...

  • Page 52: Store All Tools. <= Ssr Task

    Power775 Disk Enclosure Rail Service Procedure STEP 63 Install the two Front Rail Block Captive Allen head screws (one on the left side and one on the right side of the DE) (see Figure 25). Using the 2mm Hex Torque Driver P/N 74Y0983 with torque setting of 0.07Nm, reconnect the four DCCA Power STEP 64 Cables (HPICs) to the DE DCCAs.

  • Page 53: Confirm With The Customer <= Ssr Task

    From the BPC FSP command line, make sure all the fans are functional with the following command: “bpccmd -b -f” If a fan is not functional, use “Power775 Disk Enclosure Fan Service Procedure” from InfoCenter and instead of replacing the fan, check to make sure that it is fully seated.

  • Page 54: End Of Power775 Disk Enclosure Rails Service Procedure

    Power775 Disk Enclosure Rail Service Procedure 4 END OF POWER775 DISK ENCLOSURE RAILS SERVICE PROCEDURE 54 of 57...

  • Page 55: Appendix A: Power775 Bpc Fsp Command Line Procedure

    Power775 Disk Enclosure Rail Service Procedure 5 5 5 5 APPENDIX A: POWER775 BPC FSP COMMAND LINE PROCEDURE Procedure to Access the BPC FSP Command Line 1. The HMC can be accessed via the keyboard/display that resides in the network management rack.
  • Page 56 5. From the Launch ASM Interface window, select SIDE_A for the ‘Frame IP Address’ then click the OK button. 6. The ASM login window is presented. Acquire the necessary User ID and Password. “celogin” requires Daily PW from the IBM Support Center. “celogin1” might be has enabled by the customer. If so, obtain the password from the customer.

  • Page 57: End Of Appendix A: Power775 Bpc Fsp Command Line Procedure

    Enter key (or click the Execute button). 9. Return to the step of the paper service procedure that directed you to this Appendix. End of Appendix A: Power775 BPC FSP Command Line Procedure 57 of 57...

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