DS8000 Service Documentation Version 6.3.3

MAP1240 Locating FRUs using identify indicators

About this task

The primary method to locate a FRU to be exchanged is by using the hierarchy of identify indicators for that FRU. When the FRU to be exchanged has been selected in a serviceable event, or selected using the FRU replace options, the management console will cause the hierarchy of identify indicators to be lit.

For example, if you select to exchange a storage enclosure DDM FRU from a serviceable event, the following identify indicators will be lit:

Rack identify indicator (on the rack operator panel) for the rack that contains the FRU
Storage enclosure identify indicator for the enclosure that contains the FRU
DDM identify indicator for the specific DDM that is to be replaced

For those FRUs that do not have an identify indicator (see Table 1, Table 2), the rack and enclosure identify indicators will still be lit. To determine the actual FRU within the enclosure, you need to use the last part of the location code for that FRU. See MAP1245 Finding FRUs by using location codes

For more information about LEDs, see LED indicators.

MAP1240 Section-1

Procedure

Locate the storage facility to be serviced.
Observe the operator panel identify LED on each rack in the storage facility.
- For Rack-1 Model 941, see Figure 1.
- For Rack-1 Model 951, see Figure 2.
Figure 1. Model 941 "Identify" indicator (LED) on a rack operator panel

Figure 2. Model 951 "Identify" indicator (LED) on the upper right of the front cover
The FRU will be in the rack with the operator panel identify LED blinking. Go to step 4.
The FRU identify LED indicator you will attempt to find in the following steps may not be lit under these circumstances:
- The LED is burnt out.
- The FRU that contains the LED is no longer able to control the LED.
- The LED may be controlled by a different FRU that feeds a signal directly or by a cable to the FRU to be identified. The controlling FRU or the cable could have a problem.
- If the FRU identify LED indicator is not operational, you will need to use the location code to determine the failing FRU.
Open the front and rear covers of the rack containing the FRU determined in the above steps.

You will now locate the area of the rack containing the FRU.

Use the FRU description and FRU location code from a serviceable event FRU list or the exchange FRU option to find the area of the rack containing the FRU:

For rack models 941, 94E see Table 1.
For rack models 951, 95E see Table 2.

The MTMS (machine type model serial number) is the first part of the FRU location code. Example: Location code = U2424.941.75ABCD0-C2 where U2424.941.75ABCD0 = MTMS and C2 = FRU location within the MTMS.

Note: If a FRU is contained in an enclosure, only the enclosure is listed below. If the FRU is not contained in an enclosure, then it is listed in the table.

Table 1. Model 941, 94E FRU identify LED locations
MTMS	FRU Description	Identify LED location
CEC enclosure¹
U789D.001 .sssssss	Multiple FRUs in enclosure	MAP1240 Section-10 (CEC Enclosure Models 941, 951)
HMC server
4061.mmm.sssssss 4349.mmm.sssssss	Multiple FRUs in laptop	There is no Identify LED for the HMC.
I/O enclosure
U1400.rBn.sssssss	Multiple FRUs in enclosure	MAP1240 Section-11 (I/O enclosure Models 941, 94E, 951, 95E)
Rack and power
2nnn.mmm.sssssss	(Rack, not a FRU)	Figure 1
U2`nnn`.mmm.sssssss-Exx (xx=10, 11,12)	Battery module enclosure	MAP1240 Section-2 (battery enclosure)
U2`nnn`.mmm.sssssss-Ax (x=1,2,3)	DASD fan tray	MAP1240 Section-3 (DASD fan tray)
U2`nnn`.mmm.sssssss-Cx (x=3,4)	Fan sense card	MAP1240 Section-4 (fan sense card)
U2`nnn`.mmm.sssssss-C6	Local remote switch card / zSeries local remote switch card	MAP1240 Section-5 (local remote or zSeries local remote switch card)
U2`nnn`.mmm.sssssss-Ex (x=1,2)	Primary power supply (PPS)	MAP1240 Section-6 (primary power supply, PPS)
U2`nnn`.mmm.sssssss-C5	Rack identity card	MAP1240 Section-7 (rack identity card)
U2`nnn`.mmm.sssssss-Cx (x=1,2)	Rack Power Control (RPC) card	MAP1240 Section-8 (RPC card)
Storage enclosure
U2107.D01.sssssss	Multiple FRUs in enclosure	MAP1240 Section-9 (storage enclosure [16 DDM slots] Models 92x, 93x, 92E, 9A2, 9B2, 9AE, 941)
Storage Facility Image (SFI)
U2nnn.mmm.ssssssy (y=1, 2)	(Not a FRU)
Note: 1. A CEC complex may have more than one CEC enclosure, each with a unique ssssss.

Table 2. Model 951, 95E FRU identify LED locations
MTMS	FRU Description	Identify LED location
CEC enclosure¹
U789D.001 .sssssss	Multiple FRUs in enclosure	MAP1240 Section-10 (CEC Enclosure Models 941, 951)
HMC server
4061.mmm.sssssss 4349.mmm.sssssss 4242.mmm.sssssss	Multiple FRUs in laptop	There is no Identify LED for the HMC.
I/O enclosure
U1400.rBn.sssssss	Multiple FRUs in enclosure	MAP1240 Section-11 (I/O enclosure Models 941, 94E, 951, 95E)
Rack and power
2nnn.mmm.sssssss		Figure 2
U2`nnn`.mmm.sssssss-Exx (xx=10, 11,12)	Battery module enclosure	MAP1240 Section-2 (battery enclosure)
U2`nnn`.mmm.sssssss-C6	Local remote switch card / zSeries local remote switch card	MAP1240 Section-5 (local remote or zSeries local remote switch card)
U2`nnn`.mmm.sssssss-Ex (x=1,2)	Primary power supply (PPS)	MAP1240 Section-6 (primary power supply, PPS)
U2`nnn`.mmm.sssssss-C5	Rack identity card	MAP1240 Section-7 (rack identity card)
U2`nnn`.mmm.sssssss-Cx (x=1,2)	RPC card	MAP1240 Section-8 (RPC card)
Storage enclosure
U2107.D02.sssssss	Multiple FRUs in enclosure	MAP1240 Section-12 (storage enclosure [12 or 24 DDM slots] Model 951, 95E)
Storage Facility Image (SFI)
2nnn.951.ssssss1	(Not a FRU)
Note: 1. A CEC complex may have more than one CEC enclosure, each with a unique ssssss.

MAP1240 Section-2 (battery enclosure)

Procedure

At the rear of the rack, find the battery enclosure with the blinking identify LED Callout label 1

Figure 3. All models battery module enclosure locations (rear)

Figure 4. All models battery module set locations (front)

MAP1240 Section-3 (DASD fan tray)

Procedure

1. At the front of the rack, find the DASD fan tray with the blinking identify LED [A1] [A2] [A3].

Figure 5. Models 92x, 93x, 92E, 9A2, 9B2, 9AE, 941 "Identify" indicator (LED) for a DASD fan tray

MAP1240 Section-4 (fan sense card)

Procedure

1. At the front and rear of the rack, find the fan sense card with the blinking identify LED Callout label 1

C3 location is at the front of the rack
C4 location is at the rear of the rack

Figure 6. Models 92x, 93x, 9A2, 9B2, 941 LEDs on the fan sense cards

MAP1240 Section-5 (local remote or zSeries local remote switch card)

Procedure

At the rear of the rack, find the local remote switch card or zSeries local remote switch with the blinking identify LED Callout label 1

(Figure 7) or LED Callout label 3

(Figure 8).

Figure 7. Model 941 "Identify" indicators (LEDs) for local remote and zSeries local remote switch cards

Identify LED for local remote and zSeries local remote switch card

Figure 8. Model 951 "Identify" indicators (LEDs) for local remote and zSeries local remote switch cards

MAP1240 Section-6 (primary power supply, PPS)

Procedure

1. At the front of the rack, find the primary power supply with the blinking identify LED .
- E1 location is upper PPS
- E2 location is lower PPS
Figure 9. All models "Identify" indicator (LED) for a PPS
The Models 941, 94E 5/12V DDM power module identify LED is at the rear of the rack.
Figure 10. "Identify" indicator (LED) for a 5/12V DDM power module
The booster power module identify LED is at the rear of the rack.
Figure 11. All models "Identify" indicator (LED) for a booster power module
The Models 951, 95E 208V DDM power module identify LED is at the rear of the rack.
Figure 12. "Identify" indicator (LED) for a 208V DDM power module

MAP1240 Section-7 (rack identity card)

Procedure

1. At the rear of the rack, observe the identify LED Callout label 1

Figure 13. Model 941 "Identify" indicator (LED) on the rack identity card

Figure 14. Models 951, 95E "Identify" indicator (LED) on the rack identity card

MAP1240 Section-8 (RPC card)

Procedure

At the rear of the rack, find the RPC card with the blinking identify LED:

Models 941, 951: or (See Figure 15.)

Figure 15. "Identify" indicator (LED) for an RPC card (Models 941, 951)

MAP1240 Section-9 (storage enclosure [16 DDM slots] Models 92x, 93x, 92E, 9A2, 9B2, 9AE, 941)

Procedure

1. At the front and rear of the rack, find the storage enclosure with the enclosure identify LED blinking on one or both FCIC cards.
Figure 16. LEDs on a Fibre Channel interface card (at a storage enclosure)
The FCIC card "identify" indicator (LED) is shown in Figure 16.
The DDM "Identify" indicator (LED) is shown in Figure 17.
Figure 17. LEDs on a disk drive module (DDM)

MAP1240 Section-10 (CEC Enclosure Models 941, 951)

Procedure

At the front of the rack, find the CEC enclosure with the enclosure identify LED blinking.
Figure 18. The "Identify" indicator (LED) for a CEC enclosure (front)

Find the FRU identify LED location that is blinking using Table 3 and Figure 19 through Figure 21.

Table 3. FRU identify LED locations on the CEC enclosure
FRU	Reference
CEC enclosure	Figure 19, LED ; Figure 20, LED
CEC enclosure control panel	No LED, use location code
CEC enclosure disk drive	Figure 19, LED
CEC enclosure disk drive backplane assembly	Figure 19, LED
CEC enclosure fan	Figure 19, LED
CEC enclosure I/O backplane assembly	Figure 20, LED
CEC enclosure PCIe four port card	Figure 21, LED
CEC enclosure PCIe single port card	Figure 21, LED
CEC enclosure PCIe single port card (slot 5)	Figure 21, LED
CEC enclosure power supply	Figure 20, LED
CEC enclosure RIO card	Figure 21, LED
CEC enclosure RIO card ports 1 and 2	Figure 21, LED
CEC enclosure service processor card	Figure 20, LED
CEC enclosure system processor backplane assembly	Figure 19, LED
CEC enclosure system processor card	No LED, use location code (See Exchange the CEC enclosure system processor card for more information.)
CEC enclosure system processor dummy card	No LED, use location code
CEC enclosure system processor voltage card	Figure 19, LED
CEC enclosure system processor voltage dummy card	No LED, use location code
CEC enclosure VPD card	No LED, use location code
CEC enclosure VPD pass-through card	Figure 20, LED

Figure 19. LEDs on the CEC enclosure (rear)

Figure 20. LED CEC enclosure right rear

Figure 21. LED CEC enclosure left rear

MAP1240 Section-11 (I/O enclosure Models 941, 94E, 951, 95E)

Procedure

At front of rack, note the I/O enclosure location codes, as shown in Figure 22.
Figure 22. I/O enclosure locations in front of rack
Find the I/O enclosure with the I/O enclosure identify blue LED on solid. See Figure 23 and Figure 24.
Figure 23. "Identify" indicator (LED) for an I/O enclosure (front)

Figure 24. "Identify" indicator (LED) for an I/O enclosure (rear)

Find the FRU identify LED location that is blinking using Table 4, Figure 25, and Figure 26.

Table 4. FRU identify LED locations on the I/O enclosure
FRU	Reference
I/O enclosure device adapter card	Figure 25, LED
I/O enclosure Fibre Channel host card, long wave	Figure 25, LED
I/O enclosure Fibre Channel host card, short wave	Figure 25, LED
I/O enclosure fan	Figure 26, LED
I/O enclosure identify	Figure 23, LED Figure 24, LED
I/O enclosure power supply	Figure 26, LED
I/O enclosure PCIe and SPCN card	Figure 25, LED

Figure 25. LEDs on the CEC enclosure (rear)

Figure 26. LEDs on the I/O enclosure (front)

MAP1240 Section-12 (storage enclosure [12 or 24 DDM slots] Model 951, 95E)

Procedure

At the front of the rack, find the storage enclosure with the enclosure identify LED lit solid.
Figure 27. LEDs on the front of the storage enclosure
To locate a DDM: at the front of the rack, find the DDM with the identify LED blinking.
Figure 28. Disk drive modules (DDMs) LEDs (24 DDM slot storage enclosure)

Figure 29. Disk drive modules (DDMs) LEDs (12 DDM slot storage enclosure)
To locate a Fibre Channel interface card (FCIC): at the rear of the rack, find the FCIC with the attention/identify LED blinking.
Figure 30. LEDs on a Fibre Channel interface card (at a storage enclosure)
To locate a storage enclosure power supply: at the rear of the rack, find the storage enclosure power supply with the attention/identify LED blinking.
Figure 31. Storage enclosure power supply LEDs