DS8000 Service Documentation Version 7.5

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 causes 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 are 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, Table 3), the rack and enclosure identify indicators are still 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, 961 , see Figure 2.
Figure 1. Model 941 "Identify" indicator (LED) on a rack operator panel

Figure 2. Model 951, 961 "Identify" indicator (LED) on the upper right of the front cover
The FRU is in the rack with the operator panel identify LED flashing. Go to step 4.
The FRU identify LED indicator that you attempt to find in the following steps might 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 might 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 might have a problem.
- If the FRU identify LED indicator is not operational, 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 can 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.
For rack models 961, 96E see Table 3.

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-12 (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-14 (I/O enclosure Models 941, 94E, 951, 95E, 961, 96E)
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-4 (DASD fan tray)
U2`nnn`.mmm.sssssss-Cx (x=3,4)	Fan sense card	MAP1240 Section-5 (fan sense card)
U2`nnn`.mmm.sssssss-C6	Local remote switch card / zSeries local remote switch card	MAP1240 Section-6 (local remote or zSeries local remote switch card)
U2`nnn`.mmm.sssssss-Ex (x=1,2)	Primary power supply (PPS)	MAP1240 Section-7 (primary power supply, PPS)
U2`nnn`.mmm.sssssss-C5	Rack identity card	MAP1240 Section-9 (rack identity card)
U2`nnn`.mmm.sssssss-Cx (x=1,2)	Rack Power Control (RPC) card	MAP1240 Section-10 (RPC card)
Storage enclosure
U2107.D01.sssssss	Multiple FRUs in enclosure	MAP1240 Section-11 (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 might 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-12 (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-14 (I/O enclosure Models 941, 94E, 951, 95E, 961, 96E)
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-6 (local remote or zSeries local remote switch card)
U2`nnn`.mmm.sssssss-Ex (x=1,2)	Primary power supply (PPS)	MAP1240 Section-7 (primary power supply, PPS)
U2`nnn`.mmm.sssssss-C5	Rack identity card	MAP1240 Section-9 (rack identity card)
U2`nnn`.mmm.sssssss-Cx (x=1,2)	RPC card	MAP1240 Section-10 (RPC card)
Storage enclosure
U2107.D02.sssssss	Multiple FRUs in enclosure	MAP1240 Section-15 (storage enclosure [12 or 24 DDM slots] Model 951, 95E, 961, 96E)
Storage Facility Image (SFI)
2nnn.951.ssssss1	(Not a FRU)
Note: 1. A CEC complex might have more than one CEC enclosure, each with a unique ssssss.

Table 3. Model 961, 96E FRU identify LED locations
MTMS	FRU Description	Identify LED location
CEC enclosure
U78AA.001.sssssss	Multiple FRUs in enclosure	MAP1240 Section-13 (CEC Enclosure Model 961)
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-14 (I/O enclosure Models 941, 94E, 951, 95E, 961, 96E)
Rack and power
2nnn.mmm.sssssss		Figure 2
U2nnn.mmm.sssssss-Ey-Exx (y=1,2; xx=10, 11,12)	DC-UPS battery service module set (BSM set)	MAP1240 Section-3 (DC-UPS battery service module set)
U2nnn.mmm.sssssss-C6	Local remote switch card / zSeries local remote switch card	MAP1240 Section-6 (local remote or zSeries local remote switch card)
U2nnn.mmm.sssssss-Ex-E1 (x=1,2)	DC-UPS DC supply unit (DSU) and fan assembly	MAP1240 Section-8 (DC-UPS DC supply unit)
U2nnn.mmm.sssssss-C5	Rack identity card	MAP1240 Section-9 (rack identity card)
U2nnn.mmm.sssssss-Cx (x=1,2)	RPC card	MAP1240 Section-10 (RPC card)
Storage enclosure
U2107.D02.sssssss	Multiple FRUs in enclosure	MAP1240 Section-15 (storage enclosure [12 or 24 DDM slots] Model 951, 95E, 961, 96E)
U2107.D03.sssssss	Multiple FRUs in enclosure	MAP1240 Section-16 (storage enclosure [30 DDM slots] Model 961, 96E)
Storage Facility Image (SFI)
2nnn.961.ssssss1	(Not a FRU)

MAP1240 Section-2 (battery enclosure)

Procedure

At the rear of the rack, find the battery enclosure with the flashing 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 (DC-UPS battery service module set)

Procedure

At the front of the rack, find the primary battery service module (Ey-Exx-E1) with the flashing fault/identify LED Callout label 2

Figure 5. Battery service module, primary, locations (front)

Figure 6. Battery service module (BSM) set locations (front)

MAP1240 Section-4 (DASD fan tray)

Procedure

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

Figure 7. Models 92x, 93x, 92E, 9A2, 9B2, 9AE, 941 "Identify" indicator (LED) for a DASD fan tray

MAP1240 Section-5 (fan sense card)

Procedure

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

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

Figure 8. Models 92x, 93x, 9A2, 9B2, 941 LEDs on the fan sense cards

MAP1240 Section-6 (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 flashing identify LED Callout label 1

(Figure 9) or LED Callout label 3

(Figure 10).

Figure 9. 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 10. Model 951, 961 "Identify" indicators (LEDs) for local remote and zSeries local remote switch cards

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

MAP1240 Section-7 (primary power supply, PPS)

Procedure

At the front of the rack, find the primary power supply with the flashing identify LED .
- E1 location is upper PPS
- E2 location is lower PPS
Figure 11. 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 12. "Identify" indicator (LED) for a 5/12V DDM power module
The booster power module identify LED is at the rear of the rack.
Figure 13. 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 14. "Identify" indicator (LED) for a 208V DDM power module

MAP1240 Section-8 (DC-UPS DC supply unit)

Procedure

At the rear of the rack, find the DC-UPS DSU with the flashing DSU service LED Callout label 6

Figure 15. LEDs on the DC-UPS DC Supply Unit (DSU), rear of rack

MAP1240 Section-9 (rack identity card)

Procedure

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

Figure 16. Model 941 "Identify" indicator (LED) on the rack identity card

Figure 17. Models 951, 95E "Identify" indicator (LED) on the rack identity card

MAP1240 Section-10 (RPC card)

Procedure

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

Models 941, 951: or (See Figure 18.)
Model 961: (See Figure 19.)

Figure 18. "Identify" indicator (LED) for an RPC card (Models 941, 951)

Figure 19. LEDs on the RPC cards (Model 961)

MAP1240 Section-11 (storage enclosure [16 DDM slots] Models 92x, 93x, 92E, 9A2, 9B2, 9AE, 941)

Procedure

At the front and rear of the rack, find the storage enclosure with the enclosure identify LED Flashing on one or both FCIC cards.
Figure 20. LEDs on a Fibre Channel interface card (at a storage enclosure)
The FCIC card "identify" indicator (LED) is shown in Figure 20.
The DDM "Identify" indicator (LED) is shown in Figure 21.
Figure 21. LEDs on a disk drive module (DDM)

MAP1240 Section-12 (CEC Enclosure Models 941, 951)

Procedure

At the front of the rack, find the CEC enclosure with the enclosure identify LED Flashing.
Figure 22. The "Identify" indicator (LED) for a CEC enclosure (front)

Find the FRU identify LED location that is flashing using Table 4 and Figure 23 through Figure 25.

Table 4. FRU identify LED locations on the CEC enclosure
FRU	Reference
CEC enclosure	Figure 23, LED ; Figure 24, LED
CEC enclosure control panel	No LED, use location code
CEC enclosure disk drive	Figure 23, LED
CEC enclosure disk drive backplane assembly	Figure 23, LED
CEC enclosure fan	Figure 23, LED
CEC enclosure I/O backplane assembly	Figure 24, LED
CEC enclosure PCIe four port card	Figure 25, LED
CEC enclosure PCIe single port card	Figure 25, LED
CEC enclosure PCIe single port card (slot 5)	Figure 25, LED
CEC enclosure power supply	Figure 24, LED
CEC enclosure RIO card	Figure 25, LED
CEC enclosure RIO card ports 1 and 2	Figure 25, LED
CEC enclosure service processor card	Figure 24, LED
CEC enclosure system processor backplane assembly	Figure 23, 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 23, 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 24, LED

Figure 23. LEDs on the CEC enclosure (rear)

Figure 24. LED CEC enclosure right rear

Figure 25. LED CEC enclosure left rear

MAP1240 Section-13 (CEC Enclosure Model 961)

Procedure

At the front of the rack, find the CEC enclosure with the enclosure identify LED lit solid. The identify LED is item in Figure 27.
Figure 26. CEC enclosure front LED indicators

Figure 27. CEC enclosure control panel assembly

Find the FRU identify LED location using Table 5 and the figures in this section.

Table 5. FRU identify LED locations on the CEC enclosure (Model 961)
FRU	Reference
CEC enclosure	Figure 26, LED Figure 27, LED Figure 29, LED (identify is solid blue LED)
CEC enclosure control panel	No LED, use location code
CEC enclosure disk drive	Figure 26, LED
CEC enclosure disk drive backplane	Figure 26, LED
CEC enclosure Ethernet two-port card	Figure 28, LED
CEC enclosure fan	Figure 26 , LED Figure 28, LED
CEC enclosure I2C interface card, with CEC enclosure I2C passive connector card	No LED, use location code
CEC enclosure memory card	Figure 28, LED Figure 30, LED
CEC enclosure memory module	Figure 30, LED (press blue button to identify)
CEC enclosure PCIe three-port card	Figure 28, LED
CEC enclosure PCIe single-port card	Figure 28, LED
CEC enclosure power supply	Figure 29, LED
CEC enclosure processor module	Figure 28, LED
CEC enclosure RS-485 serial interface card	Figure 28, LED
CEC enclosure system backplane	Figure 28, LED
CEC enclosure voltage regulator module	Figure 28, LED
CEC enclosure time of day battery	Figure 28, LED
CEC enclosure VPD card	Figure 28, LED

Figure 28. CEC enclosure top LED indicators

Figure 29. CEC enclosure rear LED indicators

Figure 30. Memory card and memory module LED indicators

MAP1240 Section-14 (I/O enclosure Models 941, 94E, 951, 95E, 961, 96E)

Procedure

At front of rack, note the I/O enclosure location codes, as shown in Figure 31.
Figure 31. I/O enclosure locations (front)
Note: Locations 1B5, 1B6, 1B7 and 1B8 exist in DS8870 all-flash only
Find the I/O enclosure with the I/O enclosure identify blue LED on solid. See Figure 32 and Figure 33.
Figure 32. "Identify" indicator (LED) for an I/O enclosure (front)

Figure 33. "Identify" indicator (LED) for an I/O enclosure (rear)

Find the FRU identify LED location that is flashing using Table 6.

Table 6. FRU identify LED locations on the I/O enclosure
FRU	Reference
I/O enclosure device adapter card	Figure 34, LED
I/O enclosure Fibre Channel host card, long wave	Figure 34, LED
I/O enclosure Fibre Channel host card, short wave	Figure 34, LED
I/O enclosure fan	Figure 35, LED
I/O enclosure identify	Figure 32, LED Figure 33, LED
I/O enclosure power supply	Figure 35, LED
I/O enclosure PCIe/SPCN card	Figure 34, LED
I/O enclosure PCIe storage interface card	Figure 34, LED

Figure 34. LEDs on the CEC enclosure (rear)

Figure 35. LEDs on the I/O enclosure (front)

MAP1240 Section-15 (storage enclosure [12 or 24 DDM slots] Model 951, 95E, 961, 96E)

Procedure

At the front of the rack, find the storage enclosure with the enclosure identify LED lit solid.
Figure 36. 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 Flashing.
Figure 37. Disk drive modules (DDMs) LEDs (24 DDM slot storage enclosure)

Figure 38. 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 Flashing.
Figure 39. 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 Flashing.
Figure 40. Storage enclosure power supply LEDs

MAP1240 Section-16 (storage enclosure [30 DDM slots] Model 961, 96E)

Procedure

At the front of the rack, find the storage enclosure with the enclosure identify LED lit solid. See Figure 41.
Figure 41. Storage enclosure midplane LEDs (front view)
To locate a DDM: at the front of the rack, find the DDM with the identify LED Flashing. See Figure 41.
To locate a RAID controller card, at the rear of the rack find the card with the attention/identify LED Flashing.
Figure 42. Storage enclosure RAID controller card (rear view)
To locate a storage enclosure power supply: at the rear of the rack, find the storage enclosure power supply with the attention/identify LED Flashing.
Figure 43. Storage enclosure power supply and midplane (rear view)