CPU Fan failed

[Musa I. S.]

Hi,

I got a report from SIM that one of the CPU's of my Itanium server has failed. How do I know which CPU it is.

[Torsten.]

Can you post the message?
What server model?

To get more information:

hp-ux:

# echo "sel dev 1;info;wait;il"|cstm

MP:

MP:CM> ps

[Sharma Sanjeev]

Hi Musa

Pls Post MP>CM>ps

Regards
Sanjeev

[Musa I. S.]

[rx7640] MP:CM> ps

Display detailed status of the selected MP bus device.


The following MP bus devices were found:
+---+----+----+-----+-----+-------+-----+
| | | | | | | |
| | |LAN\| Sys | | IO | |
|Cab| MP |SCSI|Bkpln|Cells|Chassis| BPS |
| # |M S|0 1| | 0 1 | 0 1 | 0 1 |
+---+----+----+-----+-----+-------+-----+
| 0 |* | *| * | * * | * * | * * |
+---+----+----+-----+-----+-------+-----+

You may display detailed power and hardware status for the following items:

T - Cabinet
S - System Backplane
G - MP (Core I/O)
P - IO Chassis
C - Cell
Select Device: c
Enter cell number: 0

HW status for Cell 0 : NO FAILURE DETECTED

Power status : on, no fault
Faults above are latched. They are cleared just before the cell is powered on.
Boot is not blocked
PDH memory is shared
Processor Compatibility : OK
RIO cable status : connected
RIO cable connection physical location : PCI Domain 0
Core cell is cell 1
Attention Led is off

PDHC status Leds : ****

CPU Module Slot 0 1 2 3
Populated P P
Local 48V Good * *
Power Enabled * *
Power Good * *
(* - True, P - Processor, T - Terminator)

| DIMM Presence |
| |
| Side: | A | B |
|Echelon: |01234567|01234567|
+---------+--------+--------+
| |* * |
1 1 1 1 1 1
VRM's 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
Present : * * * * * * * * * * * * * * * *
Enabled : * * * * * * * * * * * * * * * *
Pwr Good : * * * * * * * * * * * * * * * *

Front Side Bus Freq. : 200.25 MHz
CPU Core Freq. : 1600 MHz
CPU Part Number : 80543KC

System Boot Rom (SFW) firmware rev 005.024.000
PDH controller (PDHC) firmware rev B.023.003.030 built MON JUN 26 18:35:01 2006

[rx7640] MP:CM>

[SUDHAKAR_18]

Hi Musa,

MP>CM>PS ->take logs for cabinet
and attach the logs.

Regards,
SHR

[Torsten.]

Try the same for the other cell board and attach the result.

(this output is too hard to read due to the format).

[Musa I. S.]

Hello,

find attached PS Output.

[Sharma Sanjeev]

Hi Musa

You have Failed fan in Cell 0 fan 0

+-----------+------------+
Cell 0 | |
Populated | * * * |
Failing | |
Failed | * |

Regards
Sanjeev

[Torsten.]

Yes, that's correct.

Unlike other cell boards this one can have up to 5 fans, the fan mounted on CPU0 on cell 0 has failed and needs to be replaced (cpu module).

[Musa I. S.]

what effect will that failed fan have on system performance

[Sharma Sanjeev]

You may face some performance issue as this Fan is fixed on CPU

Regards
Sanjeev

[Jeeshan]

obviously this will take effect on performance level.

BTW, if you have service agreement with HP log a case and find their solution.

[Musa I. S.]

Thank you all. I have engaged HP Support. I will work with them.

All response are appreciated.

[sreekanthtm]

Hi,

See the * (Astric) symbol. means, Cpu0 in Cell0 failed and need to be replace. If ur not replacing the fan, CPU temperature will increase and the CPU will also fail. If it happens your srver will go through a reboot, while coming up, this perticular CPU will be marked as failed, and the server will run in degraded mode. Which will reduce server performance.


| Cell Fans |
| CPU C |
| 0 1 2 3 C |
+-----------+------------+
Cell 0 | |
Populated | * * * |
Failing | |
Failed | * |
Cell 1 | |
Populated | * * * * * |
Failing | |
Failed | |

Rgds
Sreekanth

[Asif Sharif]

Salam Musa,

As sreekanthtm said, i agree with him. What HP diagnosed? also check the parstatus and share your further findings with us.

Regards,
Asif Sharif

[Musa I. S.]

The Fan has been replaced. We noticed that the spring that holds the fan on the CPU was loose.

They were both replaced.

Thank you.

[Musa I. S.]

The Fan has been replaced. We noticed that the spring that holds the fan on the CPU was loose.

They were both replaced.