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                                                    SUN M8000主机 IOU板卡硬件更换

一、   故障现象

1.  日志分析

XSCF> showstatus

*   IOU#0 Status:Degraded;

XSCF> showlogs -v error

    Date: May 24 20:44:22 CST 2019     Code: 80002000-33010000-0167058a00000000

    Status: Alarm                  Occurred: May 24 20:44:20.367 CST 2019

    FRU: /IOU#0

    Msg: DDC configuration error. DDC wrongly installed(detector=5)

Date: May 25 19:09:03 CST 2019     Code: 80006000-33010000-0167058a00000000

    Status: Alarm                  Occurred: May 25 19:08:38.909 CST 2019

    FRU: /IOU#0

    Msg: DDC configuratin error. DDC wrongly installed(detector=5)

    通过showstatus命令可以看到IOU#0已为降级状态，IOU上装有硬盘、HBA卡以及网卡等备件，IOU#0为降级状态则运行不稳定，存在再次异常宕机隐患，一旦发生故障会影响操作系统正常运行，需要及时更换IOU#0模块。

2.  故障部件示意图

IOU#0在M8000服务器上的安装位置如下图（红色方框中的部件）：

二、  实施过程

1.  确定故障件Domain

当前M8000服务器Domain划分如下表：

从Domain划分可见，发生故障的CMU#1和IOU#0都属于Domain 0。

2.  确定版本

XSCF>  version -c xcp

XSCF#0 (Active )

XCP0 (Current): 1121

XCP1 (Reserve): 1121

XSCF#1 (Standby)

XCP0 (Current): 1121

XCP1 (Reserve): 1121

3.  硬件更换

XSCF> showstatus 

*   IOU#0 Status:Degraded;

XSCF> replacefru

----------------------------------------------------------------

Maintenance/Replacement Menu

Please select a type of FRU to be replaced.

1. CMU/IOU    (CPU Memory Board Unit/IO Unit)

2. FAN        (Fan Unit)

3. PSU        (Power Supply Unit)

4. XSCFU      (Extended System Control Facility Unit)

5. DDC_A      (DDC for BP_A)

----------------------------------------------------------------------

Select [1-5|c:cancel] :1

-----------------------------------------------------------------

Maintenance/Replacement Menu

Please select whether to replace a CMU only, an IOU only,

or both a CMU and an IOU.

 1. Replace CMU only.

 2. Replace IOU only.

 3. Replace both CMU and IOU.

----------------------------------------------------------------

Select [1-3|b:back] :2

----------------------------------------------------------------------

Maintenance/Replacement Menu

Please select an IOU to be replaced.

                  DomainID

No. FRU           XSB#0 XSB#1 XSB#2 XSB#3 Power Status

--- ------------- ----------------------- ----- ---------------

 1. IOU#0             0     0     0     0  Off   Degraded

 2. IOU#1             0     0     0     0  Off   Not installed

 3. IOU#2             1     1     1     1  On    Normal

 4. IOU#3             1     1     1     1  On    Not installed

----------------------------------------------------------------------

Select [1-4|b:back] :1

----------------------------------------------------------------------

Maintenance/Replacement Menu

Status of the selected FRU.

FRU           Status

------------- --------

IOU#0         Degraded

----------------------------------------------------------------------

You are about to replace IOU#0.

Do you want to continue?[r:replace|c:cancel] :r

Please confirm the Ready LED is not lit and that the Check LED is

blinking.

If this is the case, please replace IOU#0.开始拔出故障IOU板块，将硬盘、HBA卡等配件按顺序插入新的IOU板卡中，将新的IOU板卡插入SUN M8000，再进行下一步的操作

After replacement has been completed, please select[f:finish] :f

To ensure correct operation, diagnostic tests should be run on

IOU#0.[d:diagnose|s:skip] :d

Diagnostic tests for IOU#0 have started.

[This operation may take up to 60 minute(s)]

(progress scale reported in seconds)

   0.....  30.....  60.....  90..... 120..... 150..... 180..... 210.....done

----------------------------------------------------------------------

Maintenance/Replacement Menu

Status of the selected FRU.

FRU           Status

------------- --------

IOU#0         Normal          #IOU板状态正常

----------------------------------------------------------------------

The replacement of IOU#0 has completed normally.[f:finish] :f  #完成配件更换

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