负责维护的p670最近errpt一直报错，检查发现fcs0和fcs1的微码级别不一样，
fcs0的微码级别较高，但是在errpt里面频繁报错：
2F3E09A4 0224175406 I H fcs0 REPAIR ACTION
D5385D18 0224072906 T H hdisk8 ARRAY OPERATION ERROR
D5385D18 0224064506 T H hdisk8 ARRAY OPERATION ERROR
....
D5385D18 0222203006 T H hdisk8 ARRAY OPERATION ERROR
B8FBD189 0220155006 T S fscsi0 SOFTWARE PROGRAM ERROR
825849BF 0220155006 T H fcs0 ADAPTER ERROR
825849BF 0220155006 T H fcs0 ADAPTER ERROR
B8FBD189 0220152906 T S fscsi0 SOFTWARE PROGRAM ERROR
825849BF 0220152906 T H fcs0 ADAPTER ERROR
3074FEB7 0220152906 T H fscsi0 ADAPTER ERROR

察看详细报错信息:
.....

说明
SOFTWARE PROGRAM ERROR

可能原因
ADAPTER MICROCODE
SOFTWARE PROGRAM
SOFTWARE DEVICE DRIVER

失败原因
ADAPTER MICROCODE
SOFTWARE PROGRAM
SOFTWARE DEVICE DRIVER

推荐的操作
IF PROBLEM PERSISTS THEN DO THE FOLLOWING
CONTACT APPROPRIATE SERVICE REPRESENTATIVE

.........

察看FCS0的微码级别:

Part Number.................80P6415
EC Level....................A
Serial Number...............1E40606BAA
Manufacturer................001E
FRU Number.................. 80P6416
Device Specific.(ZM)........3
Network Address.............10000000C93D0EAE
ROS Level and ID............02E01932
Device Specific.(Z0)........2003806D
Device Specific.(Z1)........00000000
Device Specific.(Z2)........00000000
Device Specific.(Z3)........03000909
Device Specific.(Z4)........FF601315
Device Specific.(Z5)........02E01932
Device Specific.(Z6)........06631932
Device Specific.(Z7)........07631932
Device Specific.(Z8)........20000000C93D0EAE
Device Specific.(Z9)........HS1.90X2
Device Specific.(ZA)........H1D1.90X2
Device Specific.(ZB)........H2D1.90X2

FCS1的微码级别:
Part Number.................80P6415
EC Level....................A
Serial Number...............1E40606BAA
Manufacturer................001E
FRU Number.................. 80P6416
Network Address.............10000000C93D0EAE
ROS Level and ID............02E01871
Device Specific.(Z0)........2003806D
Device Specific.(Z1)........00000000
Device Specific.(Z2)........00000000
Device Specific.(Z3)........03000909
Device Specific.(Z4)........FF601231
Device Specific.(Z5)........02E01871
Device Specific.(Z6)........06631871
Device Specific.(Z7)........07631871
Device Specific.(Z8)........20000000C93D0EAE
Device Specific.(Z9)........HS1.81X1
Device Specific.(ZA)........H1D1.81X1
Device Specific.(ZB)........H2D1.81X1
Device Specific.(YL)........U1.9-P1-I1/Q1

所以决定把fcs0的微码级别降下来，看看：

1.下载微码pci.df1080f9-1-181x1.rpm到/etc/microcode里面
2. rpm -ihv --ignoreos pci.df1080f9-1-181x1.rpm
3.降级微码：
1)Enter
diag
2)Select
Task Selection (Diagnostics, Advanced Diagnostics, Service Aids, etc.)
3)Select
Download Microcode
4)Select the device returned for above
fcs*
5)Press enter when prompted to download the microcode
4.验证是否安装微码成功
lscfg -vl fcs0

Device Specific.(Z9)........HS1.81X1
Device Specific.(ZA)........H1D1.81X1
Device Specific.(ZB)........H2D1.81X1

5.观察ERRPT里面没有相关报错了