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SAP HANA file system error Analysis Report

Publication Date:  2018-07-05 Views:  278 Downloads:  0
Issue Description

Customer report the SAP HANA filesystem mistake.





Alarm Information

We find 2 disk alarms in hardware log

Handling Process

none

 

Root Cause

The are both in same DG DG01(Raid 5),so the DG01 do not working

There are some error code in phy link 24~31 in sasraidlog.txt.



  Phy 0~23 is hard disk slot 0~23,The other phy Number is link,  

 

 

phyID


 

 

0


 

 

1


 

 

2


 

 

3


 

 

4


 

 

5


 

 

6


 

 

7


 

 

8


 

 

9


 

 

10


 

 

11


 

 

12


 

 

13


 

 

14


 

 

15


 

 

16


 

 

17


 

 

18


 

 

19


 

 

20


 

 

21


 

 

22


 

 

slotID


 

 

0


 

 

1


 

 

2


 

 

3


 

 

4


 

 

5


 

 

6


 

 

7


 

 

8


 

 

9


 

 

10


 

 

11


 

 

12


 

 

13


 

 

14


 

 

15


 

 

16


 

 

17


 

 

18


 

 

19


 

 

20


 

 

21


 

 

22


 

The phyID 24~31 have many error code, They represent the problem on the link(include
the HDDs back plane,raid card and SAS cables ), The reason of the link errorcode may be poor cable contact, loose, dust, static electricity, part demage and so on.  
 

Solution

So we replace part on SAS link, For example 23HDDs back plane, raid card and SAS cables;

END