Windows Cluster Failover Issue (Windows Server 2008 R2)

Question

Issue = Windows Clustering Failover Issue

OS = (Windows Server 2008 R2)

Application = SAP

Database = Oracle 11g

Dear Experts,

There are two nodes of our SAP Application, and we have implement clustering on our drives, if Node 1 is unavailable then drives automatically move to Node 2 .Drives are from SAN and services will start from node 2 to avoid downtimes.

But unfortunately our fiber switch of SAN was malfunctioned and cluster move the drives to node 2 but the services wont started from node 2. we rectify the fiber switch issue then we test the systems now drives are moved properly on node 2 but still services wont get their paths which are define on clustered drives.

Unfortunately one more time downtime occurred but this time everything was working fine, switch was ok, but drives automatically moved to node 2 except quorum drive. i checked the event viewer there i found below error.

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Faulting application name: rhs.exe, version: 6.1.7601.17514, time stamp: 0x4ce79820

Faulting module name: KERNELBASE.dll, version: 6.1.7601.24384, time stamp: 0x5c6e248c

Exception code: 0xc0000005

Fault offset: 0x000000000000be0d

Faulting process id: 0x1e20

Faulting application start time: 0x01d8c929a26c45c3

Faulting application path: C:\Windows\Cluster\rhs.exe

Faulting module path: C:\Windows\system32\KERNELBASE.dll

Report Id: 5ad11daa-35c8-11ed-beec-6cae8b2f7eac

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Answer 1

Hi SyedMoizAkhtar,

I will give you advice from the following points:

1. Fix Registry
   A corrupt registry file can cause serious problems in your system, including this error code. If you have a backup of your registry files, you can restore your system's registry and fix the problem. However, modifying registry files is a bit complicated and can be dangerous to the system. Any invalid or inappropriate changes can have serious system consequences. Therefore, please backup your current registry file before making any changes. The operation steps are as follows:
   (1) Navigate to the following directory:
   HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows\AppInit_Dlls
   Double-click "LoadAppInit_DLLs", and change its value to 0, restart the system to check if there is any error popping up.
2. Use System File Checker
   System File Checker can help fix Windows system file corruption that might be causing this error.
   "win+r" and enter "cmd" to open the run window, enter the command "sfc /scannow", wait for its scan to complete, it will automatically detect corrupt system files and replace them with new files in the cache.
3. Turn off DEP
   Data Execution Prevention is a Windows in-built system-level memory protection feature that protects your system from damage caused by viruses and other security threats. However, some programs are not compatible with DEP feature in Windows and cause a Windows installation error 0xc0000005 error.
   The specific operation steps are as follows:
   (1) "win+r" and enter "sysdm.cpl", click Settings in Advanced;
   (2) Click on Data Execution Protection tab and click ‘Turn on DEP for all programs and services except those I select’;
   (3) Click ‘Add’ button and then browse and add all the executable (.exe) files that are causing the issue;
   (4) Click OK and restart the system.
4. Driver corruption may also cause such errors
   Open the command prompt in administrator mode, enter the command "chkdsk drive letter: /f /r", and press Enter.
   Note: Before doing anything, if you are not sure what has been changed, be sure to back up your data to avoid data loss.

Hope my answer can help you!

Best Regards,
Xu Gu