2913438 - Initializing config root for NwConfigStorage failed error during system startup

After performing a system restart, the java instances are not coming up.

In the std_serverx.out file, we can see that the Application Server Java cannot be started due to sap.com/com.sap.aii.igw.node.manager.svc startup failure.

Service [com.sap.aii.igw.node.manager.svc] start ================= ERROR =================

CSN Component [BC-XI-IGW], DC Name [sap.com/com.sap.aii.igw.node.manager.svc]
com.sap.engine.frame.ServiceException: Initializing config root for NwConfigStorage failed
   at com.sap.aii.igw.nm.security.ServiceFrameImpl.start(ServiceFrameImpl.java:224)
   at com.sap.engine.core.service630.container.ServiceRunner.startFrame(ServiceRunner.java:165)
   at com.sap.engine.core.service630.container.ServiceRunner.startService(ServiceRunner.java:118)
   at com.sap.engine.core.service630.container.ServiceRunner.run(ServiceRunner.java:65)
   at com.sap.engine.frame.core.thread.Task.run(Task.java:73)
   at com.sap.engine.core.thread.impl5.SingleThread.execute(SingleThread.java:178)
   at com.sap.engine.core.thread.impl5.SingleThread.run(SingleThread.java:316)
Caused by: com.sap.aii.igw.nm.storage.StorageException: Initializing config root for NwConfigStorage failed
   at com.sap.aii.igw.nm.storage.nw.NwConfigStorage.ensureConfigRootsExist(NwConfigStorage.java:102)
   at com.sap.aii.igw.nm.storage.nw.NwConfigStorage.<init>(NwConfigStorage.java:81)
   at com.sap.aii.igw.nm.storage.nw.NwConfigStorage.<init>(NwConfigStorage.java:62)
   at com.sap.aii.igw.nm.security.ServiceFrameImpl.start(ServiceFrameImpl.java:217)
... 6 more
Caused by: com.sap.aii.igw.nm.security.nw.NwConfigurationHandlerException: Unable to acquire configuration.
   at com.sap.aii.igw.nm.security.nw.NwConfigurationHandler.openRootConfiguration(NwConfigurationHandler.java:60)
   at com.sap.aii.igw.nm.security.nw.NwConfigurationHandler.openRootConfigurationForWrite(NwConfigurationHandler.java:29)
   at com.sap.aii.igw.nm.security.nw.NwConfigurationHandler.ensureConfigHierarchyExists(NwConfigurationHandler.java:213)
   at com.sap.aii.igw.nm.storage.nw.NwConfigStorage.ensureConfigRootsExist(NwConfigStorage.java:91)
... 9 more

• SAP NetWeaver 7.5

Process Integration,  PI,  Process Orchestration 7.5, PI 7.5, PO 7.5, XI, AEX, cache, com.sap.aii.af.cpa.svc, DB, AS , KBA , BC-XI-CON-AFW , J2EE Adapter Framework , Problem