2871643 - HANA no Longer Start - Error Cannot Read Persistence Encryption Root Key

After a normal shutdown of HANA system, the HANA DB does not start.

The issue reported in name server alert file is

[12604]{-1}[-1/-1] 2019-12-07 11:56:28.431676 e Crypto EncryptionCallbackImpl.cpp(00138) : isSecureStoreAvailable: cannot read persistence encryption root key (exception 1: no.301103 (Crypto/RootKeyManager/RootKeyManagerSsfs.cpp:337) exception 301103: RawRootKeyStoreReader::read: SSFS-4218: Record with key "HDB_SERVER/PERSISTENCE/ROOTKEY" not found in secure storage <-- SSFS-4215: Data file "/usr/sap/DLG/SYS/global/hdb/security/ssfs/SSFS_DLG.DAT" exists, but does not contain the requested entry exception throw location:

1: 0x00007fd0d7a30ac7 in Crypto::RootKeyManagerSsfs::getKeyForEncryption

2: 0x00007fd0d7aad670 in Crypto::Services::PersistenceEncryption::EncryptionCallbackImpl::isSecureStoreAvailable

3: 0x00007fd0d602add2 in DAEncryption::EncryptionManagerImpl::checkKeyPage

4: 0x00007fd0d5f4ede4 in DataAccess::SavepointImpl::loadRestartPage

5: 0x00007fd0d5d7c24d in DataAccess::PersistenceManagerImpl::prepareOpen

6: 0x00007fd0d5d2dde7 in DataAccess::PersistenceManager::open

7: 0x00007fd0da1ed87b in PersistenceLayer::PersistenceSystem::initialize

8: 0x00007fd0da20d6a3 in PersistenceLayer::PersistenceFactory::initPersistence

9: 0x00007fd0f4681bd4 in PersistenceController::startup

10: 0x00007fd0f75013c8 in NameServer::Topology::initPersistence

11: 0x00007fd0f75e597f in NameServer::TREXNameServer::loadTopology

12: 0x00007fd0f7689f80 in NameServer::TREXNameServer::assign

13: 0x000055a585a221ef in TRexAPI::TREXIndexServer::assign

14: 0x000055a585a2b80a in TRexAPI::AssignThread::run

15: 0x00007fd0d77426b2 in TrexThreads::PoolThread::run

16: 0x00007fd0d77450b6 in TrexThreads::PoolThread::run

17: 0x00007fd0d4a36dc6 in Execution::Thread::staticMainImp

18: 0x00007fd0d4a37526 in Execution::Thread::staticMain

19: 0x00007fd0d4a341b9 in Execution::pthreadFunctionWrapper

20: 0x00007fd0d450e724 in start_thread+0xc0 (libpthread.so.0)

21: 0x00007fd0d31a2e8d in __clone+0x69 (libc.so.6) )

SAP HANA 2.0

KBA , HAN-DB , SAP HANA Database , Problem