Hi I have found the following in nameserver_<hostname> trace file:

============================================================================

[8818]{-1}[-1/-1] 2016-07-25 08:46:28.770620 i Basis            TraceStream.cpp(00467) : ==== Starting hdbnameserver, version 1.00.121.00.1466466057 (fa/hana1sp12), build linuxx86_64 c2be2aaf4b39603589c0db86f2d769302d2b15de 2016-06-21 01:54:21 ld7272 gcc (SAP release 20151217, based on SUSE gcc48-4.8.5-24.1) 4.8.5

[8818]{-1}[-1/-1] 2016-07-25 08:46:28.770968 i Basis            TraceStream.cpp(00469) : MaxOpenFiles: 1048576

[8818]{-1}[-1/-1] 2016-07-25 08:46:28.770973 i Basis            TraceStream.cpp(00471) : Server Mode: L2 Delta

[8818]{-1}[-1/-1] 2016-07-25 08:46:28.770988 i Basis            ProcessorInfo.cpp(00733) : Using GDT segment limit to determine current CPU ID

[8818]{-1}[-1/-1] 2016-07-25 08:46:28.770989 i Basis            Timer.cpp(00642) : Using RDTSC for HR timer

[8818]{-1}[-1/-1] 2016-07-25 08:46:28.770991 i Memory           AllocatorImpl.cpp(00481) : Allocators activated

[8818]{-1}[-1/-1] 2016-07-25 08:46:28.770993 i Memory           AllocatorImpl.cpp(00497) : Using big block segment size 268435456

[8835]{-1}[-1/-1] 2016-07-25 08:46:29.006809 i assign           TREXNameServer.cpp(02144) : assign as master nameserver. assign to volume 1 started

[8835]{-1}[-1/-1] 2016-07-25 08:46:29.008504 w FileIO           FileSystem.cpp(00103) : Unknown file system "rootfs" for "/usr/sap/HN1/SYS/global/hdb/backint/"

[8835]{-1}[-1/-1] 2016-07-25 08:46:29.008575 i FileIO           FileStatistics.cpp(00357) : FileFactoryConfiguration::initial(path="/usr/sap/HN1/SYS/global/hdb/backint/"[DATA_BACKUP], async_write_submit_active=auto,async_write_submit_blocks=all,async_read_submit=on,num_submit_queues=1,num_completion_queues=1,size_kernel_io_queue=512,max_parallel_io_requests=64,min_submit_batch_size=16,max_submit_batch_size=64)

[8835]{-1}[-1/-1] 2016-07-25 08:46:29.008656 i FileIO           FileStatistics.cpp(01159) : SubmitQueueConfiguration::initial(path="/usr/sap/HN1/SYS/global/hdb/backint/"[DATA_BACKUP], num_submit_queues=1,size_kernel_io_queue=512,max_parallel_io_requests=64,min_submit_batch_size=16,max_submit_batch_size=64)

[8835]{-1}[-1/-1] 2016-07-25 08:46:29.009156 i FileIO           FileStatistics.cpp(01370) : CompletionQueueConfiguration::initial(path="/usr/sap/HN1/SYS/global/hdb/backint/"[DATA_BACKUP], num_completion_queues=1,size_kernel_io_queue=512,max_parallel_io_requests=64)

[8835]{-1}[-1/-1] 2016-07-25 08:46:29.009713 i FileIO           FileStatistics.cpp(00357) : FileFactoryConfiguration::initial(path="/usr/sap/HN1/SYS/global/hdb/backint/"[LOG_BACKUP], async_write_submit_active=auto,async_write_submit_blocks=all,async_read_submit=on,num_submit_queues=1,num_completion_queues=1,size_kernel_io_queue=512,max_parallel_io_requests=64,min_submit_batch_size=16,max_submit_batch_size=64)

[8835]{-1}[-1/-1] 2016-07-25 08:46:29.009773 i FileIO           FileStatistics.cpp(01159) : SubmitQueueConfiguration::initial(path="/usr/sap/HN1/SYS/global/hdb/backint/"[LOG_BACKUP], num_submit_queues=1,size_kernel_io_queue=512,max_parallel_io_requests=64,min_submit_batch_size=16,max_submit_batch_size=64)

[8835]{-1}[-1/-1] 2016-07-25 08:46:29.010266 i FileIO           FileStatistics.cpp(01370) : CompletionQueueConfiguration::initial(path="/usr/sap/HN1/SYS/global/hdb/backint/"[LOG_BACKUP], num_completion_queues=1,size_kernel_io_queue=512,max_parallel_io_requests=64)

[8835]{-1}[-1/-1] 2016-07-25 08:46:29.012744 f topology         Topology.cpp(00265) : persistence does not exist @ /run/media/root/1c8c39cb-5184-48f0-8f65-2049cf1ea3e8/hana/data/HN1/mnt00001/hdb00001/

[8835]{-1}[-1/-1] 2016-07-25 08:46:29.012833 f NameServer       TREXNameServer.cpp(03884) : persistence initialization failed -> stopping instance ...

[8818]{-1}[-1/-1] 2016-07-25 08:46:29.013166 i Service_Shutdown TrexService.cpp(00803) : Preparing for shutting service down

[8835]{-1}[-1/-1] 2016-07-25 08:46:29.016061 e Basis            TREXNameServer.cpp(03917) : Process exited due to an error via explicit exit call with exit code 1 , no crash dump will be written

[8844]{-1}[-1/-1] 2016-07-25 08:46:29.018104 i assign           TREXNameServer.cpp(03540) : shutdown, unassign from volume 1

[8844]{-1}[-1/-1] 2016-07-25 08:46:29.018231 i failover         TREXNameServer.cpp(04532) : setinactive(saphn1) but no failover manager

============================================================================

I searched and I found that the path:

/run/media/root/1c8c39cb-5184-48f0-8f65-2049cf1ea3e8/hana/data/HN1/mnt00001/hdb00001/

exists on server.