Data recovery from backup

Hello.
Could you please let me know the recovery steps of the data volume?
I tested the following steps on my HANA (Rev.18), but I could not recover my data due to the error.
1. Start HANA studio, right-click on the host name in the 'Navigator' pane, and select 'Backup'.
2. Go through the backup wizard, and create 'COMPLETE_DATA_BACKUP' files in '/usr/sap/<SID>/HDB00/backup/data'.
3. Confirm that the 'COMPLETE_DATA_BACKUP_databackup_N_M' files exist in the above directory.
4. Right-click on the host name in the 'Navigator' pane in HANA Studio, and select 'Stop'.  Select 'Soft' shutdown.
5. Confirm that the HANA DBMS stops.
6. Start the 'GNOME Terminal', go to the '/usr/sap/<SID>/SYS/global/hdb/data' directory, and delete (or rename) the 'mnt00001' directory.
7. Right-click on the host name in the 'Navigator' pane in HANA Studio, and select 'Recovery'.
8. Start the recovery with un-checking the 'Recovery of the Log Entries' option.
9. The data recovery for 'Name Server' stops at 50%, and the following error is shown.
     Recovery of system <SID> failed
     The service 'nameserver' at 'NODE:30001' responsible for the volume '1' does crash.
Thank you,
-mamoru

Hello,
still thinking what might be the reason for error and got another idea (but without the recovery log it is just pure guess):
6. Start the 'GNOME Terminal', go to the '/usr/sap/<SID>/SYS/global/hdb/data' directory, and delete (or rename) the 'mnt00001' directory.
If you renamed/deleted whole directory - maybe the recovery process was missing the directory and was not able to recreate it... (I had similar issue with log destination when I decided to have it in other than standard destination. Installer was not able to create it and was failing until I created the directory manually.)
However I am still wondering what exactly is mnt00001 directory for...
From SAP HANA Studio it is apparent that:
nameserver (does not have any data file created at specified location) ...is assigned path:
/usr/sap/<SID>/SYS/global/hdb/data/hdb00001
indexserver ...is assigned path
/usr/sap/<SID>/SYS/global/hdb/data/hdb00002
statisticsserver ...is assigned path
/usr/sap/<SID>/SYS/global/hdb/data/hdb00003
However nowhere is written what exactly is stored in following directories:
/usr/sap/<SID>/SYS/global/hdb/data/hdb00002_backup
/usr/sap/<SID>/SYS/global/hdb/data/hdb00003_backup
/usr/sap/<SID>/SYS/global/hdb/data/mnt00001/hdb00001
/usr/sap/<SID>/SYS/global/hdb/data/mnt00001/hdb00002
/usr/sap/<SID>/SYS/global/hdb/data/mnt00001/hdb00003
/usr/sap/<SID>/SYS/global/hdb/data/mnt00001/hdb00001_backup
Does anyone know? I was not able to find this information.
Similar situation is in log area...
Tomas

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