ORA-01157: cannot identify/lock data file 1 - see DBWR trace file

Hello All,

Thanks for your concern.

• Primary Server：
  • Oracle version: Oracle 12c
  • OS version: RHEL 7.4
  • SID: orcl
  • Hostname: erpdb
  • Datafile path: /erpdata/orcl/orcldata
• Standby Server：
  • Oracle version: Oracle 12c
  • OS version: RHEL 7.4
  • SID: stdorcl
  • Hostname: stderpdb
  • Datafile path: /erpdata/stdorcl/stdorcldata

I backed up these datafile of primary server to a NAS(Network Attached Storage)，and then the standby server got these datafile through sftp to the NAS.

On the standby server, I revised the datafile path of the two file: environmental variables(orcl_erpdb.env) and  initorcl.ora, from /erpdata/orcl/orcldata to