Oracle: Save PDB state for all instances in RAC environment
Depends on where you use the command.

It works on all instances from the root container:

srvctl start database -db wagon

SQL&gt; select inst_id, con_id, name, recovery_status, open_mode from gv$pdbs where name = 'PDB1';

   INST_ID     CON_ID NAME       RECOVERY OPEN_MODE
---------- ---------- ---------- -------- ----------
         2          3 PDB1       ENABLED  MOUNTED
         1          3 PDB1       ENABLED  MOUNTED

SQL&gt; alter pluggable database pdb1 open instances=all;

Pluggable database altered.

SQL&gt; select inst_id, con_id, name, recovery_status, open_mode from gv$pdbs where name = 'PDB1';

   INST_ID     CON_ID NAME       RECOVERY OPEN_MODE
---------- ---------- ---------- -------- ----------
         1          3 PDB1       ENABLED  READ WRITE
         2          3 PDB1       ENABLED  READ WRITE

SQL&gt; alter pluggable database pdb1 save state instances=all;

Pluggable database altered.

srvctl stop database -db wagon; srvctl start database -db wagon

SQL&gt; select inst_id, con_id, name, recovery_status, open_mode from gv$pdbs where name = 'PDB1';

   INST_ID     CON_ID NAME       RECOVERY OPEN_MODE
---------- ---------- ---------- -------- ----------
         1          3 PDB1       ENABLED  READ WRITE
         2          3 PDB1       ENABLED  READ WRITE


But it does not work on all instances when issued from the PDB itself:

SQL&gt; alter session set container=pdb1;

Session altered.

SQL&gt; alter pluggable database pdb1 close instances=all;

Pluggable database altered.

SQL&gt; alter pluggable database pdb1 save state instances=all;

Pluggable database altered.

srvctl stop database -db wagon; srvctl start database -db wagon

SQL&gt; select inst_id, con_id, name, recovery_status, open_mode from gv$pdbs where name = 'PDB1';

   INST_ID     CON_ID NAME       RECOVERY OPEN_MODE
---------- ---------- ---------- -------- ----------
         2          3 PDB1       ENABLED  READ WRITE
         1          3 PDB1       ENABLED  MOUNTED