Change ASM Instance SYS ASMSNMP User Password

Here is the way to change ASM instance SYS/ASMSNMP user password in 12c.

$ asmcmd
ASMCMD> pwget --asm
+OCR_VOTE/orapwASM

ASMCMD> cd +OCR_VOTE
ASMCMD> ls -l orapwASM
Type     Redund Striped Time           Sys Name
PASSWORD UNPROT COARSE  AUG 08 17:00:00 N  orapwASM => +OCR_VOTE/ASM/PASSWORD/pwdasm.256.919359249

ASMCMD> cd +OCR_VOTE/ASM/PASSWORD
ASMCMD> ls -l
Type     Redund Striped Time            Sys Name
PASSWORD UNPROT COARSE  AUG 08 17:00:00 Y   pwdasm.256.919359249
ASMCMD>

To see users in password file:

ASMCMD> lspwusr
Username sysdba sysoper sysasm
 SYS     TRUE   TRUE    TRUE
 ASMSNMP TRUE   FALSE   FALSE

ASMCMD> lspwusr --suppressheader
 SYS     TRUE TRUE  TRUE
 ASMSNMP TRUE FALSE FALSE
ASMCMD>

Change user password:

ASMCMD> passwd
usage: passwd <user>
help: help passwd
ASMCMD> help passwd
passwd
 Changes the password of a user.

Synopsis
 passwd <user>

Description
 The option for the passwd command is described below.

user - Name of the user.

An error is raised if the user does not exist in the Oracle ASM
 password file. The user is first prompted for the current password,
 then the new password. The command requires the SYSASM privilege to run

Examples
 This example changes the password of the oracle2 user.

ASMCMD [+] > passwd oracle2
 Enter old password (optional):
 Enter new password: ******


ASMCMD> passwd sys
Enter old password (optional):
Enter new password: *********
ASMCMD>

We can still use “alter user ” to change sys and asmsnmp user password :

SQL> alter user sys identified by "XXXXXXXX";
alter user sys identified by "XXXXXXXX"
 *
ERROR at line 1:
ORA-01031: insufficient privileges

SQL> connect / as sysasm
Connected.
SQL> alter user sys identified by "XXXXXXXX";

User altered.