Unable To Connect To ASM Due To SQL*Plus Shows “Connected To An Idle Instance. (Doc ID 1179825.1)

Last updated on SEPTEMBER 30, 2010

Applies to:

Oracle Server - Enterprise Edition - Version: 10.2.0.1 to 11.2.0.2 - Release: 10.2 to 11.2
Information in this document applies to any platform.

Symptoms


1) On a new ASM installation/configuration (Standalone or RAC) you are not able to connect to the ASM instance due to the SQL*Plus shows “Connected to an idle instance.


[grid@dbaasm ~]$ sqlplus "/as sysasm"

SQL*Plus: Release 11.2.0.1.0 Production on Wed Aug 18 09:20:55 2010

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Connected to an idle instance.

2) You confirmed the ASM installation/configuration successfully completed.

3) Also, the ASM instance is up and running:


[grid@dbaasm ~]$ ps -fea | grep asm_
grid 9226 1 0 Aug11 ? 00:00:00 asm_asmb_+ASM
grid 27656 1 0 May14 ? 00:02:41 asm_pmon_+ASM
grid 27658 1 0 May14 ? 00:00:00 asm_vktm_+ASM
grid 27662 1 0 May14 ? 00:00:01 asm_gen0_+ASM
grid 27664 1 0 May14 ? 00:00:13 asm_diag_+ASM
grid 27666 1 0 May14 ? 00:00:02 asm_psp0_+ASM
grid 27668 1 0 May14 ? 00:45:27 asm_dia0_+ASM
grid 27670 1 0 May14 ? 00:00:03 asm_mman_+ASM
grid 27672 1 0 May14 ? 00:00:05 asm_dbw0_+ASM
grid 27674 1 0 May14 ? 00:00:05 asm_lgwr_+ASM
grid 27676 1 0 May14 ? 00:00:03 asm_ckpt_+ASM
grid 27678 1 0 May14 ? 00:00:06 asm_smon_+ASM
grid 27680 1 0 May14 ? 00:00:07 asm_rbal_+ASM
grid 27682 1 0 May14 ? 00:12:19 asm_gmon_+ASM
grid 27684 1 0 May14 ? 00:00:06 asm_mmon_+ASM
grid 27686 1 0 May14 ? 00:00:50 asm_mmnl_+ASM
grid 28051 1 0 May18 ? 00:00:00 asm_vbg0_+ASM
grid 28306 1 0 May18 ? 00:05:32 asm_vdbg_+ASM
grid 28308 1 0 May18 ? 00:00:00 asm_vmb0_+ASM
grid 28310 1 0 May18 ? 00:00:00 asm_vbg1_+ASM
grid 28312 1 0 May18 ? 00:00:00 asm_vbg2_+ASM


4) You started the ASM instance with the same OS user used to install the ASM Oracle Home (10gR2 or 11gR1) or Grid Infrastructure Home (11gR2), so this is OK.

Cause

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