asm (VBG#) process Lock after dropping disk From diskgroup (Doc ID 1961648.1)

Last updated on JUNE 01, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.3 and later
Information in this document applies to any platform.

Symptoms

 We deleted a disk Vdisk_BBDD_50g_023 from ASM diskgroup, but there are two process that lock the physical disk. That's a RAC environment, and we have this problem only in one node.

fuser -a Vdisk_BBDD_50g_023
Vdisk_BBDD_50g_023: 27869 31155

[oracle@tiro mapper]$ ps -ef|grep 27869
oracle 27869 1 0 Mar20 ? 00:01:36 asm_vbg0_+ASM2
[oracle@tiro mapper]$ ps -ef|grep 31155
oracle 31155 1 0 Mar20 ? 00:01:37 asm_vbg2_+ASM2

If we view it from asmcd we view the disk in status candidate.

ASMCMD> lsdsk --candidate -p
Group_Num Disk_Num Incarn Mount_Stat Header_Stat Mode_Stat State Path
0 36 3208863957 CLOSED CANDIDATE ONLINE NORMAL /dev/mapper/Vdisk_BBDD_50g_023

So we can't disconnect the disk of the operating system.

Cause

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