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ASM / CRS Crashes While Running "asmcmd afd_refresh --all" After LUN Resize at OS Level (Doc ID 2616920.1)

Last updated on JANUARY 23, 2020

Applies to:

Oracle Database - Enterprise Edition - Version 12.2.0.1 and later
Information in this document applies to any platform.

Symptoms

On : 12.2.0.1 version, STORAGE

ASM / CRS crashes while running "asmcmd afd_refresh --all" after LUN resize at the OS layer. 

Observed below messages in the ASM alert log when running the afd_refresh command:

alert_+ASMx.log

SQL> alter diskgroup <DGNAME1> resize all size 75G  <<<<<<<<<<<<<<<<<<<<<<<<
2019-03-14T11:25:23.837382+01:00
NOTE: GroupBlock outside rolling migration privileged region
NOTE: requesting all-instance membership refresh for group=16
2019-03-14T11:25:23.854742+01:00
NOTE: membership refresh pending for group 16/0x35f03a37 (<DGNAME1>)
2019-03-14T11:25:23.864512+01:00
GMON querying group 16 at 68 for pid 25, osid 25416
2019-03-14T11:25:23.865830+01:00
SUCCESS: refreshed membership for 16/0x35f03a37 (<DGNAME1>)
2019-03-14T11:25:23.866158+01:00
ORA-15032: not all alterations performed
ORA-15057: specified size of 76800 MB is larger than actual size of 51200 MB        <<<<<<<<<<<< specified size was larger than the actual one

............

NOTE: ASMB process exiting, either shutdown is in progress or foreground connected to ASMB was killed.
NOTE: ASMB0 clearing idle groups before exit
2019-03-14T11:31:29.836882+01:00
Received dirty detach msg from inst 1 for dom 1
2019-03-14T11:31:31.987489+01:00
Instance Critical Process (pid: 6, ospid: 25372, GEN0) died unexpectedly
PMON (ospid: 25356): terminating the instance due to error 495                  <<<<<<<<<<<< Instance termination
2019-03-14T11:31:33.019383+01:00
Instance terminated by PMON, pid = 25356

As per the above ORA-15057 error, initial LUN size was  51200 MB and it was resized to 76800 MB at the OS layer. 

Changes

Storage LUNS are resized at OS Layer to increase the ASM disk size. 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
  
  
References


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