"VxVM vxplex ERROR V-5-1-10870 fsgen/vxplex: Warning: vxsync exited with exitcode 42: Volume data may not be flushed to all plexes" appears when attempting to dissociate a plex for a volume

Problem

Attempting to disassociate a plex for a raw volume returns an error but completes the task.

Error Message

VxVM vxplex ERROR V-5-1-10870 fsgen/vxplex: Warning: vxsync exited with exitcode 42:
Volume data may not be flushed to all plexes
 

Cause

VxVM is unable to determine if plexes are in sync and returns a warning that the data may not be flushed to all plexes.

Solution

The error means that Volume Manager cannot guarantee that all data has been flushed to all plexes. There is the possibility of data corruption if the data is incomplete.

The only way to guarantee data integrity is to stop the volume prior to disassociating a plex. The volume and plexes should be in the state DISABLED CLEAN.

1. Stop the volume

# vxvol -g diskgroup_name stop volume_name

2. Verify the volume is DISABLED CLEAN

# vxprint -htqg diskgroup_name

dg foo          default      default  17000    1392743359.19.mtvav210-c9e

dm ams_wms0_40  ams_wms0_40  auto     65536    10340608 -
dm ams_wms0_41  ams_wms0_41  auto     65536    1931008  -
dm ams_wms0_42  ams_wms0_42  auto     65536    4043008  -
dm ams_wms0_43  ams_wms0_43  auto     65536    4043008  -

v  test             -            DISABLED CLEAN    2097152  SELECT    -        fsgen
pl test-01      test         DISABLED CLEAN    2097152  CONCAT    -        RW
sd ams_wms0_40-01 test-01    ams_wms0_40 0     2097152  0         ams_wms0_40 ENA
pl test-02      test         DISABLED CLEAN    2097152  CONCAT    -        RW
sd ams_wms0_42-01 test-02    ams_wms0_42 0     2097152  0         ams_wms0_42 ENA
 

3.  Disassociate the plex:

# vxplex -g diskgroup_name dis plex_name

# vxprint -htqg foo
dg foo          default      default  17000    1392743359.19.mtvav210-c9e

dm ams_wms0_40  ams_wms0_40  auto     65536    10340608 -
dm ams_wms0_41  ams_wms0_41  auto     65536    1931008  -
dm ams_wms0_42  ams_wms0_42  auto     65536    4043008  -
dm ams_wms0_43  ams_wms0_43  auto     65536    4043008  -

pl test-02      -            DISABLED -        2097152  CONCAT    -        RW
sd ams_wms0_42-01 test-02    ams_wms0_42 0     2097152  0         ams_wms0_42 ENA

v  test         -            DISABLED CLEAN    2097152  SELECT    -        fsgen
pl test-01      test         DISABLED CLEAN    2097152  CONCAT    -        RW
sd ams_wms0_40-01 test-01    ams_wms0_40 0     2097152  0         ams_wms0_40 ENA

4. Start the volume

# vxvol -g diskgroup_name start volume_name