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Veritas Access Administrator's Guide

Last Published: 2021-04-15

Product(s): Appliances (Version Not Specified)

Platform: 3340

Manually enabling and disabling majority fencing in a non-SSH environment

Enabling majority fencing in a non-SSH environment

The Storage> fencing on majority command is disabled in a non-SSH environment.

To enable majority fencing in a non-SSH environment

Verify that fencing is not enabled.
```
# vxfenadm -d
```

Copy /etc/vxfen.d/vxfenmode_majority to /etc/vxfenmode.

# cat /etc/vxfenmode                                                               #
 # vxfen_mode determines in what mode VCS I/O Fencing should work.
 #
 # available options:
 # scsi3      - use scsi3 persistent reservation disks
 # customized - use script based customized fencing
 # majority   - use majority based fencing
 # disabled   - run the driver but don't do any actual fencing
 #
 vxfen_mode=majority

Set the MAJORITY string in /opt/VRTSnas/conf/fencing_type.
```
# cat /opt/VRTSnas/conf/fencing_type MAJORITY
```
Stop HAD on all the nodes.
```
# hastop -all
```

Update the /etc/VRTSvcs/con/config/main.cf file to add the UseFence=SCSI3 attribute.

# cat main.cf
      ....
     include "types.cf"
     include "CFSTypes.cf"
     include "CVMTypes.cf"
     include "SNASTypes.cf"

     cluster vacluster (
                        UserNames = { admin = eHIaHChEIdIIgQIcHF }
                        ResourceLimit = 10000
                        GroupLimit = 1000
                        Administrators = { admin }
                        HacliUserLevel = COMMANDROOT
                        UseFence = SCSI3
                       )                                                         
    ....

Copy the main.cf file to all the cluster nodes.
Restart the fencing driver on all cluster nodes.
```
# service vxfen stop
# service vxfen start
```
Start HAD on all the cluster nodes.
```
# hastart
```
Once HAD is up, verify that fencing is configured.
```
# vxfenadm -d
Storage> fencing status
```

Disabling majority fencing in a non-SSH environment

The Storage> fencing off is disabled in a non-SSH environment.

To disable majority fencing in a non-SSH environment

Stop HAD on all the nodes.
```
# hastop -all
```
Stop the fencing driver on all the nodes.
```
# service vxfen stop
```

Copy /etc/vxfen.d/vxfenmode_disable to /etc/vxfenmode.

# cat /etc/vxfenmode                                                               #
#
# vxfen_mode determines in what mode VCS I/O Fencing should work.
#
# available options:
# scsi3      - use scsi3 persistent reservation disks
# customized - use script based customized fencing
# majority   - use majority based fencing
# disabled   - run the driver but don't do any actual fencing
#
vxfen_mode=disabled

Update the /opt/VRTSnas/conf/fencing_type to blank.

Update the /etc/VRTSvcs/con/config/main.cf file to remove the UseFence attribute.

# cat main.cf
      ....
     include "types.cf"
     include "CFSTypes.cf"
     include "CVMTypes.cf"
     include "SNASTypes.cf"

     cluster vacluster (
                        UserNames = { admin = eHIaHChEIdIIgQIcHF }
                        ResourceLimit = 10000
                        GroupLimit = 1000
                        Administrators = { admin }
                        HacliUserLevel = COMMANDROOT
                       )                                                         
    ....

Copy the main.cf file to all the cluster nodes.
Start the fencing driver on all cluster nodes.
```
# service vxfen start
```
Start HAD on all the cluster nodes.
```
# hastart
```