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Cluster Server 7.3.1 Configuration and Upgrade Guide - Solaris

Last Published: 2019-04-17

Product(s): InfoScale & Storage Foundation (7.3.1)

Platform: Solaris

Setting up non-SCSI-3 fencing in virtual environments manually

To manually set up I/O fencing in a non-SCSI-3 PR compliant setup

Configure I/O fencing either in majority-based fencing mode with no coordination points or in server-based fencing mode only with CP servers as coordination points.
See Setting up server-based I/O fencing manually.
See Setting up majority-based I/O fencing manually .
Make sure that the VCS cluster is online and check that the fencing mode is customized mode or majority mode.
```
# vxfenadm -d
```
Make sure that the cluster attribute UseFence is set to SCSI-3.
```
# haclus -value UseFence
```
On each node, edit the /etc/vxenviron file as follows:
```
	data_disk_fencing=off
```
On each node, edit the /kernel/drv/vxfen.conf file as follows:
```
	vxfen_vxfnd_tmt=25
```
On each node, edit the /etc/vxfenmode file as follows:
```
	loser_exit_delay=55
	vxfen_script_timeout=25
```
Refer to the sample /etc/vxfenmode file.
On each node, set the value of the LLT sendhbcap timer parameter value as follows:
- Run the following command:
```
lltconfig -T sendhbcap:3000
```
- Add the following line to the /etc/llttab file so that the changes remain persistent after any reboot:
```
set-timer senhbcap:3000
```
On any one node, edit the VCS configuration file as follows:
- Make the VCS configuration file writable:
```
	# haconf -makerw
```
- For each resource of the type DiskGroup, set the value of the MonitorReservation attribute to 0 and the value of the Reservation attribute to NONE.
```
	# hares -modify <dg_resource> MonitorReservation 0
```
```
	# hares -modify <dg_resource> Reservation "NONE"
```
- Run the following command to verify the value:
```
	# hares -list Type=DiskGroup MonitorReservation!=0
```
```
 # hares -list Type=DiskGroup Reservation!="NONE"
```
  The command should not list any resources.
- Modify the default value of the Reservation attribute at type-level.
```
 # haattr -default DiskGroup Reservation "NONE"
```
- Make the VCS configuration file read-only
```
	# haconf -dump -makero
```
Make sure that the UseFence attribute in the VCS configuration file main.cf is set to SCSI-3.
To make these VxFEN changes take effect, stop and restart VxFEN and the dependent modules
- On each node, run the following command to stop VCS:
```
# svcadm disable -t vcs
```
- After VCS takes all services offline, run the following command to stop VxFEN:
```
# svcadm disable -t vxfen
```
- On each node, run the following commands to restart VxFEN and VCS:
```
# svcadm enable vxfen
```