After you configure SFCFSHA with the installer, you must configure I/O fencing in the cluster for data integrity.
You can configure disk-based I/O fencing or server-based I/O fencing. If your enterprise setup has multiple clusters that use VCS for clustering, Symantec recommends you to configure server-based I/O fencing.
The coordination points in server-based fencing can include only CP servers or a mix of CP servers and coordinator disks.
Symantec also supports server-based fencing with a a single coordination point which is a single highly available CP server that is hosted on an SFHA cluster.
If you have installed SFCFSHA in a virtual environment that is not SCSI-3 PR compliant, you can configure non-SCSI-3 server-based fencing.
See Figure: Workflow to configure non-SCSI-3 server-based I/O fencing.
Figure: Workflow to configure I/O fencing illustrates a high-level flowchart to configure I/O fencing for the SFCFSHA cluster.
Figure: Workflow to configure non-SCSI-3 server-based I/O fencing illustrates a high-level flowchart to configure non-SCSI-3 server-based I/O fencing for the SFCFSHA cluster in virtual environments that do not support SCSI-3 PR.
After you perform the preparatory tasks, you can use any of the following methods to configure I/O fencing:
Using the installsfcfsha |
See Setting up disk-based I/O fencing using installsfcfsha. See Setting up server-based I/O fencing using installsfcfsha. See Setting up non-SCSI-3 server-based I/O fencing in virtual environments using installsfcfsha. |
Using the Web-based installer |
See Configuring SFCFSHA for data integrity using the Web-based installer. |
Using response files |
See Response file variables to configure disk-based I/O fencing. See Response file variables to configure server-based I/O fencing. See Response file variables to configure non-SCSI-3 server-based I/O fencing. |
Manually editing configuration files |
See Setting up disk-based I/O fencing manually. See Setting up server-based I/O fencing manually. See Setting up non-SCSI-3 fencing in virtual environments manually. |
You can also migrate from one I/O fencing configuration to another.
See the Veritas Storage Foundation Cluster File System High Availability Administrator's Guide for more details.