Veritas Storage Foundation 5.1 SP1 Cluster File System Installation Guide (5900-1510, April 2011)

Post-upgrade tasks

This chapter includes the following topics:

■ Configuring Powerfail Timeout after upgrade

Configuring Powerfail Timeout after upgrade

When you install SFCFS, SFCFS configures Powerfail Timeout (PFTO) using tunable

parameters. Starting with SFCFS 5.0.1, the Powerfail Timeout (PFTO) has the

following default values:

■ disabled for devices using the HP-UX native multi-pathing

■ enabled for devices using DMP

After installation, you can override the defaults, if required. You can explicitly

enable or disable PFTO for native multi-pathing devices and DMP devices.

When you upgrade from SFCFS release 5.0 or earlier, SFCFS does not preserve

any user-defined PFTO values. After the upgrade, the PFTO default values apply

to all devices. If you want to use the device settings from the previous release,

you must set the desired value explicitly. For example, in an SFCFS 5.0 installation,

you have set the PFTO state to enabled for a native multi-pathing device. After

you upgrade from SFCFS 5.0 to SFCFS 5.1SP1, the native device is set to the default

value, which is disabled. In order to use PFTO, you must explicitly enable the PFTO

on that device.

When you upgrade from SFCFS release 5.0.1 to a higher version, SFCFS preserves

the PFTO state for the devices. After the upgrade, the PFTO values are set to the

same values that the device had before the upgrade. For example, in an SFCFS

5.0.1 installation, you have set the PFTO state to enabled for a native multi-pathing

device. After you upgrade from SFCFS 5.0.1 to SFCFS 5.1SP1, the native device is

set to enabled.

Chapter