User's Guide

A Environment File Variables for Serviceguard Integration
with Continuous Access P9000 or XP
This appendix lists all Environment File variables that have been modified or added for disaster
tolerant Serviceguard solutions that employ Continuous Access P9000 or XP. It is recommended
that you use the default settings for most of these variables, so exercise caution when modifying
them:
AUTO_FENCEDATA_SPLIT (Default = 1)
This parameter applies only when the fence level is set to
DATA, which will cause the application to fail if the
Continuous Access link fails or if the remote site fails.
Values:
0 – Do NOT startup the package at the primary site. Require
user intervention to either fix the hardware problem or to
force the package to start on this node by creating the
FORCEFLAG file. Use this value to ensure that the SVOL
data is always current with the trade-off of long application
downtime while the Continuous Access link and/or the
remote site are being repaired.
1 – (DEFAULT) Startup the package at the primary site.
Request the local disk array to automatically split itself from
the remote array. This will ensure that the application will
be able to startup at the primary site without having to fix
the hardware problems immediately. Note that the new data
written on the PVOL will not be remotely protected and the
data on SVOL will be non-current. When the Continuous
Access link and/or the remote site is repaired, you must
manually use the command “pairresync” to re-join the
PVOL and SVOL. Until that command successfully completes,
the PVOL will NOT be remotely protected and the SVOL
data will not be current. Use this value to minimize the down
time of the application with the trade-off of having to
manually resynchronize the pairs while the application is
running at the primary site.
If the package has been configured for a three data center
environment, this parameter is applicable only when the
package is attempting to start up in either the primary (DC1)
or secondary (DC2) data center. This parameter is not
relevant in the recovery cluster or the third data center. Use
this parameter’s default value in the third data center.
AUTO_NONCURDATA (Default = 0)
This parameter applies when the package is starting up with
possible non-current data under certain Continuous Access
pair states. During failover, this parameter will apply when
the SVOL is in the PAIR or PFUL state and the PVOL side is
in the PSUE, EX_ENORMT, EX_CMDIOE or PAIR (for
Continuous Access Journal) state. During failback, this
parameter will apply when the PVOL is in the PSUS state
and the SVOL is in the EX_ENORMT or EX_CMDIOE state.
When starting the package in any of the above states, you
run the risk of losing data.
Values:
475