DUMPAAEnable Version B.11.23.0609 Release Notes

What Is New in This Version

DUMPAAEnable Version B.11.23.0609 for Active-Active (A-A) devices supports the following

features:

• Path Failover for A-A Dump Devices

• A-A Device Configuration through Failed Path

• Duplicate Device Identification on A-A Dump Device Configuration

•A new crashconf(1M) Option -l

Path Failover for A-A Dump Devices

If the user-configured path of an A-A dump device goes offline, the Path Failover feature

triggers an automatic reconfiguration in the background. As a result, the A-A dump device

will be reconfigured using an alternate available active path.

After path failover, the alternate path (now, the actual path) used for dump irrespective of the

status (active/failed) of the originally configured path. Even if the originally configured path

becomes active, only the alternate path will be used for dump.

A path failover can occur again if the alternate path (currently, the actual path) fails. An

alternate available active path is configured for dump each time the actual path fails. If no

active paths are available, the device is marked OFFLINE and not used for dump. An

OFFLINE device can once again participate in dump when at least one path for the dump

device becomes active.

The crashconf option -l displays the actual path used for dump configuration.

NOTE HP-UX, applications, and other processes communicate with devices and

pseudo-devices by writing to and reading from Device Special Files. The terms

Path and Device Special File (DSF) have been used interchangeably in this

document.

Scenario for Path Failover

/dev/dsk/c42t0d4, /dev/dsk/c12t0d3, and /dev/dsk/c10t0d2 are the paths available to

an A-A device.

Time T0: Performing crash dump configuration using crashconf: