12-23-2019
Hi Neo and rbattel
my system are using GPFS(archive directory) and raw devices with Oracle RAC on the hacmp.
I think the reason why A-system has down itself is that B-system is down due to system bug and all oracle sessions of B-system node are moved to A-system, which causes huge IO on A-system. The sync time of the A-system was slowed down, and as a result, the system was down when the dead man switch limit was reached.
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sgmgr(1M) sgmgr(1M)
NAME
sgmgr - Serviceguard Manager
SYNOPSIS
filename ] | COMserver username password cluster_name ...]] COMserver2
Remarks
Serviceguard Manager is the graphical user interface for Serviceguard or Serviceguard Extension for RAC software, Version A.11.12 or later,
Serviceguard products are not included in the standard HP-UX operating system.
DESCRIPTION
The command starts Serviceguard Manager, the graphical user interface for Serviceguard clusters. Serviceguard Manager can be installed on
HP-UX, Linux, or Windows. Serviceguard Manager can be used to view saved data files of a single cluster, or to see running clusters. To
see the "live" cluster map, Serviceguard Manager connects to a Serviceguard node on the same subnet as those clusters, specifically to a
part of Serviceguard called the Cluster Object Manager (COM).
Options
supports the options listed below. No options are required. If any option is not specified, the user will be prompted to supply it after
the interface opens.
Open a previously saved or example object data file. The file will have the .sgm extension. It can display only one cluster. This
option cannot be used with any other options.
Specify the Serviceguard node that will be the server. This node's COM will query cluster objects running on its subnets, and will
report their status and configuration. Servers with Serviceguard Version A.11.12 or later can monitor clusters. Servers with Ser-
viceguard Version A.11.14 or later can also perform administrative actions. Servers with Version A.11.16 or later can also configure
clusters. To specify multiple sessions, repeat the -s option.
The user login name for the COMserver node. Valid only if COMserver is specified.
The user password on the COMserver node. Valid only if username is specified.
In creating the map, the COMserver will include the cluster where it is a member.
In creating the map, the COMserver will report information
about the specified cluster_name(s). Specify clusters with the following cluster software installed: MC/Serviceguard
Version A.10.10 or later, MC/LockManager Version A.11.02 or later, Serviceguard OPS or Extension for RAC Version
A.11.08 or later, and all versions of MetroClusters and ContinentalClusters.
To see several clusters, repeat the -c option.
If you specify this unused nodes option all COMservers will report information about nodes that have Serviceguard installed, but are
not currently configured in any cluster.
To connect to another COMserver for another session, repeat the -s options.
AUTHOR
was developed by HP.
SEE ALSO
See documents at http://docs.hp.com/hpux/ha including:
Managing Serviceguard.
Configuring OPS Clusters with Serviceguard OPS Edition.
Using Serviceguard Extension for Real Application Cluster (RAC).
Series 700 or 800 Works with Optional Serviceguard or Serviceguard Extension for RAC Software sgmgr(1M)