What is Serviceguard cluster?
What is Serviceguard cluster?
A Serviceguard cluster is a networked grouping of HP 9000 or HP Integrity servers (or both), known as nodes, having sufficient redundancy of software and hardware that a single point of failure will not significantly disrupt service. A package groups application services (individual HP-UX processes) together.
What is SG cluster?
What is a Serviceguard cluster? Any host system running in a Serviceguard cluster is called an active node. Under normal conditions, a fully operating Serviceguard cluster monitors the health of the cluster’s components on all its active nodes. Most Serviceguard packages are failover packages.
How does a Serviceguard work?
Serviceguard periodically checks the health of the lock LUN and writes messages to the syslog file if the disk fails the health check. This file should be monitored for early detection of lock disk problems.
How do I start cluster service in HP UX?
1)Starting the Cluster: Use the cmruncl command to start the cluster when all cluster nodes are down. Particular command options can be used to start the cluster under specific circumstances. By default, cmruncl will do network validation, making sure the actual network setup matches the configured network setup.
How do I stop clustering on HPUX?
To halt a Serviceguard cluster, perform the following command as a root user on one of the nodes in the cluster:
- # cmhaltcl -f.
- # cmhaltnode -f
- This command causes package failover to occur for any package running on the affected node, if AUTO_RUN and Node_switching are enabled for such packages.
How do I check Service guard version?
Checking Status of the Cluster File System (CFS) NOTE: Check the Serviceguard, SGeRAC, and SMS Compatibility and Feature Matrix and the latest Release Notes for your version of Serviceguard for up-to-date information about CFS support: http://www.docs.hp.com -> High Availability -> Serviceguard.
What is HPE Serviceguard for Linux?
HPE Serviceguard for Linux® (SGLX) is a high availability (HA) and disaster recovery (DR) clustering solution that increases uptime for your critical applications by protecting them from a multitude of infrastructure and application faults across physical or virtual environments over any distance.
How do you stop a service guard?
What is Cmviewcl?
DESCRIPTION cmviewcl [ -v ] -f line displays the current status information of a cluster in line output format. Output can be displayed for the whole cluster or it may be limited to particular nodes or packages. This output format, as opposed to “-f table” is the machine parsable output format.
What is service guard in SAP?
HP Serviceguard for Linux is a high availability/disaster recovery solution that provides business continuity for your critical applications. The Serviceguard extension for SAP provides an out-of-box unattended disaster recovery solution for SAP HANA scale-out deployments on HP ConvergedSystem appliances.
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