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Linux-HA Release 2 Tutorial ,[object Object],[object Object],[object Object],[object Object]

Tutorial Overview ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Part I ,[object Object],[object Object],[object Object]

What Is HA Clustering? ,[object Object],[object Object],[object Object],[object Object],[object Object]

What Can HA Clustering Do For You? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

High-Availability Workload Failover

Lies, Damn Lies, and Statistics ,[object Object]

How is this like what you know? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What is different? ,[object Object],[object Object],[object Object],[object Object],[object Object]

Split-Brain ,[object Object],[object Object],[object Object],[object Object]

Quorum ,[object Object],[object Object],[object Object],[object Object],[object Object]

Fencing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

How is HA Clustering Different from Disaster Recovery (“geographic clustering”)? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Single Points of Failure (SPOFs) ,[object Object],[object Object]

Non-Obvious SPOFs ,[object Object],[object Object],[object Object],[object Object],[object Object]

The “ Three R's ” of High-Availability ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Redundant Communications ,[object Object],[object Object],[object Object],[object Object],[object Object]

Data Sharing - None ,[object Object],[object Object],[object Object],[object Object],[object Object]

Data Sharing – Replication ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Data Sharing – ServeRAID ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Data Sharing – FiberChannel ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Data Sharing – Back-End ,[object Object],[object Object],[object Object],[object Object],[object Object]

Linux-HA Background ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Linux-HA Capabilities ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Some Linux-HA Terminology ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Key Linux-HA Processes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Linux-HA Release 2 Architecture

Compiling and Installing Linux-HA from source via RPM or .deb ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Pre-built Packages ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

RPM Package names ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Installing RPMs ,[object Object],[object Object]

Initial configuration ,[object Object],[object Object],[object Object]

Fixing up /etc/ha.d/ha.cf ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Fixing up /etc/ha.d/authkeys ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Creating /var/lib/heartbeat/crm/cib.xml ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Part II ,[object Object],[object Object]

Resource Objects in Release 2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

OCF Class Resource Agents ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

LSB Class Resource Agents ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

'heartbeat' (R1) Class Resource Agents ,[object Object],[object Object],[object Object],[object Object],[object Object]

stonith Resource Agents ,[object Object],[object Object],[object Object],[object Object]

Basic Dependencies in Release 2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Resource Location Constraints ,[object Object],[object Object],[object Object],[object Object],[object Object]

Resource Clones ,[object Object],[object Object],[object Object],[object Object],[object Object]

Resource Groups ,[object Object],[object Object],[object Object],[object Object]

Multi-State (master/slave) Resources ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Advanced Constraints ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Advanced Constraints (cont'd) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Cluster Information Base (CIB) Intro ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

About 'id's ,[object Object],[object Object],[object Object],[object Object]

About <nvpair>s ,[object Object],[object Object],[object Object],[object Object],[object Object]

The crm_config CIB section ,[object Object]

crm_config Global Cluster Properties ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

crm_config: transition_idle_timeout ,[object Object],[object Object],[object Object]

crm_config: symmetric_cluster ,[object Object],[object Object],[object Object],[object Object]

crm_config: default_resource_stickiness ,[object Object],[object Object],[object Object],[object Object]

default_resource_stickiness (cont'd) ,[object Object],[object Object],[object Object]

crm_config: is_managed_default ,[object Object],[object Object],[object Object],[object Object],[object Object]

crm_config: no_quorum_policy ,[object Object],[object Object],[object Object],[object Object]

crm_config: stonith_enabled ,[object Object],[object Object],[object Object]

crm_config: stonith_action ,[object Object],[object Object],[object Object],[object Object]

crm_config: startup_fencing ,[object Object],[object Object],[object Object],[object Object]

crm_config: stop_orphan_resources ,[object Object],[object Object],[object Object],[object Object],[object Object]

crm_config: stop_orphan_actions ,[object Object],[object Object],[object Object],[object Object],[object Object]

crm_config: short_resource_names ,[object Object],[object Object],[object Object],[object Object]

The nodes section of the CIB ,[object Object],[object Object]

The resources section of the CIB ,[object Object],[object Object],[object Object],[object Object]

Classes of Resource Agents in R2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

An OCF primitive object ,[object Object]

A STONITH primitive object ,[object Object]

An LSB primitive object (i. e., an init script) ,[object Object]

meta_attributes of Primitives ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

attributes of Resource Actions ,[object Object],[object Object],[object Object],[object Object],[object Object]

Setting monitor check level ,[object Object],[object Object]

meta_attributes of Groups ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Resource “ clone ” Units ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

meta_attributes of Clones ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

STONITH “ clone ” resource(s) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Useful tools for checking your CIB ,[object Object],[object Object],[object Object],[object Object],[object Object]

CIB constraints ,[object Object]

rsc_location information ,[object Object],[object Object]

Managing init (LSB) services ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Managing init (LSB) services – cont'd ,[object Object],[object Object],[object Object],[object Object]

LSB -> OCF conversion ,[object Object],[object Object],[object Object],[object Object],[object Object]

drbdlinks ,[object Object],[object Object],[object Object],[object Object],[object Object]

drbdlinks configuration ,[object Object]

Sample DNS Configuration ,[object Object],[object Object],[object Object],[object Object]

Sample DHCP Configuration ,[object Object],[object Object],[object Object],[object Object]

Sample Apache Configuration ,[object Object]

Sample Apache Configuration (continued) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Sample NFS Configuration ,[object Object],[object Object],[object Object],[object Object],[object Object]

Sample Samba Configuration ,[object Object],[object Object],[object Object],[object Object]

Testing HA Configurations ,[object Object],[object Object],[object Object],[object Object],[object Object]

Testing HA Configurations - 2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Testing HA Configurations - 3 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Testing HA Configurations - 4 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The crm_resource command ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The crm_standby Command ,[object Object],[object Object],[object Object],[object Object],[object Object]

The cibadmin command ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Using the Heartbeat GUI (hb_gui) ,[object Object],[object Object],[object Object]

Creating Detailed Ordering Constraints ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Sample Ordering Constraint Graph G_utility R_10.10.10.21 R_dhcpd R_postfix R_named

Sample Ordering Constraint XML ,[object Object],[object Object],[object Object],[object Object]

Part IV ,[object Object],[object Object]

Co-location Constraints ,[object Object],[object Object],[object Object]

Sample Co-location Constraints ,[object Object],[object Object],[object Object],[object Object]

Writing and testing OCF Resource Agents ,[object Object],[object Object],[object Object],[object Object],[object Object]

Writing and testing OCF Resource Agents - Methodology ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

OCF Resource Agents – Parameters ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

OCF Resource Agents – Parameters ,[object Object],[object Object],[object Object],[object Object]

OCF RAs – Return Codes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

OCF meta-data and validate-all ,[object Object],[object Object]

OCF stop, start, monitor actions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

OCF Meta-data example ,[object Object],[object Object]

OCF Meta-data example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

OCF RAs – Manual Testing - 1 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

OCF RAs – Manual Testing - 2 ,[object Object],[object Object],[object Object],[object Object],[object Object]

OCF RA testing with ocf-tester ,[object Object],[object Object],[object Object],[object Object],[object Object]

Introducing node attributes ,[object Object],[object Object]

Using pingd to fail over on loss of network connectivity ,[object Object],[object Object],[object Object],[object Object],[object Object]

Starting pingd as an OCF clone resource (1/2) ,[object Object]

Starting pingd as an OCF clone resource (2/2) ,[object Object]

Starting pingd from ha.cf ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Using pingd attributes in rules ,[object Object],[object Object],[object Object]

Failing over on arbitrary conditions ,[object Object],[object Object],[object Object],[object Object],[object Object]

Using attrd_updater ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Split-site (“stretch”) clusters ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],Quorum Server basics

Quorum Server: Single Site failure ,[object Object],[object Object],[object Object],[object Object]

Quorum Server prevents Split-Brain ,[object Object],[object Object],[object Object],[object Object]

Quorum Server Not a SPOF ,[object Object],[object Object],[object Object],[object Object]

Multiple Failures Can Lead To No Service ,[object Object],[object Object],[object Object],[object Object]

Time Based Configuration Rules ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Allowing fail-back of an IP address only on weekends ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Setting default_resource_stickiness to default to fail back on weekends ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

More about Time-Based rules ,[object Object],[object Object],[object Object],[object Object]

References ,[object Object],[object Object],[object Object],[object Object],[object Object]

Legal Statements ,[object Object],[object Object],[object Object],[object Object]

IPaddr resource Agent ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Filesystem resource Agent ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

ClusterMon resource Agent ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Apache resource Agent ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

smb and nmb resources ,[object Object],[object Object],[object Object],[object Object],[object Object]

nfslock and nfsserver Resources ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

ibmhmc STONITH Resource ,[object Object],[object Object],[object Object],[object Object]

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