Clustering
High-availability topologies aligned to the platform.
- Oracle RAC
- Solaris Cluster
- Linux Cluster
- Oracle Linux Cluster
High availability to keep critical services running.
We design clustering, redundancy and failover to reduce interruptions and control platform behavior during failures.
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High Availability
Reducing interruptions requires removing single points of failure.
Redundancy and clustering are designed around service, operating system, database, network and storage.
Ibm powerha
High availability for IBM Power and AIX.
- Topology
- Resources
- Dependencies
- Failover
Validation
High availability must be tested.
A configured cluster is not enough: behavior is validated during component loss and maintenance.
Failure testing
Controlled execution of failure scenarios.
- Node
- Network
- Storage
- Service
Operations
Documentation makes behavior known and repeatable.
- Monitoring
- Runbook
- Escalation
- Evidence
Failure Domains
High availability starts by defining what can fail without stopping the service.
Duplicating components is not enough. We review what the cluster protects, what remains a single point and how the service behaves during maintenance or failure.
Service
We define which process or resource must remain available.
- Application
- Database
- IP / service
- Filesystem
Host and os
The cluster must detect, isolate and recover correctly.
- Node
- OS
- Heartbeat
- Fencing
Network and storage
Shared paths must also be redundant and tested.
- NIC / HBA
- Switch / fabric
- Multipath
- Storage
Operations
The design must include maintenance, testing and procedures.
- Switchover
- Failover
- Patching
- Evidence
Next Step
Contact SP TI →Review what can fail, what must continue and how it recovers.
Architecture follows real dependencies and service criticality.