Quickspecs, Hp trucluster server v5.1b-1 – HP V5. 1B-1 User Manual

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Cluster Storage I/O

Cluster Storage I/O
Failover

Failover

TruCluster Server provides two levels of protection in the event of storage interconnect failure. When configured with
redundant storage adapters, the storage interconnect will be highly available. Should one interconnect fail, traffic will
transparently fail over to the surviving adapter. When a member system is connected to shared storage with a single storage
interconnect and it fails, transactions are transparently performed via the cluster interconnect to another cluster member
with a working storage interconnect.

Cluster Client Network

Cluster Client Network
Failover

Failover

TruCluster Server supports highly available client network interfaces via the Tru64 UNIX redundant array of independent
network adapters (NetRAIN) feature.

Cluster Interconnect

Cluster Interconnect
Failover

Failover

TruCluster Server allows the elimination of the cluster interconnect as a single point of failure by supporting redundant
cluster interconnect hardware. You can configure dual-rail Memory Channel, allowing the cluster to survive the failure of a
single rail. For LAN interconnect, two or more network adapters on each member are configured as a NetRAIN virtual
interface. When properly configured across two or more switches, the cluster will survive any LAN component failure. This
not only guards against rare network hardware failures, but also facilitates the upgrade and maintenance of the network
without disrupting the cluster.

Support for Parallelized

Support for Parallelized
Database Applications

Database Applications

TruCluster Server provides the software infrastructure to support parallelized database applications, such as Oracle 9i Real
Application Clusters (RAC) and Informix Extended Parallel Server (XPS) to achieve high performance and high availability.
9i RAC and XPS are offered and supported separately by Oracle Corporation and Informix Software, Inc., respectively.

Distributed Lock Manager

Distributed Lock Manager The distributed lock manager (DLM) synchronizes access to resources that are shared among cooperating processes

throughout the cluster. DLM provides a software library with an expansive set of lock modes that applications use to
implement complex resource-sharing policies. DLM provides services to notify a process owning a resource that it is
blocking another process requesting the resource. An application can also use DLM routines to efficiently coordinate the
application's activities within the cluster.

QuickSpecs

HP TruCluster Server V5.1B-1

Features - TruCluster Server V5.1B-1

DA - 11444 Worldwide — Version 4 — December 8, 2003

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