HPP Enterprises P4000 SAN - Manual (Page 4)

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“Data de-duplication 1 ” allows you to roll out hundreds of OS images while only occupying the space
needed to store the original image. Initial deployment time is reduced to the time required to perform
the following activities:
 Configure “the first operating system”
 Configure the particular deployment for uniqueness
 Configure the applications in VMs
No longer should a server roll-out take days.
High availability
Highly-available storage is a critical component of a highly-available XenServer resource pool. If a
XenServer host at a particular site were to fail or the entire site were to go down, the ability of
another XenServer pool to take up the load of the affected VMs means that your business-critical
applications can continue to run.
HP StorageWorks P4000 SAN solutions provide the following mechanisms for maximizing
availability:
 Storage nodes are clustered to provide redundancy.
 Hardware RAID implemented at the storage-node level can eliminate the impact of disk drive
failures.
 Configuring multiple network connections to each node can eliminate the impact of link failures.
 Synchronous replication between sites can minimize the impact of a site failure.
 Snapshots can prevent data corruption when you are rolling back to a particular point-in–time.
 Remote snapshots can be used to add sources for data recovery.
Comprehensive, cost-effective capabilities for high availability and disaster recovery (DR) applications
are built into every HP StorageWorks P4000 SAN. There is no need for additional upgrades; simply
install a storage node and start using it. When you need additional storage, higher performance, or
increased availability, just add one or more storage nodes to your existing SAN.
Scalability
The storage node is the building block of an HP StorageWorks P4000 SAN, providing disk spindles,
a RAID backplane, CPU processing power, memory cache, and networking throughput that, in
combination, contribute toward overall SAN performance. Thus, HP StorageWorks P4000 SANs can
scale linearly and predictably as your storage requirements increase.
Virtualization
Server virtualization allows you to consolidate multiple applications using a single host server or
server pool. Meanwhile, storage virtualization allows you to consolidate your data using multiple
storage nodes to enhance resource utilization, availability, performance, scalability and disaster
recoverability, while helping to achieve the same objectives for VMs.
1 Occurring at the iSCSI block level on the host server disk