HP P4300 G2 16TB MDL SAS BK715B 사용자 설명서

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HP P4000 G2 All Inclusive
Software
Product Features
Storage Clustering
SAN/iQ Storage Clustering allows a customer to create pools of storage by consolidating storage
nodes on the network into clusters. Storage Clustering provides online scalability, both within a
volume and across the entire storage pool. All available physical capacity is aggregated and
available to the volumes created on the SAN.
In order to scale capacity and/or performance, the IT administrator simply adds nodes to the
storage cluster. SAN/iQ software automatically redistributes the data for optimal data availability
and performance. All the capacity, processing power, and bandwidth included in each node are
aggregated into the entire SAN, ensuring an increase in performance as the SAN grows. To make the
process even easier, HP P4000 SANs let IT administrators expand volumes and add storage nodes
online, without taking the volumes offline or causing application downtime.
Customers can use SAN/iQ Storage Clustering to implement different tiers of storage in their SAN.
For instance a storage cluster of SAS-based storage nodes can be implemented for performance
while a storage cluster of MDL SAS-based storage nodes is implemented for higher density, all
managed from a single interface.
Network RAID
For increased access to the SAN, customers can install storage nodes anywhere on the IP network.
P4000 nodes in a cluster can be spread out between several racks on a floor, across several floors in
a building, or across buildings on a campus site or a metropolitan area. Typical round trip latency
should be 2 milliseconds or less. A single P4000 SAN can thus eliminate the risk of data loss in the
event of a disk, controller, storage node, power, network, or site failure.
SAN/iQ Network RAID stripes and protects multiple copies of data across a cluster of storage nodes,
eliminating any single point of failure in the HP P4000 G2 SAN. Applications have continuous data
availability in the event of a power, network, disk, controller, or entire storage node failure.
SAN administrators can manage redundancy on a per-volume basis to optimize storage utilization
and match the data protection of the volume to the application data on that volume. Customers
choose from Network RAID level 0, 5, 6, 10, 10+1, or 10+2 to protect data across the storage nodes,
only allocating additional storage space for data that warrants additional protection. For increased
protection, Network RAID can also be integrated into environments where application servers are
clustered, enabling true, seamless, geo-cluster solutions that provide both application and storage
clustering across geographies.
Thin Provisioning
Most SAN vendors place the provisioning burden on SAN administrators, asking them to predict how
much space will be needed in the future for volumes, snapshots and remote copies, and what the
SAN's expected growth rate will be. That information is required because most storage provisioning
models call for pre-allocation of storage space on the SAN. Errors in estimation are inevitable, and
can be expensive or cause snapshots and backups to fail. Worse yet, if administrators over-allocate
storage, it is nearly impossible to reclaim that unused space.
P4000 G2 SANs do not require pre-allocation of storage space. SAN/iQ software manages all the
storage allocations underneath a given volume, and the Thin Provisioning feature allocates space
only as data is actually written to that volume. SAN/iQ Thin Provisioning allows customers to
purchase only the storage needed today and then add more storage to the clusters as application
data grows. This raises the overall utilization and efficiency of the SAN and ultimately increases the
ROI associated with the SAN.
Application Integrated Snapshots
QuickSpecs
HP P4000 G2 LeftHand SAN Solutions
Software
DA - 13552   North America — Version 23 — October 19, 2012
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