HP StorageWorks Storage Mirroring for Hyper-V Enterprise Edition E-LTU TA734AAE 产品宣传页

产品代码
TA734AAE
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页码 4
Figure 1. A storage cluster can provide continuous availability to Hyper-V, even with the loss of an entire data center.
Virtual machines
Virtual machines
Microsoft Cluster
Live Migration
Logical volume
continually accessible
Hyper-V VHDs
Storage blocks replicated
in each building
Single HP SAN/iQ
cluster
HP LeftHand P4000 SAN
Data center 1
Data center 2
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C
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D
Microsoft Hyper-V Server
A
B
C
D
Microsoft Hyper-V Server
A
B
C
D
Hyper-V VHDs
B
D
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C
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B
C
D
Hyper-V VHDs
Solution overview
The HP LeftHand P4000 SAN is a robust solution for 
a Hyper-V environment.
• An HP LeftHand P4000 SAN is easy to manage and
requires no specific expertise in array management or 
storage networking. The SAN leverages the existing 
Windows and IP expertise with implementations 
requiring less than half a day.
• The SAN is easy to change and expand as the virtual
server environment changes or grows. Changes 
require no downtime and can address both capacity 
and performance. Automation lowers the risk of costly 
administrative errors. 
• Never outgrow the storage environment. The SAN
scales to any size environment on the fly. There are 
no expensive “fork lift” upgrades—ever.
• The SAN is optimized for several Windows Server
roles by supporting unique read/write IO profiles. 
This optimization enables the highest performance 
possible from a set of disks and decreases the dollars 
per IOPS for the system. 
• Construct a highly available storage environment
that survives virtually any set of component failures 
to keep running without affecting application users. 
• Easily apply data protection features as needed for
specific storage groups without downtime. 
How does HP support all these features? Based on  
our patented SAN/iQ storage management software, 
an HP LeftHand P4000 SAN is comprised of multiple 
“storage nodes.” Each node is a self-contained server
with eight to 12 drives. The set of storage nodes are 
clustered together to create a virtual storage array, or 
storage pool, from which iSCSI volumes are created. 
SAN/iQ software load balances volume data across 
the storage nodes within a cluster and replicates individ-
ual blocks to different storage nodes using a technology 
called network redundant array of independent disks 
(RAID). The storage subsystem scales by adding  storage 
nodes to the cluster. Existing volumes are automatically
rebalanced to accommodate the new nodes, increasing 
both the capacity and the performance of the storage 
cluster. You can immediately resolve a performance 
bottleneck relating to the storage subsystem by adding 
a node to the storage cluster—no re-planning or 
reconfiguration; no downtime; and no storage 
expertise required.
Additionally, network RAID provides the same level of 
protection between storage nodes as disk RAID pro-
vides between disks in a RAID array. Thus, if any part 
of a node fails (e.g., disks, CPU, network connections, 
power), other copies of the data within the SAN provide 
that the data volumes are still available. The system can 
even tolerate multiple failure scenarios. And, because of 
the method network RAID uses to  create data replicas, 
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