HP P4000 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack User Guide - Page 13

Alternative setups, Designing the network for the Multi-Site SAN

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Alternative setups The Multi-Site SAN software supports many other valid configurations than the four illustrated in the prior section.Table 3 on page 13 lists other possible configurations. Table 3 Alternative Multi-Site SAN configurations Alternate configuration Description Details More than one Multi-Site cluster in the management group Multiple clusters running within the same management group. The Multi-Site SAN software supports running many clusters in the same management group. You simply need to make sure that clusters have the same number of storage systems in each site for that particular cluster. More than three sites There are more than three sites in the cluster. A particular cluster can only span up to three sites. However, the Multi-Site SAN software supports having more than one cluster. The different clusters can span different sites within the same cluster. Using Virtual Manager The Virtual Manager capability remains in the product (a manual process for recovering quorum). The Virtual Manager is used in two-site configurations, and is not as commonly used as the Failover Manager. For more information about the Virtual Manager, see the chapter "Special Managers" in the HP StorageWorks SAN Solutions Storage System User Guide. Using Remote Copy with Multi-Site SAN The cluster contains Remote Copy, which like all other SAN/iQ features, is compatible with Multi-Site SAN. You can use Remote Copy to replicate data from a Multi-Site SAN to a Disaster Recovery or Backup site. See the chapter "Understanding and Planning Remote Copy" in the Remote Copy User Manual. Multiple subnet clusters in the same site The Multi-Site SAN features can be used to set up clusters that span multiple subnets in the same site. The Multi-Site SAN software can be used to create clusters that span multiple networks (subnets) in larger Enterprise data centers. The storage systems all reside in the same site. However, the cluster must be Multi-Site if it is to contain storage systems from different subnets. Designing the network for the Multi-Site SAN Good network design is a critical part of setting up a Multi-Site SAN that meets your needs. A good Multi-Site SAN network encompasses the following attributes: • Reliability • High availability • High performance This section contains information about the minimum recommended network design considerations when planning a network to support a Multi-Site SAN. P4000 Multi-Site HA/DR Solution Pack user guide 13

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Alternative setups
The Multi-Site SAN software supports many other valid configurations than the four illustrated in the
prior section.
Table 3
on page 13 lists other possible configurations.
Table 3 Alternative Multi-Site SAN configurations
Details
Description
Alternate configuration
The Multi-Site SAN software supports
running many clusters in the same
management group. You simply need
to make sure that clusters have the same
number of storage systems in each site
for that particular cluster.
Multiple clusters running within
the same management group.
More than one Multi-Site cluster in
the management group
A particular cluster can only span up to
three sites. However, the Multi-Site SAN
software supports having more than one
cluster. The different clusters can span
different sites within the same cluster.
There are more than three sites
in the cluster.
More than three sites
The Virtual Manager is used in two-site
configurations, and is not as commonly
used as the Failover Manager. For more
information about the Virtual Manager,
see the chapter
“
Special Managers
”
in
the
HP StorageWorks SAN Solutions
Storage System User Guide
.
The Virtual Manager capability
remains in the product (a
manual process for recovering
quorum).
Using Virtual Manager
You can use Remote Copy to replicate
data from a Multi-Site SAN to a Disaster
Recovery or Backup site. See the
chapter
“
Understanding and Planning
Remote Copy
”
in the
Remote Copy User
Manual
.
The cluster contains Remote
Copy, which like all other
SAN/iQ features, is compatible
with Multi-Site SAN.
Using Remote Copy with Multi-Site
SAN
The Multi-Site SAN software can be
used to create clusters that span multiple
networks (subnets) in larger Enterprise
data centers. The storage systems all
reside in the same site. However, the
cluster must be Multi-Site if it is to con-
tain storage systems from different sub-
nets.
The Multi-Site SAN features can
be used to set up clusters that
span multiple subnets in the
same site.
Multiple subnet clusters in the same
site
Designing the network for the Multi-Site SAN
Good network design is a critical part of setting up a Multi-Site SAN that meets your needs. A good
Multi-Site SAN network encompasses the following attributes:
•
Reliability
•
High availability
•
High performance
This section contains information about the minimum recommended network design considerations
when planning a network to support a Multi-Site SAN.
P4000 Multi-Site HA/DR Solution Pack user guide
13