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Saving and Restoring Configuration Information
An important feature of these management tools is the ability to save and restore
configuration information in a number of ways. Using the array's firmware
application, the configuration information (NVRAM) can be saved to disk. This
provides a backup of the controller-dependent configuration information such as
channel settings, host IDs, FC protocol, and cache configuration. It does not save
LUN mapping information. The NVRAM configuration file can restore all
configuration settings but does not rebuild logical drives.
The Sun StorEdge Configuration Service software can be used to save and restore all
configuration data, including LUN mapping information. It can also be used to
rebuild all logical drives and therefore can be used to completely duplicate an
array's configuration to another array.
Direct-Attached Storage
One powerful feature of Sun StorEdge 3500 series arrays is their ability to support
multiple direct-attached servers without requiring storage switches. They
accomplish this by using intelligent internal Fibre Channel networks. Servers can be
directly connected using built-in external Fibre Channel ports, if available, or add-in
Fibre Channel host adapter cards.
Sun StorEdge 3510 FC Array. The array automatically configures its ports to
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match the transfer speed and communication method of each connection.
Sun StorEdge 3511 SATA Array. Channels 0 and 1 automatically configure their
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ports to match the transfer speed and communication method of each connection.
Channels 4 and 5 only support 2 Gbyte transfer speed.
Standard DAS Configuration
FIGURE 2
12
Sun StorEdge 3000 Family Best Practices Manual • June 2004
Two DAS Configurations
High Availability DAS Configuration
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