Understanding the PowerVault 35F Configuration: Dell PowerVault 35F User's Guide
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Understanding the PowerVault 35F Configuration: Dell PowerVault 35F
User's Guide
General Fibre Channel Configuration
|
General SCSI Configuration
|
Fibre Channel Host to SCSI Target
Configuration
|
Address Mapping
|
Indexed Addressing
|
Auto Addressing
|
SCC Addressing
|
SCSI Host
to Fibre Channel Target Configuration
Of primary importance in configuring the Dell™ PowerVault™ 35F is determining the mode of operation required.
The unit can be configured to support Fibre Channel hosts communicating with SCSI targets. The default configuration
of the unit allows for Fibre Channel hosts to connect to SCSI targets. Configuration is needed in some cases to modify
the method in which this occurs, as well as to support SCSI hosts communicating with Fibre Channel targets. Other
functions and features can be configured as well, and are discussed further in this section.
A typical configuration would have a Fibre Channel host connecting either via a Fiber Channel switch, or directly to
the PowerVault 35F, with SCSI target devices attached to the PowerVault 35F. These configurations, using a tape
library and drives, are represented in
Figure 1
.
The factory default configuration of the unit allows such a configuration to work without further configuration in most
cases. It should, however, be recognized that more complex installations or specific application requirements may
require one or more configuration elements to be changed from the default settings.
Figure 1. Configurations with tape library
An understanding of the basic characteristics of Fibre Channel and SCSI devices is recommended before configuring
the PowerVault 35F.
General Fibre Channel Configuration
On a Fibre Channel arbitrated loop, the PowerVault 35F appears at a single Arbitrated Loop Physical Address
(AL_PA). Fibre Channel devices support two methods for obtaining an AL_PA, these being soft or hard addressing.
The PowerVault 35F can be configured to use soft addressing (default) or hard addressing with a selected value.
Soft Addressing
When acquiring a soft address, the PowerVault 35F acquires the first available loop address starting from address 0. In
this mode, the PowerVault 35F automatically obtains an available address and participates on the loop, as long as there
