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Pathlight VX Site Preparation Guide 57
Once the tasks in this chapter have been completed, make sure that the Pathlight VX installers and
installation coordinators have access to all data relating to planning the Install and Configuration. This
includes the Pathlight VX Site Preparation Worksheet, Sizing Tool, and Visio diagrams. If there is any
information described in the previous chapters not available, please also communicate this to the installing
engineers so the information can be collected prior to the installation. For information about installing and
configuring the Pathlight VX, refer to the Pathlight VX Installation Guide.
Physical Library LUN Mapping for Libraries that Use Tape Drive
Connections
Some libraries present the device LUN that represents the physical library on the same communication path
as a tape drive. In order to communicate to the library, Pathlight VX must access the device LUN that
represents the physical library using a tape drive connection.
The following ADIC libraries have the capability of communicating using a tape drive connection:
Scalar i500
Scalar 100 with LTO3 and firmware version 6.03.0004 and later (optional feature)
Some Non-ADIC physical libraries supported on Pathlight VX (check respective product
documentation)
Please contact ATAC for more information regarding the latest configuration requirements that are
necesssary in order for Pathlight VX to function with libraries that use the drive control path feature.
Use Table 50
on page 58 to prepare to map LUNs for libraries that communicate with Pathlight VX using
tape drive connections, such as the Scalar i500.
Use the World Wide Port Name (WWPN) column to enter WWPN information of the IOB and MS
HBA to help reconcile which PVX WWPNs to use when configuring switch zoning to a Scalar i500.
Use the DET Partition Control Path column to specify which drive presents the library LUN for the
DET media partition.
•Use the APP Partition Control Path column to specify which drive presents the library LUN for the
application media partition.
•Use the Library Device LUN Definitions columns to specify the address of the tape drives. Tape
drives are addressed by module and tape drive bay within a module. The tape drive bays within a
module are numbered from top to bottom.
The address of a tape drive follows the format of: <module><drivebay>.
The control module is numbered 0 (zero).
Modules stacked above the control module are addressed with positive integer digits.
Modules stacked below the control module are addressed with negative integer digits.
For example:
[0,1] The control module is 0, the CM drive location is 1.
[1,3] The module above the CM is 1, the drive location is 3.
[-1,2] The module below the CM is -1, the drive lcoation is 2.
In Table 50
on page 58, drives 1 - 4 are Application Partition Drive members, and drives 5 - 6 are DET
partition drive members.
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