
8 Description
SNC
The SNC houses the FC blades
1
and serves as a connectivity point for FC hosts. ADIC’s FC blade
technology enables the blades to instantiate virtual tape drives and changers with which FC hosts can
interact. These virtual devices are created using emulation software which allows them to respond to SCSI
host commands exactly as a tape drive of an ADIC library changer.
The SNC emulates physical libraries and handles all library activity by processing move media requests,
performing read / write operations, and executing import / export operations. Figure 3
shows the front view
of a 2 FC blade SNC, with the utility modules and various ports identified. The front panel of the SNC is
visible when the Pathlight VX bezel is removed.
Figure 3 SNC - front view
FC Switch
The FC switch
2
is a component in the Pathlight VX High-Performance Configuration, and provides
connectivity between all system components (MS, SNC, and RAID storage disk) and, if attached, one or
more physical libraries. Figure 4
shows the front view of the FC switch, with the power buttons and port
readiness LED identified. For information about this LED, refer to FC Switch LEDs
on page 169.
Figure 4 FC switch - front view
1. Depending on the specific Pathlight VX configuration, the SNC houses either 1 or 2 FC blades. The Entry-Level
Configuration has 1 FC blade in the SNC. The Standard and High-Performance Configurations have 2 FC blades in the
SNC.
2. The FC switch is not included in either the Pathlight VX Entry-Level or Standard Configurations.
utility module 2
utility module 1
AC power
receptacle
UM1-
SER1
UM1-
LAN1
AC power
receptacle
UM2-
SER1
UM2-
LAN1
UM2-
SER2
UM1-
SER2
power
connection
protector
UM2-
LAN2
UM2-
LAN2
port readiness LED
power buttons
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