
Chapter 2. Netfinity solutions 39
Figure 23. Fiber optic cables with SC connectors
2.4 Netfinity storage enclosures
The Netfinity EXP200 Expansion Enclosure is a rack-drawer storage unit
containing 10 hot-swap drive bays that support both half-high and slim-line 7200
RPM or 10,000 RPM SCSI disk drives.
The EXP200 supports Wide Ultra2 (80 MBps) transfer speeds up to 20 meters
using LVDS SCSI cabling. The EXP200 shares the same drive options as the new
Netfinity 8500R, Netfinity 5600, and later servers.
Figure 24. Netfinity EXP200
The EXP200 contains an electronics board (Environmental Services Monitor or
ESM board) that interfaces between the external SCSI cables and hot-swap
backplanes. The ESM board provides two main functions:
• Status reporting for the subsystem through the SCSI interface
• SCSI connection between the subsystem and the server
The EXP200 has one or two hot-swap redundant 350W power supplies. Each
power supply contains its own power cord. In addition, two hot-swap cooling units
containing separate dual fans provide cooling redundancy. If a failure occurs with
either of the redundant power supplies or cooling fans, an LED will light to
indicate a fault and its location.
The EXP200 has two SCSI connections, both using the VHDCI .8 mm 16-bit SCSI
connector.
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