Rackable Systems OmniStor 4900F Series, User Manual, Page: 78 / 196

Chapter 3 - Setup and Installation
Stand-Alone Dual Port Single Host Dual Connection Configuration
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Stand-Alone Dual Port Single Host Dual Connection Configuration
1
Set the jumper (JP4) on the Disk I/O card to configure the bus speed mode.
Loosen the two captive fastener screws on the Disk I/O card and pull it from the
enclosure using the fastener screws. Locate the jumper JP4 and position it for the
desired speed setting, (installed on one pin only for 2 Gb mode and on both pins
for 1 Gb mode).
Disk I/O Card
2
Re-install the Disk I/O card. Repeat this step for the second Disk I/O card.
Disk I/O Card Jumper Settings for the OmniStor 4911F/4912F/4931F/4932F Enclosures
JUMPER INSTALLED BOTH PINS INSTALLED ONE PIN (OFFSET)
JP1 Wahoo2 Controllers Only * Not Applicable
JP2 Wahoo2 Controllers Only * Not Applicable
JP3 Split Bus Mode
JBOD Enclosures Only * Single Bus Mode
RAID Enclosures and Daisy
Chain JBOD Enclosures
JP4 1 Gb/sec Bus Speed Mode * 2 Gb/sec Bus Speed Mode
* indicates default setting