Rackable Systems OmniStor 4900F Series, User Manual, Page: 99 / 196

Chapter 3 - Setup and Installation
Multi-Port Mirrored Single Host-Dual Connection Configuration
85
Multi-Port Mirrored 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 for 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 step 1 for the second Disk I/O card.
3
Locate the switches on the SES Controller card and set them as indicated in the
illustration on the following page. Refer to “SES Controller Card Switch Setting
Overview” on page 56 for the other available settings.
Disk I/O Card Jumper Settings for the OmniStor 4921F/4922F/4941F/4942F 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