StorCase Technology DE100i-S - Manual (Page 25)

StorCase Technology, Inc. DE100i-S User's Guide - Rev. H00
18 Appendix B - Factory-Installed Options
Appendix B - Factory-Installed Options
Hot Swap Board
The SCSI Hot Swap Board allows the installation, removal or exchange of DE100i-S carriers
while your computer system is operating by monitoring and protecting the computer system
and other peripheral devices on the SCSI Bus. The Hot Swap option eliminates the need to
shut down your system when adding or removing a SCSI device by performing two functions:
1. Delays power up/down of the drive until the time period between SCSI bus cycles.
This prevents the interruption of any SCSI bus activity being done by other devices
on the bus.
2. Prevents drive power sequencing from generating noise on the SCSI bus, thus
preventing data transfer corruption on other devices.
Please note that, whereas UNIX and Apple based systems provide mount/dismount drive
commands, most PC systems do not provide such a feature. When using one of these operating
systems, it may be necessary to reboot the computer after adding or changing a drive. This
reboot activity will force the SCSI host adapter to rescan its SCSI bus for physically attached
drives, and will then be able to access the new or changed drive.
Attaching the Hot Swap Board
If the Hot Swap Board is not already attached to the DE100 receiving frame, follow the steps
below for installation instructions. Otherwise, proceed to the "Using the Hot Swap Board"
section for usage instructions.
NOTE: The device carrier should be locked into the receiving frame prior to the
following procedures to maintain proper connector alignment between
the receiving frame and the device carriers.
1. Remove the two (2) Phillips Pan Hd. screws from the receiving frame motherboard
and set the screws aside (Figure B-1).
2. Remove jumpers on the receiving frame motherboard locations J4 - Pins 7 & 8, and
J6 - Pins 1 & 2 (Figure 5). Verify that W2 is set to position "A" (default setting) to
disable onboard termination from the receiving frame motherboard.
3. Attach the two (2) provided stand-offs into the receiving frame motherboard holes
in place of the two removed screws. Carefully align the connectors of the Hot Swap
Board with the connectors on the receiving frame motherboard and gently push the
Hot Swap Board into position. Make certain that all connectors are properly mated.
4. Attach the Hot Swap Board to the receiving frame motherboard by using the two
screws removed earlier and insert them through the Hot Swap Board into the stand-
offs.