StorCase Technology, Inc.
DE100i-SW/SWC User's Guide - Rev. G01
18
Appendix B - Factory-Installed Options
Appendix B - Factory-Installed Options
DE100 Hot Swap Board
The DE100 SCSI Hot Swap Board (P/N DX100-SW/H) allows the installation, removal or
exchange of DE100i-SW and DE100i-SWC 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 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
The DE100i-SW and DE100i-SWC may be purchased with the Hot Swap option factory-
installed. If the Hot Swap Board has not already been attached to the receiving frame, follow
the instructions below to add the Hot Swap Board:
NOTE:
The drive carrier must be installed in the receiving frame when removing or
attaching the Hot Swap Board to ensure proper alignment between the motherboard
and the disk drive.
1. Remove the two (2) Phillips head machine 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). Also make sure 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 board and gently push the Hot Swap
Board into position. Make certain that all connectors are properly mated.
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