StorCase Technology DE150i-SWC - Manual (Page 25)

StorCase Technology, Inc. DE150i-SWC User's Guide - Rev. B00
18 Appendix B - Factory-Installed Options
Appendix B - Factory-Installed Options
DE150 Isolator Board
The Isolator Board is an upgrade attachment for the DE150i-SWC receiving frame. This
attachment provides a bus-isolating feature as described below.
Bus-Isolating Hot Swap Function
The DE150 SCSI Isolator Board (P/N DX100-SW/H) provides an enhanced, bus-isolating hot
swap function by allowing the installation, removal or exchange of DE150i-SWC carriers while
your computer system is operating by monitoring and protecting the computer system and other
peripheral devices on the SCSI Bus. The Isolator Board 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 re-scan its SCSI bus for physically attached
drives, and will then be able to access the new or changed drive.
Attaching the Isolator Board
The DE150i-SWC may be purchased with the Isolator Board factory-installed. If the Isolator
Board has not already been attached to the receiving frame, follow the instructions below to
add the board:
NOTE: The drive carrier must be installed in the receiving frame when removing or
attaching the Isolator Board to ensure proper alignment between the motherboard
and the drive.