StorCase Technology DE300i-SW - Manual (Page 27)

20 Appendix B - Factory-Installed Options
StorCase Technology, Inc. DE300i-SW User's Guide - Rev. A01
Appendix B - Factory-Installed Options
Hot Swap Board
The DE300i-SW/H SCSI Hot Swap Board allows the installation, removal or exchange of
DE300i-SW 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 DE300 receiving frame, follow the steps
below for installation instructions. Otherwise, proceed to the "Using the Hot Swap Board"
section for usage instructions.
IMPORTANT NOTE: The device carriers should be locked into the receiving frame prior to the
following procedure to maintain proper connector alignment between the