Storcase-technology DX1/200-U2/RH Ultra2 User Manual download pdf

D89-0000-0087 Rev. B00 StorCase Technology, Inc.

DE100/DE200 Ultra2 (LVD) Hot Swap/Repeater Isolator Board

DATA EXPRESS

DE100/DE200 ULTRA2 (LVD) HOT

SWAP/ REPEATER ISOLATOR BOARD

(This insert supplements the Data Express

DE100i-SWCU2, DE100i-SWU2, DE100i-SWU2X,

DE200i-SWCU2, and DE200i-SWU2 User's Guides; it provides specific information regarding

the Ultra2 (LVD) Hot Swap/Repeater Isolator Board. Refer to the individual User's Guides for

specific frame and carrier information.)

The Ultra2 (LVD) Hot Swap/Repeater Isolator Board (Figure 1) is an upgrade attachment for

the DE100i-SWCU2, DE100i-SWU2, DE100i-SWU2X, DE200i-SWCU2, and DE200i-SWU2

receiving frames. This attachment provides both a hot swap feature, and a repeater function

as described below.

Hot Swap Function

The DE100/DE200 Hot Swap/Repeater Isolator Board (P/N DX1/200-U2/RH) allows the in-

stallation, removal or exchange of Data Express 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 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 re-scan its SCSI bus for physically attached

drives, and will then be able to access the new or changed drive.

Repeater Function

Without the DE100/DE200 Hot Swap/Repeater Isolator Board installed, Data Express models

DE100i-SWCU2 and DE200i-SWCU2 can only support up to 9-drive Ultra2 (LVD) implementations,

while the DE200i-SWU2 can only support up to 2 drives. However, the DE100i-SWU2X can

support Ultra2 (LVD) applications with up to 15 SCSI devices.

Attaching the Isolator Board

The DE100/DE200 may be purchased with the isolator board factory-installed. If the board

has not already been attached to the Data Express receiving frame, follow the instructions

below to add the board. Otherwise, proceed to the section "Using the Isolator Board" for

usage instructions.

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Summary of Contents

Page 1 - SWAP/ REPEATER ISOLATOR BOARD

D89-0000-0087 Rev. B00 StorCase Technology, Inc.DE100/DE200 Ultra2 (LVD) Hot Swap/Repeater Isolator BoardDATA EXPRESS® DE100/DE200 ULTRA2 (LVD) HOTSW

Page 2

DE100/DE200 Ultra2 (LVD) Hot Swap/Repeater Isolator BoardD89-0000-0087 Rev. B00 StorCase Technology, Inc.1. Remove jumpers on J4 Pins 7 & 8, and

Page 3 - Figure 2: J4 Jumpers

D89-0000-0087 Rev. B00 StorCase Technology, Inc.DE100/DE200 Ultra2 (LVD) Hot Swap/Repeater Isolator BoardFigure 3: Attaching the Isolator BoardFi

Page 4 - Using the Isolator Board

DE100/DE200 Ultra2 (LVD) Hot Swap/Repeater Isolator BoardD89-0000-0087 Rev. B00 StorCase Technology, Inc.Using the Isolator BoardCarrier RemovalFollo

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Storcase-technology DX1/200-U2/RH Ultra2 User Manual

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