StorCase Technology FC-to-SCSI Single & Dual RAID - Manual (Page 24)

FC-SCSI Dual RAID Module User's Guide - Rev. A01 StorCase Technology, Inc.
Installation 11
DUAL RAID CHANNEL CONFIGURATIONS
CAUTION: Offset VHDCI cable connectors must be used for proper fit. Failure to use
proper cables may result in damage to the VHDCI connectors on the I/O
repeater modules and Dual RAID Controller Module unit! RAID Controller
"Kits" containing external I/O cables are available; contact StorCase for
further ordering information.
VHDCI connectors are easily damaged by improper handling. Visually
inspect each connector for bent contacts and carefully align prior to
insertion.
NOTES: StorCase recommends the use of SCSI Ports A-1 & A-2 on the I/O Repeater
Modules when configuring typical RAID channels (as shown in Figures
7, 8, & 9). In the special cases where extra length cables are required
(up to 12m maximum), use Port B instead.
Controller A (Primary) disk channel SCSI ID (Initiator ID) is factory set to
SCSI ID7. DO NOT configure any other devices to ID7 on the disk channel,
or the configuration will fail to operate!
Controller B (Secondary) disk channel SCSI ID (Initiator ID) is factory set
to SCSI ID6. DO NOT configure any other devices to ID6 on the disk channel,
or the configuration will fail to operate!
StorCase does not recommend changing the factory default Initiator ID(s).
Up to 15 disks per SCSI channel with stand-alone RAID Controller Module
unit installed (15 Disks x 4 Channels = 60 Disks Total).
Up to 14 disks per SCSI channel with dual RAID Controller Module unit
installed (14 Disks x 4 Channels = 56 Disks Total).
Default operating mode for the Dual RAID Controller Module unit is Active-
Passive.
Default operating mode for the Single RAID Controller Module unit is Stand-
Alone Dual Port.
Default operating mode for the Single RAID Controller Module upgrade is
Stand-Alone Dual Port.
If upgrading a Single RAID Controller Module unit with the Single RAID
Controller Module upgrade (to a Dual RAID Controller Module configura-
tion), make sure to reconfigure the operating mode accordingly.
I/O Repeater Modules must be used in conjunction with the FC-to-SCSI
RAID Controller Module unit.