Clustering (Dual Host) Configuration - nStor Corporation Ultra S2S User Manual

Clustering (Dual Host) Configuration
When using this configuration, ensure that file locking is setup in this clustering
environment (e.g., Microsoft Windows NT/MSCS, Sun Microsystems Solaris/
DiskSuite, etc.).
Prior to beginning the cabling, identify the configuration for your installation.
Note the card locations, then install your cards and connect the cabling based on
the diagrams and procedures.
Differential SCSI
Two host and one subsystem
This configuration provides a Differential SCSI solution using a single dual-bus
CR8e subsystem connected to both host computers, each with Differential SCSI
host adapters. From this configuration an array can be created using eight (8) disk
drives. This configuration also creates what is known as a fail-over/fail-back
solution.
1 Verify that the jumper at location JP1 on the S2S Interface card is removed.
This will terminate the SCSI bus.
Rear View CR8e with Dual-Bus Module
I/O Interface
Card
Ultra S2S RAID Controller
S2S Differential Interface Card
(Terminate card removing jumper at JP1)
RIGHT SIDE
Master
SAF-TE Card
12 meter data cable
Chl x
Differential
Host Adapter
Host Computer #2
Chl x
Differential
12 meter data cable
Host Adapter
Host Computer #1

Clustering (Dual Host) Configuration

Installation
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