Mylex eXtremeRAID 1100, Installation Manual

Page: 19 / 74

Preinstallation Planning
775013 2-5
SCSI Drive Preparation
To prepare the drives for installation follow these steps:
1. Remove any terminators attached to the drive or set any drive
termination jumpers to the disabled position.
2. Set the SCSI IDs on the drives.
3. Enable term power on the drives.
Refer to the drive manual for specific information about drive configuration
settings.
To get best performance from the controller, distribute the drives equally
across the SCSI channels, and set the controller’s data transfer rate to the
optimum for the drives being used.
Mixing Narrow and Wide SCSI Drives
Do not mix narrow and wide SCSI devices on a single channel. If mixing of
narrow and wide SCSI devices is desired, dedicate at least one channel to
narrow SCSI, and at least one channel wide SCSI.
Mixing LVD with Single-ended Drives
If LVD capable drives are installed on a channel with single-ended drives, all
drives on the channel will operate as if they were single-ended drives. This
will also limit the bus length to the single-ended bus length specified in
Table 2-1.