Mylex eXtremeRAID Installation Guide download pdf (Page 19)

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.

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Mylex eXtremeRAID Installation Guide Page 19