HP D3604-90004 manual Switch Functions, Settings

2 Cabling Storage Devices and Setting SCSI Addresses

The switch setting location and functions are the same on both cages. The switch 6 setting differentiates the upper and lower cages.

Table 2-1. Switch Functions and Settings

E nglish

Switch

1

2

3

4

Functions

Not Used

Not Used

High/Low Addresses

Fast-Wide (68 pin)

SCSI Only.

Sets SCSI addresses for upper or lower eight addresses.

SCSI Address Zero

Sets middle shelf in the hot-swap cage to SCSI ID 0 or ID 8. The ID number depends on the setting of switch 3.

Settings

Always set to Off.

Always set to Off.

On Sets the drives to the upper eight SCSI addresses.

Off Sets the drives to the lower eight SCSI addresses.

See SCSI Address Settings table below for description of the settings.

On Sets the middle shelf in the cage (shelf 2 or shelf 5) to SCSI ID 0 or SCSI ID 8.

Off Sets the middle shelf to the normal SCSI address sequence.

See SCSI Address Settings table below for a description of the settings.

5	Remote Start	On	Internal control: Upper cage is set
	Determines control of the		to delayed start and lower cage is
			set to power-on at startup.
	hot-swap disk module
	power-on sequence.	Off	Power-on sequence is determined
			by the host.
6	Upper/Lower Cage	On	Lower cage.
	Identifies cage location.	Off	Upper cage.
		See SCSI Address Settings table below
		for description of settings.

It is important that the disk drives have a staggered power-up sequence. The storage system may shut down if all of the devices attempt to spin-up at the same time. If the staggered power-up sequence is not supported by the host system, be sure switch 5 is in the “ON” (default) position.

15