Sun Microsystems SL8500 manual Drive Bay Locations, Bay Address

A P P E N D I X B

Drive Bay Locations

The SL8500 library features automatic detection of drives that are added or replaced.

There are four types of addressing schemes for drives:

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Bay address (the physical location)

Internal address (assigned by the library firmware)

HLI-PRC (Host LMU Interface - panel, row, column address assigned by the host software)

System addresses (assigned by the operating system)

Bay Address

The drive bay address is a two-digit number (01-64) representing the physical locations into which drive tray assemblies are inserted. The bay number of a drive is strictly internal to the library, defined by a drive’s position within a drive array. A drive is automatically assigned a number from 1– 64 by the library controller after the drive is installed and the library is re-initialized.

A decal on the rear of the Drive and Electronics Module depicts the bay numbers, as shown in TABLE B-1 on page 125. The bay numbers indicate the physical location of drives. You have to be familiar with the bay numbers to locate a drive to perform a manual mount (see “Manual Mode of Operation” on page 59).

TABLE B-1Drive Bay Address

Rail Number	Drive Bay Assembly Number 4
	Drive 61	Drive 62	Drive 63	Drive 64
1
	Drive 57	Drive 58	Drive 59	Drive 60
	Drive 53	Drive 54	Drive 55	Drive 56
	Drive 49	Drive 50	Drive 51	Drive 52
Rail Number	Drive Bay Assembly Number 3

96154 • Revision K 125