Asset ID:	1-71-1018136.1
Update Date:	2009-03-04
Keywords:

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Solution Type  Technical Instruction Sure

Solution  1018136.1 :   Sun StorEdge[TM] A5x00 array: Internal Addressing  


PreviouslyPublishedAs
229476

Description
This document lists the host target address assignments for each Box ID in a hub or daisy-chained configuration. The Box ID, on which the target address is based, is set on the Front Panel Module (FPM). Not all the 127 allowable device addresses per loop are used.


Steps to Follow
Sun StorEdge[TM] A5x00 array: Internal Addressing

Target assignments for the A5000/A5100 array

Box ID	Front Drives	Rear Drives
0	t0-t6	t16-t22
1	t32-t38	t48-t54
2	t64-t70	t80-t86
3	t96-t102	t112-t118

Target assignments for the A5200 array

Box ID	Front Drives	Rear Drives
0	t0-t10	t16-t26
1	t32-t42	t48-t58
2	t64-t74	t80-t90
3	t96-t106	t112-t122

The formula used to calculate the target numbers is:

(BoxID x 32) + (Backplane# x 16) + (Disk Slot #) = Target ID

In this formula,

• The 'Backplane#' is:
  • 0: Front of the array
  • 1: Back/Rear of the array

• The '(Disk Slot #)' is:
  • A5000/A5100 front and rear disk slot #:
    Slots 0 thru 6 (left to right)
  • A5200 front and rear disk slot #:
    Slots 0 thru 10 (left to right)

Product
Sun StorageTek A5200 Array
Sun StorageTek A5000 Array
Sun StorageTek A5100 Array

A5x00, A5200, photon, target, addressing, Box ID, FPM
Previously Published As
75284

Change History
Date: 2005-01-19
User Name: 25440
Action: Approved
Comment: Publishing.
Version: 4
Date: 2005-01-19
User Name: 25440
Action: Accept
Comment:
Version: 0
Date: 2005-01-19
User Name: 89273
Action: Approved

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