Sun Storage 3310 and 3320 Arrays: How to Identify Disk IDs and Correct Backend Cabling

Asset ID:	1-71-1012313.1
Update Date:	2018-05-01
Keywords:

Solution Type Technical Instruction Sure

Solution 1012313.1 : Sun Storage 3310 and 3320 Arrays: How to Identify Disk IDs and Correct Backend Cabling

Applies to:

Sun Storage 3310 Array - Version Not Applicable and later
Sun Storage 3320 SCSI Array - Version Not Applicable and later
All Platforms

Goal

This document describes how to identify the IDs of disk drives in Sun Storage 3310 and 3320 SCSI RAID Arrays, with or without attached expansion units, in single-bus or split-bus configuration. It also explains how to identify the cabling schemes for these devices.

Solution

According to SCSI standards, a channel in a SCSI bus can have upto 16 device IDs, from 0 to 15, where IDs 6 & 7 are reserved for internal device usage.

In single-bus configurations of the 3310 and 3320 RAID Arrays, the disk IDs are from 0 to 13 under Channel 0, where IDs 6 & 7 are reserved.

In split-bus configurations (also known as dual bus) of the 3310 and 3320 RAID Arrays, the 12 disk IDs are split between two channels, CH2 and CH0. Both channels have disk IDs from 0 to 5.

To understand more about single-bus and split-bus configuration, refer to <Document 1003147.1> Understanding single and dual bus configurations in the Sun StorEdge[TM] 33x0.

The disk IDs for all 12 disks in single-bus and split-bus configuration of Sun Storage 3310 or 3320 RAID Arrays connected to one host without expansion units are shown below:

SINGLE	SPLIT	SINGLE	SPLIT	SINGLE	SPLIT	SINGLE	SPLIT
CH0-ID0	CH2-ID0	CH0-ID3	CH2-ID3	CH0-ID8	CH0-ID0	CH0-ID11	CH0-ID3
CH0-ID1	CH2-ID1	CH0-ID4	CH2-ID4	CH0-ID9	CH0-ID1	CH0-ID12	CH0-ID4
CH0-ID2	CH2-ID2	CH0-ID5	CH2-ID5	CH0-ID10	CH0-ID2	CH0-ID13	CH0-ID5

For more information about the backend cabling without expansion units, refer the following section from Sun StorEdge 3000 Family Installation, Operation, and Service Manual for the Sun StorEdge 3310 SCSI Array:

4.7 Connecting Cables for a Single-Bus Configuration
4.8 Connecting Cables for a Split-Bus Configuration

The disk IDs for all 12 disks in single-bus and split-bus configuration of the first expansion unit are shown below.

SINGLE	SPLIT	SINGLE	SPLIT	SINGLE	SPLIT	SINGLE	SPLIT
CH2-ID0	CH2-ID8	CH2-ID3	CH2-ID11	CH2-ID8	CH0-ID8	CH2-ID11	CH0-ID11
CH2-ID1	CH2-ID9	CH2-ID4	CH2-ID12	CH2-ID9	CH0-ID9	CH2-ID12	CH0-ID12
CH2-ID2	CH2-ID10	CH2-ID5	CH2-ID13	CH2-ID10	CH0-ID10	CH2-ID13	CH0-ID13

The disk IDs for all 12 disks in single-bus and split-bus configuration of the second expansion unit are shown below. Channel 3 is used for both single-bus and split-bus configurations on the second expansion unit.

SINGLE	SPLIT	SINGLE	SPLIT	SINGLE	SPLIT	SINGLE	SPLIT
CH3-ID0	CH3-ID0	CH3-ID3	CH3-ID3	CH3-ID8	CH3-ID8	CH3-ID11	CH3-ID11
CH3-ID1	CH3-ID1	CH3-ID4	CH3-ID4	CH3-ID9	CH3-ID9	CH3-ID12	CH3-ID12
CH3-ID2	CH3-ID1	CH3-ID5	CH3-ID 5	CH3-ID10	CH3-ID 10	CH3-ID13	CH3-ID13

For more information about the backend cabling procedure to connect one or two expansion units, refer to the following section from Sun StorEdge 3000 Family Installation, Operation, and Service Manual for the Sun StorEdge 3310 SCSI Array:

4.10 Cabling to Expansion Units

Do you still have questions? You can use My Oracle Support Communities. Communities put you in touch with industry professionals like yourself. They are monitored by Oracle support engineers, so you can expect reliable and correct answers. Ask questions and see what others are asking about in the Disk Storage 2000, 3000, 6000 RAID Arrays & JBODs Community.

Previously Published As
80184

Attachments

This solution has no attachment