SL8500 - Power Failure Troubleshooting Process

Asset ID:	1-71-1014160.1
Update Date:	2012-07-30
Keywords:

Solution Type Technical Instruction Sure

Solution 1014160.1 : SL8500 - Power Failure Troubleshooting Process

Applies to:

Sun StorageTek SL8500 Modular Library System - Version Not Applicable and later
All Platforms
Checked for relevance on 27-July-2012.

Goal

How to trouble shoot power failure:

Internal power loss

Internal power failure

Power missing

Fix

Resolution
There are five power grids in the SL8500 Library:

1. Standard AC power grid (N+1 configuration).

2. Optional second (redundant) AC power grid - 2N configuration.

3. DC power grid for tape drive bus operation contains the following DC power supplies: PS,AC/DC,+48VG,24A,+12V,4A,1200W.

4. DC power grid for HandBot bus operation contains the following DC power supplies: PS,AC/DC,+48VG,24A,+12V,4A,1200W.

5. DC power grid for customer interface module components (elevator, turntables, service safety door, OP Panel and CAPs) contains the following DC power supplies: PS,AC/DC,+48VG,24A,+12V,4A,1200W.

If the effected areas are contained within the above identified DC grids (items 3, 4, or 5), suspect the controlling power supplies are failing.

DC power grid for TAPE DRIVE bus operation contains the following DC power supplies:

WITH N+1 POWER - 1,2,3,4,7,8,13,14,19,20.

WITH 2N POWER - 1,2,3,4,7,8,9,10,13,14,15,16,19,20,21,22.

DC power grid for HandBot bus operations contains the following DC power supplies:

WITH N+1 POWER - 5,6,11,12,17,18.

WITH 2N POWER - 5,6,11,12,17,18,23,24.

DC power grid for CUSTOMER INTERFACE MODULE bus operation contains the following DC power supplies:

WITH N+1 POWER - 25, 26.

WITH 2N POWER - 25, 26.

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