Sun Fire[TM] 6800: What happens if one power grid fails?

Asset ID:	1-71-1003333.1
Update Date:	2017-02-02
Keywords:

Solution Type Technical Instruction Sure

Solution 1003333.1 : Sun Fire[TM] 6800: What happens if one power grid fails?

Applies to:

Sun Fire 3800 Server - Version Not Applicable and later
Sun Fire 4800 Server - Version Not Applicable and later
Sun Fire 6800 Server - Version Not Applicable and later
All Platforms

Goal

To discuss this information further with Oracle experts and industry peers, we encourage you to review, join or start a discussion in an appropriate
My Oracle Support Community - Oracle Sun Technologies Community.

This article addresses what happens if a power grid fails on a Sun Fire[TM] 6800.

Solution

The Sun Fire 6800 has two power grids:

If power grid0 fails:

Domains A & B will have no power
SB0, SB2, SB4, IB6 & IB8 will have no power
RP0 and RP1 will have no power
PS0, PS1, & PS2 will have no power

If power grid1 fails:

Domains C & D will have no power
SB1, SB3, SB5, IB7 & IB9 will have no power
RP2 and RP3 will have no power
PS3, PS4, & PS5 will have no power

You can verify this by running a SC> showboards -p power

SC> showboards -p power

Component     Pwr   Grid                                                        
---------     ---   ----                                                        
SSC0          On    No grid                                                     
SSC1          On    No grid                                                     
ID0           On    No grid                                                     
PS0           On    Grid 0                                                      
PS1           On    Grid 0                                                      
PS2           On    Grid 0                                                      
PS3           On    Grid 1                                                      
PS4           On    Grid 1                                                      
PS5           On    Grid 1                                                      
FT0           On    Grid 0 and/or Grid 1                                        
FT1           On    Grid 0 and/or Grid 1                                        
FT2           On    Grid 0 and/or Grid 1                                        
FT3           On    Grid 0 and/or Grid 1                                        
RP0           On    Grid 0                                                      
RP1           On    Grid 0                                                      
RP2           On    Grid 1                                                      
RP3           On    Grid 1                                                      
/N0/SB0       On    Grid 0                                                      
/N0/SB1       On    Grid 1                                                      
/N0/SB2       On    Grid 0                                                      
/N0/SB3       On    Grid 1                                                      
/N0/SB4       On    Grid 0                                                      
/N0/SB5       On    Grid 1                                                      
/N0/IB6       On    Grid 0                                                      
/N0/IB7       On    Grid 1                                                      
/N0/IB8       On    Grid 0                                                      
/N0/IB9       On    Grid 1

Please Note: SB and IB boards can be assigned to any Domain in the platform. Thus you need to keep resources allocated to the same grid. This helps the Reliablity & Availability on a power grid failure.

Product
Sun Fire 6800 Server
Sun Fire 3800 Server
Sun Fire 4800 Server

Attachments

This solution has no attachment