InfoDoc ID   Synopsis   Date
28285   Sun Fire (3800-6800) - Centerplane/ID board configuration answers   14 Aug 2001

Status Issued

Description
In the unlikely event you ever have to replace a Centerplane on a Sun Fire 3800, you may be
prompted to answer a series of questions since the Centerplane FRU, which incorporates
the ID board, is shipped with an unprogrammed SEPROM.

SCApp should automatically program the static portion (such as MAC address, S/N etc.)
of the ID Board, but if it can't, you'll be prompted to answer the following questions.

Please enter System Serial Number from label:
Please enter Platform Model Number (3800, 4800, 4810, 6800):
Please enter System MAC Address from label (aa:bb:cc:dd:ee:ff) :
Please enter Host ID from label (aabbccdd) :
Is this COD (Capacity on Demand) system ? (Y/N)


Here's how to answer these questions?:

1. System serial number: You can find this on a label on the machine or the rack.
A serial number is always 8 alphanumeric's long, and the 4th digit is always an 
alpha character.
                     
Example: 104H2E96

2. Platform model number: Choose the correct platform type from the available 
list. (3800, 4800, 4810, 6800)

3. System MAC address from label. This is a tricky one as it is not asking for 
the SSC0 MAC address but the MAC address for domain_A. Here's how to derive it:

     3800/48x0 systems:                      6800 systems:

     domain_A = base_mac_addr                domain_A = base_mac_addr
     domain_B = base_mac_addr+1              domain_B = base_mac_addr+1
         SSC0 = base_mac_addr+2              domain_C = base_mac_addr+2
         SSC1 = base_mac_addr+3              domain_D = base_mac_addr+3
                                                 SSC0 = base_mac_addr+4
                                                 SSC1 = base_mac_addr+5

Since the mac_address for SSC0 is displayed just after SCPOST, you can derive 
the domain_A mac_address using the table above.

Example: SSC0 displayed the following mac_address after a reset, the platform 
type = 6800

SSC0 mac_address: 8:0:20:d8:86:57

So domain_A's mac_address = 08:00:20:d8:86:53

4. Host-ID from label. The hostid follows the following convention:

80 <last_3_octets_from_domain_A_mac_addr>

Example: 80d88653   (derived from the example above)

5. Is this is a COD system. At this point in time, always answer 'N' (no)

            
INTERNAL SUMMARY:
Submitted by George.Bolduc@east            
SUBMITTER: SSE APPLIES TO: Hardware/Sun Fire ATTACHMENTS:


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