SPARC SuperCluster T4-4
 

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In this Document

Goal

Fix

Community Discussions

References

Applies to:

Goal

All SPARC SuperCluster systems that were deployed by Oracle Advanced Customer Services prior to the 1st December 2012 are effected by Bug 15799001 - "SUNBT7178081 SSC guest ldoms hostids are not unique guest domains" which causes all SuperCluster guest domains to have the same hostid of 0x84b31095. Although this is a minor issue it may cause confusion with applications which use a licence tied to a hostid or sending in data to Oracle for support issues. All SPARC SuperCluster installations after this time will use automatically generated mac addresses / hostids during guest domain creation and are not effected by Bug 15799001.

Fix

It's quite easy to identify if a SPARC SuperCluster platform is effected by this issue by logging into the primary logical domain and running the following command:

# ldm ls -l | awk '/HOSTID/ {print; getline; print}'
HOSTID
    0x85f50454
HOSTID
    0x84b31095
HOSTID
    0x84b31095

If you see multiple domains with the hostid of 0x84b31095 then your system was installed prior to 1st December 2012 and you'd be advised to apply the workaround below to avoid this issue.

As documented in the Oracle VM Server for SPARC 2.2 Administration Guide we use the mac address range 00:14:4F:FC:00:00 - 00:14:4F:FF:FF:FF for manual mac address allocation. We can use the following python script to randomly pick an address from that range so we can use with a guest:

#!/usr/bin/python

import sys
import random

def printf(format, *args):
    sys.stdout.write(format % args)

addr1=random.randint(0xfc, 0xff)
addr2=random.randint(0x00, 0xff)
addr3=random.randint(0x00, 0xff)

printf ('New mac address is: 00:14:4f:%x:%x:%x\n', addr1, addr2, addr3)

# ldm list
NAME             STATE      FLAGS   CONS    VCPU  MEMORY   UTIL  UPTIME
primary          active     -n-cv-  UART    128   523776M  0.2%  16h 47m
s10u10-EIS2-2    active     -t----  5002    64    256G     1.2%  13s
s11-sru5-1       active     -n--v-  5003    64    256G     0.2%  19m

# ldm ls -l | awk '/HOSTID/ {print; getline; print}'
HOSTID
    0x85f50454
HOSTID
    0x84b31095
HOSTID
    0x84b31095

Ensure that all applications running on the general purpose domains have been cleanly shutdown or failed over to another general purpose domain if using Oracle Solaris Cluster.

# ./mac.py
New mac address is: 00:14:4f:fd:5c:6d
# ./mac.py
New mac address is: 00:14:4f:fd:a0:57
# ldm stop s11-sru5-1
# ldm stop s10u10-EIS2-2
# ldm set-domain mac-addr=00:14:4f:fd:5c:6d s10u10-EIS2-2
# ldm set-domain mac-addr=00:14:4f:fd:a0:57 s11-sru5-1

Confirm that all MAC addresses have been set and all domains are now unique:

# ldm ls -l | awk '/HOSTID/ {print; getline; print}'
HOSTID
    0x85f50454
HOSTID
    0x84fd5c6d
HOSTID
    0x84fda057

Restart domains

# ldm start s11-sru5-1
# ldm start s10u10-EIS2-2

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References

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