Memory shortage on Sun Fire 12K/15K CP1500 System Controllers with 256MB running Solaris 10 and System Management Services (SMS) 1.6 may cause domain outages, longer than normal domain recovery times, and delayed DR operations.

This issue can occur on the following platforms

• Sun Fire 12K/15K with CP1500 System Controllers with 256MB running Solaris 10 and SMS 1.6

Note: Solaris 8 and Solaris 9 are not affected by this issue.

To determine if a system is equipped with a CP1500 System Controller, the following command can be used:

    # uname -i
    SUNW,UltraSPARC-IIi-cEngine

If the system is equipped with a CP1500 System Controller, the output of the "uname -i" command will be the same as the example above.

To determine the amount of memory on the system, the following command can be used:

    # /usr/platform/sun4u/sbin/prtdiag | grep "Memory size"
    Memory size: 256 Megabytes

If the described issue occurs, domain outages, longer than normal domain recovery times, and delayed response for SMS commands (show*) may be experienced.

To determine if a system has been affected by this issue, check the system scan rate and threads waiting by using the vmstat(1M) command:

  $ vmstat 3
  memory page     disk faults  cpu
  r b w     swap   free   re   mf     pi     po     fr      de   sr m1 m1 m2 m2 in     sy     cs  us  sy  id
  2 0 0    3986744  16648  144 1109    847    216    314     0  795 65 65 16 16 731  24134   2482  23  33  45
  1 0 385  3959912   4704   14 1562   1791     40    144     0  225 166 166 12 12 1114  41561   2971  37  50  13
  1 0 385  3957448   3736   78 1428   1795   1428   3481  3512 16365 154 154 30 30 1171  35501   2749  23  46  31
  2 0 382  3951888   3776   86 1264   1634   1644   2075  2856 11880 143 143 58 58 1262  27909   2572  17  37  46
  0 0 381  3947664   3992  108 1614   1907   2043   3168  2320 27707 154 154 74 74 1387  23405   2227  18  48  33

Note: The "w","sr", and "de" column should usually be 0.

To run Solaris 10 with System Management Services (SMS) 1.6 on an E12/15K SC, the system controller must be upgraded to a CP2140 with 1gb of memory.

OR

Run Solaris 10 on all E12/15K Domains AND run Solaris 9 with System Management Services (SMS) 1.6 on the System Controllers (SC) only. In this configuration, no system controller upgrades are needed.

Please see the Relief/Workaround section above for the final resolution to this issue.

• Republished

• Updated Relief/Workaround section.

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