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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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