swap shrinking... fast!

Hello list, 

On an M5000, Solaris 10, applied latest CPU last Saturday, for some reason 
swap is shrinking!

[kopernik]/tmp$ df -h /tmp
Filesystem             size   used  avail capacity  Mounted on
swap                    33G   152M    33G     1%    /tmp
[kopernik]/tmp$
[kopernik]/tmp$
[kopernik]/tmp$
[kopernik]/tmp$ df -h /tmp
Filesystem             size   used  avail capacity  Mounted on
swap                    33G   152M    33G     1%    /tmp
[kopernik]


[kopernik]/tmp$
[kopernik]/tmp$ df -h /tmp
Filesystem             size   used  avail capacity  Mounted on
swap                    29G   152M    29G     1%    /tmp
[kopernik]/tmp$

[kopernik]/tmp$ swap -l
swapfile             dev  swaplo blocks   free
/dev/md/dsk/d1      85,1      16 256007792 70524400
[kopernik]/tmp$

[kopernik]/tmp$ metastat d1
d1: Mirror
    Submirror 0: d11
      State: Okay
    Submirror 1: d21
      State: Okay
    Pass: 1
    Read option: roundrobin (default)
    Write option: parallel (default)
    Size: 256007808 blocks (122 GB)

d11: Submirror of d1
    State: Okay
    Size: 256007808 blocks (122 GB)
    Stripe 0:
        Device     Start Block  Dbase        State Reloc Hot Spare
        c0t0d0s1          0     No            Okay   Yes


d21: Submirror of d1
    State: Okay
    Size: 256007808 blocks (122 GB)
    Stripe 0:
        Device     Start Block  Dbase        State Reloc Hot Spare
        c1t0d0s1          0     No            Okay   Yes


Device Relocation Information:
Device   Reloc  Device ID
c0t0d0   Yes    id1,sd@n5000c5000922b5f7
c1t0d0   Yes    id1,sd@n5000c500092348b7
[kopernik]/tmp$ 


Any idea why this is happening and how to fix this?

Thanks in advance

Loris

 
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