odd behaviour of app writes to mirrored volumes


 
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Operating Systems Solaris odd behaviour of app writes to mirrored volumes
# 1  
Old 10-29-2009
odd behaviour of app writes to mirrored volumes

Hi,
Normally, I setup my volumes under Solaris (doesnt matter, 8 or 10),
as vxassist -g dg01 -U gen make vol01 500m dg0101, then I do a mirror
vxassist -g dg01 mirror vol01 dg0102.

Which is legal and does work, however, when the primary dg01 array (or simply in this case, the volume) disappears for some reason, the app does not seem to continue to write to the mirror and fails (this is oracle RAC) or if vol01 picks up a bad sector, the mirror write fails on the other side (dg0102).
The arrays are on San switches and are multipathed. Is my mirroring wrong?
# 2  
Old 10-29-2009
post the output of "vxprint -ht" and lets see if all is ok...
# 3  
Old 10-29-2009
Code:
v  vol20        -            ENABLED  ACTIVE   411648   SELECT    -        fsgen
pl vol20-01     vol20        ENABLED  ACTIVE   411648   CONCAT    -        RW
sd dg0101-24    vol20-01     dg0101   72130560 411648   0         SUN35101_0 ENA
pl vol20-02     vol20        ENABLED  ACTIVE   411648   CONCAT    -        RW
sd dg0102-59    vol20-02     dg0102   218931200 411648  0         SUN35100_1 ENA


Last edited by DukeNuke2; 10-29-2009 at 04:58 PM.. Reason: code tags!
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