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{bb} bb-memory.sh and oracle databases using DISM on Solaris



Guys,
 
Has anyone got this kind of setup. On Solaris when DISM (Dynamic Intimate Shared Memory) is used Solaris allocates memory for the SGA and then removes that memory from the available swap. You would have thought that it might show up somewhere but it doesn't. This gives the bb-memory.sh script some issues in that instead of swap -s reporting what you'd expect the available swap is reduced by the size of the SGA.
 
An Example
 
Memory 48G
Swap 4G
SGA 16G
 
You would expect that swap -s  should show that used + available = roughly 52G give or take but in my example it's closer to 32G.
 
This skews the stats and suggests that there is a shortage of swap space when there isn't.
 
Anyone come across this or have a different monitor that takes DISM into consideration ?
 
Cheers
 

Dave Murphy

Unix Systems Administrator

TSG Unix Team

'

È

02075 428627
 
07710 400301



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