zfs discuss - Aug 2008 - ZFS Memory Usage - System out of Memory

Hello,

 

ZFS is working great for us, but we have seen it use all or most of the
memory on our systems.    Is there a recommended setting to put in
/etc/system to limit the amount of RAM to cache?   Or is it recommended
to just leave it alone, and let it release the memory as needed.  Most
of our system are now running Solaris 10 5/08.

 

Thanks for any comments.

 



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Poulos, Joe wrote:
>
> Hello,
>
>  
>
> ZFS is working great for us, but we have seen it use all or most of 
> the memory on our systems.    Is there a recommended setting to put in 
> /etc/system to limit the amount of RAM to cache?   Or is it 
> recommended to just leave it alone, and let it release the memory as 
> needed.  Most of our system are now running Solaris 10 5/08.
>
We have collected some thoughts on this subject and created a section
in the ZFS Best Practices Guide:
http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide#Memory_and_Dynamic_Reconfiguration_Recommendations
 -- richard