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Re: PAGING on Sun Solaris 2.6 with Oracle 7.3.4

From: FishinJT <fishinjt_at_aol.com>
Date: 16 Apr 1999 22:47:31 GMT
Message-ID: <19990416184731.11453.00002677@ng-ch1.aol.com>


>Anyone out there that has experienced extremely high paging activities
>un their Sun box (E6500)?

Are you using filesystems? If you are then that is the likely cause of you paging problem. Solaris is buffering you file systems causing you to see large amounts of paging. I would elminate this on you file systems containing your data files. (Why have Solaris buffer your data when Oracle is already going to buffer it??) If you are using just plain UFS filesystem you can set the mount option "forcedirectio". (see man page on mount_ufs). If you are running VXFS you will need to use "mincache=direct,convosync=direct". This should fix your paging problem.

HTH,
john



John Stachlewicz
Sys Admin
fishinjt_at_aol.com
Received on Fri Apr 16 1999 - 17:47:31 CDT

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