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Operating Systems HP-UX vmstat, comments and advices needed Post 302260941 by vbe on Saturday 22nd of November 2008 09:08:04 AM
Old 11-22-2008
About /etc/fstab, there are mount option which say how the FS are tuned (tmplog,nolog delaylog etc...)
You have here some optimization that could be done but for that we would need to know the type/caracteristics of the disk-subsystem (like hardware RAID5 /cache centric...) or you may generate other issues...
So until you find out this we will put aside...

SWAP
A system will see his performance drop if it needs to swap (your case...) and is using disk swap space..
creating more swap of same size on other devices will balance I/O load...

The system buffers its read/write, oracle also, and worst maybe your subsystem also...
That means that before a modification, or read is done oracle will look in its buffer, then the system, at at last the sub-system, now I have noticed that better can be enemy of good, e.g. to much buffer in oracle will slow the system because of time parsing, compared to go and get the data...
If you know your subsystem has cache then reduce the amount of system buffers

Kernel params:
bufpages 0
dbc_max_pct 8
dbc_min_pct 5
swapmem_on 0

I cant find your values of maxusers... how many concurrent users?
I there a good reason for maxuprc 3686? (like: We all connect using oracle account...) It a heck alot for one user and can cost you as much if you fall on bad written code (infinite loops etc...) on big systems here with OA running (and because of java ) we set it at 1000 then I monitor to see if more is really needed and in most cases, not...

I would reduce of 200000 your redo and data buffers

Can you give this a try and lets see what happens?
(and look what you have in /etc/fstab, and what disks you are attached to...)

Good luck

Last edited by vbe; 11-22-2008 at 10:40 AM..
 

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zipnote(1)						      General Commands Manual							zipnote(1)

NAME
zipnote - write the comments in zipfile to stdout, edit comments and rename files in zipfile SYNOPSIS
zipnote [-w] [-b path] [-h] [-v] [-L] zipfile ARGUMENTS
zipfile Zipfile to read comments from or edit. OPTIONS
-w Write comments to a zipfile from stdin (see below). -b path Use path for the temporary zip file. -h Show a short help. -v Show version information. -L Show software license. DESCRIPTION
zipnote writes the comments in a zipfile to stdout. This is the default mode. A second mode allows updating the comments in a zipfile as well as allows changing the names of the files in the zipfile. These modes are described below. EXAMPLES
To write all comments in a zipfile to stdout use for example zipnote foo.zip > foo.tmp This writes all comments in the zipfile foo.zip to the file foo.tmp in a specific format. If desired, this file can then be edited to change the comments and then used to update the zipfile. zipnote -w foo.zip < foo.tmp The names of the files in the zipfile can also be changed in this way. This is done by following lines like "@ name" in the created temporary file (called foo.tmp here) with lines like "@=newname" and then using the -w option as above. BUGS
The temporary file format is rather specific and zipnote is rather picky about it. It should be easier to change file names in a script. Does not yet support large (> 2 GB) or split archives. SEE ALSO
zip(1), unzip(1) AUTHOR
Info-ZIP v3.0 of 8 May 2008 zipnote(1)
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