Parameters

[Griselda Sanchez]

Is there a manual, where I can find all the parameters that can be configurable on HPUX?

[John Poff]

Hi,

If you are asking about kernel parameters, take a look at this link:

http://docs.hp.com/hpux/onlinedocs/939/KCParms/KCparams.OverviewAll.html

JP

[A. Clay Stephenson]

One easy way is sam->Kernel Configuration->Configurable Parameters ->Help -> Print -> Entire Volume

You can also use the F1 key to bring up context sensitive help on each of the tunables in Sam.

[Mel Burslan]

please keep in mind that, more software you install, the number of these tunables may change.

[Griselda Sanchez]

I need to know if there are another parameters not only the Kernel parameters, and where can I find them

[John Poff]

All the parameters, for everything? That's a tall order.

Maybe if you could tell us what problem you are trying to solve, we could help point you in a specific direction.

JP

[Griselda Sanchez]

There isn't problem, the question is because the DBA administrator ask me for some values that I don't know, and yesterday he ask me for some (and they aren't Unix parameters) and today again is asking for another like TCP_TTL, TCPTV_PERSMIN, TCPTV_MAX,TCP_LINGERTIME.

[Mel Burslan]

There is a book by Marty Poniatowski called hp HP-UX 11i Systems Administration Handbook and Toolkit as well as anothe one by Rafeeq Ur Rehman named HP Certified: HP-UX System Administration.

Both these books go into the OS detail of hpux deeper than any other books that I know and they most probably have the information you need along with much more information on HP-UX.

But my advice is, if you are not familiar with HP-UX administration, I strongly recommend to attend a classroom training at HP even if you were some sort of other OS systems administrator before.

Even if you have a list of all the parameters that you can configure, I wonder what you can do with it, without knowing changing which one affects your system in which way. Trial and error is not the best way to learn tuning unix.

Hope this helps.

[A. Clay Stephenson · Accepted solution]

Those parameters are network related and if applicable can be found using ndd -h sup | pg and ndd -h unsup | pg to list supported and unsupported network tunables. You will be far better off to look for the Installation Guide for your Database/OS and follow its suggestions for kernel/network settings.

[Griselda Sanchez]

I'm not and expert in Unix administration, but that is why I ask all the time when I don't know about something and never change something without approve from someone who know.
Thanks for the advice and your help.

[A. Clay Stephenson]

I will offer you this bit of advice (and it's up to you to heed ot ignore it: Unless your Database Admin. knows a lot about both his database and UNIX, follow his advice with great caution. If this is Oracle, the Installation Guide for HP-UX will give you a list of needed patches and suggested tunables settings. These will get you close and will certainly result in a workable system.

In the real world, far more than kernel and network tuning the efficiency of the underlying SQL code is at least a factor of 10 more significant.