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- Newsgroups: comp.os.vms
- Path: sparky!uunet!stanford.edu!kronos.arc.nasa.gov!butch!iscnvx!news
- From: marshall@NEBULA.SSD.LMSC.LOCKHEED.COM (Bob Marshall)
- Subject: Re: Question of SYSGEN.....
- Message-ID: <1993Jan2.193045.27982@iscnvx.lmsc.lockheed.com>
- Sender: news@iscnvx.lmsc.lockheed.com (News)
- Reply-To: marshall@NEBULA.SSD.LMSC.LOCKHEED.COM
- Organization: LMSC, Sunnyvale, California
- References: <9FDCDBC6045F0001B5@EGFRCUVX>
- Date: Sat, 2 Jan 93 19:30:45 GMT
- Lines: 51
-
- In article <9FDCDBC6045F0001B5@EGFRCUVX>, SABRY@SHEBIN.EG (Sabry Kotob El-Ganzory) writes:
- >Please, Question of SYSGEN and to you SYSGEN>show/all
- >Parameters in use: Active
- >Parameter Name Current Default Minimum Maximum Unit Dynamic
- >-------------- ------- ------- ------- ------- ---- -------
- >PFCDEFAULT 16 32 0 127 Pages D
- >KFILSTCNT 16 4 2 255 Slots
-
- [...remainder of entire listing of SYSGEN parameter settings deleted...]
-
- Sabry,
- The general rule of thumb here is "if it ain't broke, don't fix it". You
- have not given us any indication in your post about why you want to tinker
- with your SYSGEN settings. If you were experiencing a specific problem
- on your system, an appropriate question might be "When I try to INSTALL
- an image, I get the message 'global page table full'. Which SYSGEN
- parameter do I need to change?". Then we could help you.
-
- Another rule of thumb is that if you don't fully understand exactly what
- a particular SYSGEN parameter does, don't change it. You can easily render
- your system unbootable by playing with SYSGEN parameters when you don't
- have a firm grasp as to their function. Therefore, I recommend that you
- don't tinker with SYSGEN unless you have some specific problem you are
- trying to correct. I also recommend that you read up on the use of
- AUTOGEN and use it to tune your system; with your limited VMS experience
- I'm sure that AUTOGEN will do a much better job of tuning your system
- than you would be able to do yourself. It will also protect you from
- yourself.
-
- >Pardon me If I'm asking a silly questions.......ok.
-
- The problem is that you haven't even asked a question. It's impossible to
- look at a listing of SYSGEN parameters, without any additional information
- about the system's workload, and make any recommendations. Ask us a specific
- question, or at least tell us why you want to tinker with SYSGEN, and
- maybe we can help you.
-
- I did take the time to glance at some of your key parameters. The only
- thing that looked suspicious to me was that MAXPROCESSCNT and BALSETCNT
- seemed to be very low for most systems. But without knowing anything at
- all about your worload, it's impossible to tell. These are two parameters
- that AUTOGEN will maintain for you, though, so I repeat my recommendation
- that you depend on AUTOGEN.
-
- =============================================================================
- Bob Marshall \\ "Women aren't as smart as they
- Lockheed Missiles & Space Co. \\ think they are; they think we
- Sunnyvale, CA \\ men know a lot more than we
- marshall@force.ssd.lmsc.lockheed.com\\ really do."
- "I tell the truth 'cept when I lie" \\ - Tim the Toolman
- =============================================================================
-