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тАО08-16-2006 08:19 AM
тАО08-16-2006 08:19 AM
What could this be or cause this? Any ideas?
This machine is a :
a VAX 7000-620
Multiprocessing is ENABLED. Streamlined synchronization image loaded.
PRIMARY CPU = 00
Active CPUs: 00 01
Configured CPUs: 00 01
Solved! Go to Solution.
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тАО08-16-2006 08:26 AM
тАО08-16-2006 08:26 AM
Solutionmanual:
http://h71000.www7.hp.com/doc/73final/6491/6491pro.html
In general, start at:
http://h71000.www7.hp.com/doc/index.html
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тАО08-16-2006 08:46 AM
тАО08-16-2006 08:46 AM
Re: System
In my nearly 30 years of managing OpenVMS systems, I have seen innumerable situations where the symptom is initially described as "system is slow". The underlying causes of the behavior are, for all intents and purposes, as numerous as the performance incidents themselves.
Without a large amount of additional information, we are really "shooting in the dark" here. Steven's suggestion of starting with the Performance manual is a good one.
If the causes of the performance problem are not clear, it may be a good time to establish a relationship with someone with experience in performance and other aspects of system management (Obligatory disclosure of commercial interest: Yes, this is one of the services that is part of my consulting practice).
Alternatively, we are going to spend a lot of time on ITRC trying to randomly guess what MIGHT be wrong with the system (This is a bit along the lines of searching for a needle in the haystack).
As a starting point, does any performance data displayed by MONITOR correspond with the observed delays?
- Bob Gezelter, http://www.rlgsc.com
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тАО08-16-2006 07:25 PM
тАО08-16-2006 07:25 PM
Re: System
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тАО08-17-2006 05:14 AM
тАО08-17-2006 05:14 AM
Re: System
I am thinking like the old Polycenter data collector. I don't know if T4 is build around a VAX.
If you don't, then have you had an active window during the slowdown?
Set your priority to something like 6 (i.e. set proc/prio=6).
Then do a mon sys or mon proc/topc.
Look also for high memory/page swapping.
Is this problem occuring at a specific time or day of the week? Do you have any batch jobs for that time? Do you have backups run during that time? Is there a network load during that time?
Lots more information will be needed to be captured to get assistance. In the mean time you can use these suggestions to start trying to find the problem.
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тАО08-18-2006 07:52 AM
тАО08-18-2006 07:52 AM
Re: System
It's sort of like saying, my car is slow, why?
Log a call and get the performance cookbook. It will provide a checklist of things to look through.
Thanks,
Bob C
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тАО08-21-2006 09:22 PM
тАО08-21-2006 09:22 PM
Re: System
There could be many reasons for your system being slow and users can not login anymore.
Check these things when the system is slow.
1. First
$ moni process/topcpu
will tell you who is using more CPU. Identify the process and try to slowdown the process priority.
$ set process/id="XXXXXXX" prio=???
2. Check for any hardware related issues like.. particularly disks can really slow down the system performance.
monitor disk usage.
$ moni disk
will tell you which disk is used more...
$ show dev "disk" /file
will tell open files by the process in that disk.
May be application uses same disk for many processes waiting for resources may be..
regards
Raj
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тАО09-07-2006 09:09 AM
тАО09-07-2006 09:09 AM
Re: System
Maybe another tip:
If the SWAPPER process consumes (relative) a (lot) of CPU , you might have a virtual memory problem.
In that case you might issue:
$ show memory/files
If there are negative numbers in it, you might run out of vitual memory (not nessesarilly).
This might indicate that some application has a memory leak.
hth
grtz
Henk