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тАО05-30-2010 06:15 AM
тАО05-30-2010 06:15 AM
system requires to boot more fastly
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тАО05-30-2010 07:03 AM
тАО05-30-2010 07:03 AM
Re: system requires to boot more fastly
2. Faster or less software.
How fast is it now? How fast would be fast
enough?
With exactly no information about what you're
doing, and why, it's hard to make specific
suggestions. With a question this vague, did
you really expect much useful information?
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тАО05-30-2010 10:30 AM
тАО05-30-2010 10:30 AM
Re: system requires to boot more fastly
Are you patching? Is the system crashing?
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тАО05-30-2010 11:42 AM
тАО05-30-2010 11:42 AM
Re: system requires to boot more fastly
/sbin/rc.utils
Around line 610-620, there is a line that looks like this:
echo "----------------------------" >> $LOGFILE
Change this line to:
echo "---------------------------- $(date)" >> $LOGFILE
Then modify the second command around line 740, just like the previous line. From now, the startup and shutdown steps will be logged with a timestamp in /etc/rc.log.
Then reboot and look at the file: /etc/rc.log. You'll see the start time for each step. Look for a long delay between two steps.
What is the time for your current system? If it is 1 minute or less, then you can't improve on that very much at all. If it is 30 mins or more, you have some application that is taking far too much time to start and needs to be fixed. If the delay is in NFS steps, turn off NFS in the /etc/rc.config.d scripts. NFS is notroius for long delays when it isn't used or a remote NFS server is not working.
Bill Hassell, sysadmin
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тАО05-30-2010 10:10 PM
тАО05-30-2010 10:10 PM
Re: system requires to boot more fastly
Which boot time do you have in mind:
a) Hardware checks;
b) Real boot process.
The latter one is easy to check.
In fact, one of the tests in my Perl scripts
covers it:
BEGIN CHECKING BOOT PROCESS TIMINGS 01-03-2010-14:39:45
_______________________________________________________
AUDIT-INFO: Boot timings as recorded in current /etc/rc.log
HP-UX Start-up in progress
Mon Mar 1 13:00:42 EDT 2010
HP-UX run-level transition completed
Mon Mar 1 13:09:10 EDT 2010
This was on a server rx2660. You can see
these lines in /etc/rc.log. As well,
you can add measurements in each RC
start-up script (as others already pointed
it out).
If you want to speed up hardware checks,
then use HP-UX 11.31 and check Fastboot
options for example:
http://docs.hp.com/en/5991-1247B_ed2/ch05s25.html
Regards,
VK2COT
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тАО06-02-2010 09:00 AM
тАО06-02-2010 09:00 AM
Re: system requires to boot more fastly
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тАО06-02-2010 09:14 AM
тАО06-02-2010 09:14 AM
Re: system requires to boot more fastly
But this can cause a problem later, if there is a not detected problem with the hardware.
I would not do this.
Most servers have an uptime of several weeks, months or whatever, so boot time is rarely an issue.
However, it's faster than years ago - remember the old k-classes with a boot time of 40 minutes ...
Hope this helps!
Regards
Torsten.
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тАО06-02-2010 09:16 AM
тАО06-02-2010 09:16 AM
Re: system requires to boot more fastly
> Actually my question is that i am 100% sure that my all the hardware , lvm everything working fine. and I just want to skip all these checkings while booting ...is it possible... can any body help..?
Re-read VK2COT's comments above. I don't think you paid sufficient attention to his pointers to FASTBOOT. You can disable various hardware tests if you insist.
Of course, as usual, knowing *exactly* what hardware and/or release you are running would lead to a more detailed answer.
Regards!
...JRF...
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тАО06-02-2010 11:05 AM
тАО06-02-2010 11:05 AM
Re: system requires to boot more fastly
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тАО06-02-2010 11:21 AM
тАО06-02-2010 11:21 AM
Re: system requires to boot more fastly
To add to Torsten's comment advising against doing this, I would agree *unless* you are doing a series of reboots for software updates. Then, you might temporarily defeat some of the hardware self-tests to shorten your overall downtime.
Regards!
...JRF...