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тАО09-05-2007 11:21 PM
тАО09-05-2007 11:21 PM
I have to reboot a server. Can you tell me what actions i need to perform prior to server reboot (e.g o/p of bdf,/etc/fstab). Also, what i need to check post reboot? Thanks in advance.
Solved! Go to Solution.
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тАО09-05-2007 11:40 PM
тАО09-05-2007 11:40 PM
Re: Activities to be performed prior/post to HP-UX server reboot
If there are running any databases, you have to shutdown them before.
Regards
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тАО09-05-2007 11:41 PM
тАО09-05-2007 11:41 PM
Re: Activities to be performed prior/post to HP-UX server reboot
Also run nickel script to take backup of system configuration. you can download this from here.
http://h20331.www2.hp.com/Hpsub/cache/286022-0-0-225-121.html
Also visit the thread.
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=586953&admit=-682735245+1189078566618+28353475
After reboot you need to verify server's network availability as well as applications and database availabilty.
Regards,
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тАО09-05-2007 11:42 PM
тАО09-05-2007 11:42 PM
SolutionAlso, reboot with the "shutdown -r" command, not with reboot.
After rebooting, it is allways wise to check /etc/rc.log (or follow the output on the console) to check that there were nor errors or failures.
Also, check if your 3rd party software is succesfully started.
If your system has all the correct system shutdown and starup scripts, you can just "shutdown -r" and be quite certain it will come up fully functional again without worrying.
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тАО09-05-2007 11:53 PM
тАО09-05-2007 11:53 PM
Re: Activities to be performed prior/post to HP-UX server reboot
You must connect a logging device to the real console -- a PC running a smart terminal emulator (not hyperterminal) or similar. This will allow capturing all activities including hardware selftests. Once rebooted, review all the console messages and look at the new /etc/rc.log and /etc/rc.log.old files.
Naturally, you should check the operation of your applications. A good sysadmin plan is to have a standard set of tests designed for the applications to make sure all resources are working. Note that many changes may have been made while the system was running but the root user never added these changes to the shutdown and startup code.
Bill Hassell, sysadmin
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тАО09-05-2007 11:56 PM
тАО09-05-2007 11:56 PM
Re: Activities to be performed prior/post to HP-UX server reboot
lvlnboot -v
efi_ls /dev/dsk/
There are probably some more commands like this to check some initial boot capability of your system. As soon as your system is able to load the kernel, you are able to boot to single-user mode and further fix your system configuration if necessary.
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тАО09-06-2007 12:00 AM
тАО09-06-2007 12:00 AM
Re: Activities to be performed prior/post to HP-UX server reboot
If your system is running fine, nothing much is needed to be done before reboot, only when you aren't familiar about the server better you can take a snippet of bdf (especially for nfs fs), also look out for any 3rd party application like SAP, Oracle etc. and shut them down properly.
Post Reboot - You can again check the bdf and check the syslog.log and dmesg for any errors.
Else i suppose evrything should go fine.
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тАО09-06-2007 12:09 AM
тАО09-06-2007 12:09 AM
Re: Activities to be performed prior/post to HP-UX server reboot
If you are really not sure, then best is to take an output of cfg2html (chk out cfg2html man page) befor and chk the difference between the prior and post.
You can best find out the difference there..
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тАО09-06-2007 12:14 AM
тАО09-06-2007 12:14 AM
Re: Activities to be performed prior/post to HP-UX server reboot
And also, you can use the following command:
# echo "map selall info;wait infolog" | cstm > /tmp/cstm.txt
then by viewing cstm.txt, u will get all the info abt the system h/w.
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тАО09-06-2007 12:27 AM
тАО09-06-2007 12:27 AM
Re: Activities to be performed prior/post to HP-UX server reboot
I have taken the output of print_manifest. However, cfg2html does not work.