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тАО01-07-2008 12:42 PM
тАО01-07-2008 12:42 PM
Upgrade Version 3 VxFS to Version 4 VxFS
I have looked at the both the commands "vxupgrade" and "vxfsconvert". It looks like I will need to use "vxupgrade" since the file system is already VxFS.
I had never done an VxFS upgrade and I have concerns/questions to avoid corrupting the file system(s).
1) Do I have to unmount the file system?
2) I am assuming I will need to back up the file systems.
3) What special preparations do I need to do before running the "vxupgrade"?
4) What extra space do I need to do the upgrade?
5) What typical problems have people experienced with running "vxupgrade"?
6) How long will the upgrade take?
7) Are there any lessons learned from doing an upgrade like this?
8) Can I do multiple upgrades at the same time?
I do not mean to be too specific, I am just trying to be cautious.
I appreciate any advice that is given.
Ray Terrell
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тАО01-07-2008 12:56 PM
тАО01-07-2008 12:56 PM
Re: Upgrade Version 3 VxFS to Version 4 VxFS
Follow below links and you will get answers to most of your questions and I would create a full backup and Ignite backup before starting the upgrade.
http://www.symantec.com/business/support/knowledge_base_results.jsp?content=all&SearchTerm=vxupgrade&search=Search+Now
Title: HP-UX 11i Operating Environment - Space and Time Requirements for vxupgrade
Document ID: emr_na-c01043152-1
http://www12.itrc.hp.com/service/cki/docDisplay.do?docLocale=en&docId=emr_na-c01043152-1
Regards,
Robert-Jan
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тАО01-07-2008 01:01 PM
тАО01-07-2008 01:01 PM
Re: Upgrade Version 3 VxFS to Version 4 VxFS
The operation takes just a few seconds. The answers to most of your questions can be found in the manpages:
http://docs.hp.com/en/B3921-60631/vxupgrade.1M.html
I would upgrade to the highest layout version possible for your VxFS version (3.5, 4.1) that will allow you to mount your filesystems on any server you have.
As with any filesystem maintenance, having a backup is never a bad thing, although I have not heard of failures with 'vxupgrade'.
Regards!
...JRF...
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тАО01-08-2008 11:43 AM
тАО01-08-2008 11:43 AM
Re: Upgrade Version 3 VxFS to Version 4 VxFS
1) Can I run the "vxupgrade" command without having to do an unmount or something speical. It seems like all I needed to do was stop any application using the file system and them run the "vxupgrade" command. Then restart the application.
2) I read that no one really had anything problems upgrading from ver 3 VxFS to ver 4.
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тАО01-08-2008 11:53 AM
тАО01-08-2008 11:53 AM
Re: Upgrade Version 3 VxFS to Version 4 VxFS
From the man page provided by JRF:
"vxupgrade prints the current disk layout version number for a VxFS file system or upgrades the file system to a new disk layout. vxupgrade operates on file systems MOUNTED for read/write access: mount_point must be a MOUNTED VxFS file system. Only a privileged user can query or upgrade a VxFS file system."
Pete
Pete
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тАО01-08-2008 01:31 PM
тАО01-08-2008 01:31 PM
Re: Upgrade Version 3 VxFS to Version 4 VxFS
Only caveat - if you mount the file systems on another server (IE a backup server) - then make sure that server is at the same rev or higher.
Version 4? 11.23 now supports version 6 :)
Rgds...Geoff