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тАО10-17-2007 10:08 PM
тАО10-17-2007 10:08 PM
Forcing LVM (RH4-ES) to see a BIGGER LUN Size
Here's my issue.
I have a Volume group which consists of one 100G LUN via a NetAPP SAN Filer. I also have a logical volume of 50g via this volume Group mounted with live data.
I want to be able to resize the 100G LUN to 120G on the SAN Filer and then force LVM to see the extra 20G without having to umount the volume and mess about exporting data and rebuilding the Volume .......
Is there a way of shaking-up LVM to see the extra 20G (extents)? I would use Snapdrive (NetAPP software) but each snapdrive requires a licence and it would be nice to do this when required with my VMware RedHat Servers.
any LVM GURU's out there that know a trick or too with LVM2?
Regards
Nigel
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тАО10-17-2007 10:12 PM
тАО10-17-2007 10:12 PM
Re: Forcing LVM (RH4-ES) to see a BIGGER LUN Size
You can use the '-t' flag to "test" prior to doing any action.
Once resized, you should then be able to reize your volume groups.
At worst, after extending the LUN, you may need to 'partprobe'.
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тАО10-18-2007 12:48 AM
тАО10-18-2007 12:48 AM
Re: Forcing LVM (RH4-ES) to see a BIGGER LUN Size
See also the attached file.
And please, check your profile:
http://forums1.itrc.hp.com/service/forums/publicProfile.do?userId=BR969872&forumId=1
You haven't assigned points to the answers you get, this is a good way to thank for the help, and maintain the people happy!
If you are not sure how to assign points, please see:
http://forums1.itrc.hp.com/service/forums/helptips.do?#28
Have a nice day.
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тАО10-18-2007 01:42 AM
тАО10-18-2007 01:42 AM
Re: Forcing LVM (RH4-ES) to see a BIGGER LUN Size
Forcing software to do anything usually results in bad outcomes.
I would suggest re-creating the volume group with bigger extents -s or less physical volumes -p 10 in order to get the results you desire.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
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Founder http://newdatacloud.com
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тАО10-18-2007 02:20 AM
тАО10-18-2007 02:20 AM
Re: Forcing LVM (RH4-ES) to see a BIGGER LUN Size
God knows what snapdrive is doing to LVM? It must plugin to LVM and get it to do things it's not surposed to do???
Never mind.
Doe's anyone else on this forum use NetApp Storage with Snapdrive for UNIX/LINUX?
R.
Nigel