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Old 09-20-2007, 11:28 AM   #1
Registered: Sep 2003
Location: Laurel MD
Posts: 296

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LVM which physical device


I'm sure this is an easy question. How do I determine what physical device is connected to a volume or group?

I installed RH AS4 and it created volumes so that a df -h looks like
/dev/mapper/VolGroup_ID_21728-LogVol4 /usr
I want to know what /dev/sd? is connected to the above, how do I find this out. I tried an lvdisplay and a vgdisplay to no effect.

I have been reading documentation on the web that describes how to create and modify but not simply show the info I need.

If I do a "lvdisplay -v dev/mapper/VolGroup_ID_21728-LogVol4"
I get the error volume group mapper not found.

Thank you
Old 09-20-2007, 12:18 PM   #2
Registered: Jun 2007
Location: Munich, Germany
Distribution: RHEL, CentOS, Fedora, SLES (...)
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# pvdisplay
Old 09-20-2007, 01:18 PM   #3
Registered: Sep 2003
Location: Laurel MD
Posts: 296

Original Poster
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Thanks, that worked


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