I would think another option might be:<br><br>If you have enough free PE's:<br>- Create a new LV with the config you want.<br>- Copy/move the data from the old LV into it.<br>- Remove the old LV.<br><br>If you don't have free PE's, but have alternate space elsewhere:<br>
- Backup/copy all data from the LV to a safe location.<br>- Remove the LV.<br>- Create a new LV with the config you want.<br>- Copy the data back into it (after the mount).<br><br>I'm pretty sure you already thought of that since this is pretty simple and straight forward, so I must be missing something.<br>
<br clear="all">-- Asher <br>
<br><br><div class="gmail_quote">On Fri, Sep 25, 2009 at 8:19 PM, Brian Pitts <span dir="ltr"><<a href="mailto:brian@polibyte.com">brian@polibyte.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div class="im">On 09/25/2009 05:25 PM, Brandon Colbert wrote:<br>
<br>
><br>
> My other question is how do I completely wipe all LVM configuration?<br>
><br>
<br>
</div>Take a look at<br>
<br>
<a href="https://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5.4/html/Logical_Volume_Manager_Administration/LVM_components.html" target="_blank">https://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5.4/html/Logical_Volume_Manager_Administration/LVM_components.html</a><br>
<br>
"The underlying physical storage unit of an LVM logical volume is a<br>
block device such as a partition or whole disk. To use the device for an<br>
LVM logical volume the device must be initialized as a physical volume<br>
(PV). Initializing a block device as a physical volume places a label<br>
near the start of the device.<br>
<br>
By default, the LVM label is placed in the second 512-byte sector. You<br>
can overwrite this default by placing the label on any of the first 4<br>
sectors. This allows LVM volumes to co-exist with other users of these<br>
sectors, if necessary.<br>
<br>
An LVM label provides correct identification and device ordering for a<br>
physical device, since devices can come up in any order when the system<br>
is booted. An LVM label remains persistent across reboots and throughout<br>
a cluster.<br>
<br>
The LVM label identifies the device as an LVM physical volume. It<br>
contains a random unique identifier (the UUID) for the physical volume.<br>
It also stores the size of the block device in bytes, and it records<br>
where the LVM metadata will be stored on the device.<br>
<br>
The LVM metadata contains the configuration details of the LVM volume<br>
groups on your system. By default, an identical copy of the metadata is<br>
maintained in every metadata area in every physical volume within the<br>
volume group. LVM metadata is small and stored as ASCII.<br>
<br>
Currently LVM allows you to store 0, 1 or 2 identical copies of its<br>
metadata on each physical volume. The default is 1 copy. Once you<br>
configure the number of metadata copies on the physical volume, you<br>
cannot change that number at a later time. The first copy is stored at<br>
the start of the device, shortly after the label. If there is a second<br>
copy, it is placed at the end of the device. If you accidentally<br>
overwrite the area at the beginning of your disk by writing to a<br>
different disk than you intend, a second copy of the metadata at the end<br>
of the device will allow you to recover the metadata."<br>
<br>
--<br>
All the best,<br>
<font color="#888888">Brian Pitts<br>
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