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Re: [linux-lvm] Removal of PV



Thanks, thought no one was going to reply. :)

I'll back up more critical data and try this weekend.

From: Patrick Caulfield <caulfield sistina com>
Reply-To: linux-lvm sistina com
To: linux-lvm sistina com
Subject: Re: [linux-lvm] Removal of PV
Date: Fri, 20 Apr 2001 11:29:23 +0100

On Mon, Apr 16, 2001 at 02:50:07PM -0700, hail narcissus wrote:
>
> I know this has been asked before and I browsed the archives for the info.
> But I want to be sure since I am dealing with 500+GB of data.
>
> Here is my configuration:
> hda-h (80Gig IDE's)
> sda-n (9Gig SCSI's)
> 652.81 GB VG
> 505GB Used 140GB Free
>
> I want to remove the SCSI drives since I am having some SCSI bus problems
> and they are just old and I am not feeling comfortable with it's
> reliability.
>
> I believe this would be the proper steps:
>
> resize2fs /dev/lv/vg 520G <-- Is 520G correct, particularly the G.
> pvmove /dev/sda /dev/hdh <-- Assuming /dev/hdh has free space
> pvmove /dev/sdb /dev/hdh
> pvmove /dev/sdc /dev/hdh
> ...
> lvreduce -L 520G /dev/lv/vg
> vgreduce vg /dev/sda
> vgreduce vg /dev/sdb
> vgreduce vg /dev/sdc
>
> I saw in the mailing list where someone suggested:
>
> ext2resize/resize2fs
> lvreduce
> pvmove
> vgreduce
>
> But I would think you would want to do pvmove before the lvreduce.
> Otherwise you might truncate data?


Either way round should be fine. If you're using <beta7 then, due to bugs, you
should take the volume offline before moving it though.


patrick

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