Re: LVM help -- resize filesystem ?

[Jay Zach <jayzach@verizon.net>]

Jay Zach wrote:
> Hi all, hopefully someone can help me, I think I'm stuck.  I want to 
> replace one of my drives, a 4gb in my physical volume with an 18gb 
> drive.  I have no more free drive slots, so I need to reduce it out of 
> the set first.  I've created plenty of room across the volume to do it. 
> I'm just having problems finding what I need to do now-- I think I need 
> to resize my filesystem, but not sure, and if so, not sure how.  After 
> that I think I can doa lvreduce and pvmove, or something along those lines.
>
> Here is my pvscan -- sdb1 is the one I'd like to replace:
>
> BBM:~# pvscan
>   PV /dev/sdb1   VG Vol1   lvm2 [4.23 GB / 0    free]
>   PV /dev/sdc1   VG Vol1   lvm2 [8.47 GB / 0    free]
>   PV /dev/sdd1   VG Vol1   lvm2 [8.47 GB / 0    free]
>   PV /dev/sde1   VG Vol1   lvm2 [8.47 GB / 0    free]
>   PV /dev/sdf1   VG Vol1   lvm2 [8.47 GB / 0    free]
>   Total: 5 [38.11 GB] / in use: 5 [38.11 GB] / in no VG: 0 [0   ]
>
>
>
>
> Any help would be GREATLY appreciated, thanks :)

N/M.  I guess I just needed to post for help to get myself motivated. :)

I finally found the few pieces of the puzzle I was missing.

Here's what I did for reference:

BBM:/home/jzach# e2fsck -f /dev/Vol1/shared
BBM:/home/jzach# resize2fs -p /dev/Vol1/shared 25G
BBM:~# lvreduce -L -5G /dev/Vol1/shared
BBM:~# pvmove /dev/sdb1
  mirror: Required device-mapper target(s) not detected in your kernel

BBM:~# modprobe dm-mirror
BBM:~# pvmove /dev/sdb1
vgreduce Vol1 /dev/sdb1
--
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Saturday Aug 20, 2005

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