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Old 02-12-2014, 02:41 PM   #1
Zapnologica
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Registered: Feb 2014
Posts: 1

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Help With LVM in Ubuntu


Good day all, I am new to this forum so I say hello.

I need some help with a little boo boo I made. I just installed a nice new fresh copy of Ubuntu Server, Installed Webmin and then started playing around trying to mount a 3tb drive to the system. Now I chose to install my setup and a LVM drive as I though it would give me allot of flexibility. But I seem to have messed it up now.

Basically I exended the root drive to all my free disk space. Here is my situation:

Code:
dylan@server:~$ sudo pvdisplay -m
[sudo] password for dylan:
  --- Physical volume ---
  PV Name               /dev/sda5
  VG Name               server-vg
  PV Size               232,65 GiB / not usable 1,81 MiB
  Allocatable           yes (but full)
  PE Size               4,00 MiB
  Total PE              59557
  Free PE               0
  Allocated PE          59557
  PV UUID               n43xj5-aexN-W9n7-SuE0-RIFe-p2dt-W9G1n9

  --- Physical Segments ---
  Physical extent 0 to 59076:
    Logical volume      /dev/server-vg/root
    Logical extents     0 to 59076
  Physical extent 59077 to 59555:
    Logical volume      /dev/server-vg/swap_1
    Logical extents     0 to 478
  Physical extent 59556 to 59556:
    Logical volume      /dev/server-vg/root
    Logical extents     59077 to 59077

  --- Physical volume ---
  PV Name               /dev/sdb2
  VG Name               server-vg
  PV Size               2,73 TiB / not usable 3,00 MiB
  Allocatable           NO
  PE Size               4,00 MiB
  Total PE              715364
  Free PE               0
  Allocated PE          715364
  PV UUID               90NDL3-LZCU-H7FH-Z1Dw-S7AW-tOxe-3Uv612

  --- Physical Segments ---
  Physical extent 0 to 715363:
    Logical volume      /dev/server-vg/root
    Logical extents     59078 to 774441

  --- Physical volume ---
  PV Name               /dev/sdb1
  VG Name               server-vg
  PV Size               127,81 MiB / not usable 3,81 MiB
  Allocatable           NO
  PE Size               4,00 MiB
  Total PE              31
  Free PE               0
  Allocated PE          31
  PV UUID               rMOQPq-1Smm-MkfI-9PGi-cME0-7KWD-feTzLX

  --- Physical Segments ---
  Physical extent 0 to 30:
    Logical volume      /dev/server-vg/root
    Logical extents     774442 to 774472
Here is my Logical Volumes:

Code:
dylan@server:~$ lvdisplay -m
  WARNING: Running as a non-root user. Functionality may be unavailable.
  No volume groups found
dylan@server:~$ sudo lvdisplay -m
  --- Logical volume ---
  LV Name                /dev/server-vg/root
  VG Name                server-vg
  LV UUID                W4tvZX-FohJ-Ufqc-2LcE-rsFd-ay8Q-KFMbzG
  LV Write Access        read/write
  LV Status              available
  # open                 1
  LV Size                2,95 TiB
  Current LE             774473
  Segments               4
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           252:0

  --- Segments ---
  Logical extent 0 to 59076:
    Type                linear
    Physical volume     /dev/sda5
    Physical extents    0 to 59076

  Logical extent 59077 to 59077:
    Type                linear
    Physical volume     /dev/sda5
    Physical extents    59556 to 59556

  Logical extent 59078 to 774441:
    Type                linear
    Physical volume     /dev/sdb2
    Physical extents    0 to 715363

  Logical extent 774442 to 774472:
    Type                linear
    Physical volume     /dev/sdb1
    Physical extents    0 to 30


  --- Logical volume ---
  LV Name                /dev/server-vg/swap_1
  VG Name                server-vg
  LV UUID                fdgcQU-ARVD-jp8h-tPFw-a3Bm-fi75-xeWbyD
  LV Write Access        read/write
  LV Status              available
  # open                 2
  LV Size                1,87 GiB
  Current LE             479
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           252:1

  --- Segments ---
  Logical extent 0 to 478:
    Type                linear
    Physical volume     /dev/sda5
    Physical extents    59077 to 59555
Now what I actully want to do is remove my 3tb drive from the LVM as I want to store important backups on it. And if say my 250 root drive dies I want to be able to plug the 3tb into a windows machine and read the data off it.

I really hope that I can fix this issue.

Thanks

Last edited by Zapnologica; 02-12-2014 at 02:43 PM.
 
Old 02-13-2014, 09:41 AM   #2
michaelk
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The system-config-lvm GUI utility should be able to remove the PV from your logical volume.
 
  


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