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    Out of Space - Ubuntu Linux 14.04

    Scheduled Pinned Locked Moved IT Discussion
    ubuntu 14.04linuxubuntu
    28 Posts 2 Posters 6.4k Views
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    • scottalanmillerS
      scottalanmiller
      last edited by

      Then do....

      pvcreate /dev/sdb
      

      To get started.

      1 Reply Last reply Reply Quote 0
      • scottalanmillerS
        scottalanmiller @handsofqwerty
        last edited by

        @handsofqwerty said:

        Is this what I need to follow?

        http://www.cyberciti.biz/faq/linux-disk-format/

        Well I would assume not since formatting is exactly what you want to avoid.

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        • scottalanmillerS
          scottalanmiller
          last edited by

          Once you have pvcreated, use vgextend to add the new block device to your existing VG.

          Look up the details with vgs

          handsofqwertyH 1 Reply Last reply Reply Quote 0
          • handsofqwertyH
            handsofqwerty @scottalanmiller
            last edited by

            @scottalanmiller said:

            Once you have pvcreated, use vgextend to add the new block device to your existing VG.

            Look up the details with vgs

            This is what I got.

            root@plex-server:~# pvcreate /dev/sdb
              Physical volume "/dev/sdb" successfully created
              
            root@plex-server:~# vgs
              VG             #PV #LV #SN Attr   VSize  VFree
              plex-server-vg   1   2   0 wz--n- 19.76g 20.00m
            
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            • handsofqwertyH
              handsofqwerty
              last edited by

              So basically, now what?

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              • scottalanmillerS
                scottalanmiller
                last edited by

                I think.....

                vgextend plex-server-vg /dev/sdb
                
                handsofqwertyH 2 Replies Last reply Reply Quote 0
                • handsofqwertyH
                  handsofqwerty @scottalanmiller
                  last edited by

                  @scottalanmiller said:

                  I think.....

                  vgextend plex-server-vg /dev/sdb
                  

                  Do I need to reboot?

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                  • handsofqwertyH
                    handsofqwerty @scottalanmiller
                    last edited by

                    @scottalanmiller said:

                    I think.....

                    vgextend plex-server-vg /dev/sdb
                    
                    root@plex-server:~# vgextend plex-server-vg /dev/sdb
                      Volume group "plex-server-vg" successfully extended
                    
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                    • handsofqwertyH
                      handsofqwerty
                      last edited by

                      I was able to tab complete the plex-server-vg after typing vgextend, so I'm pretty sure that's right.

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                      • handsofqwertyH
                        handsofqwerty
                        last edited by

                        This is what I have currently...

                        root@plex-server:~# vgs
                          VG             #PV #LV #SN Attr   VSize  VFree
                          plex-server-vg   2   2   0 wz--n- 44.75g 25.02g
                        root@plex-server:~# df -h
                        Filesystem                           Size  Used Avail Use% Mounted on
                        /dev/mapper/plex--server--vg-root     18G   17G  332K 100% /
                        none                                 4.0K     0  4.0K   0% /sys/fs/cgroup
                        udev                                 2.0G  4.0K  2.0G   1% /dev
                        tmpfs                                396M  712K  395M   1% /run
                        none                                 5.0M     0  5.0M   0% /run/lock
                        none                                 2.0G  4.0K  2.0G   1% /run/shm
                        none                                 100M     0  100M   0% /run/user
                        /dev/sda1                            236M   55M  169M  25% /boot
                        overflow                             1.0M   16K 1008K   2% /tmp
                        
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                        • scottalanmillerS
                          scottalanmiller
                          last edited by

                          So you can see that you now have 25GB free.

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                          • scottalanmillerS
                            scottalanmiller
                            last edited by

                            Now you need to lvextend to 100%free

                            I'm on a plane. You will need to Google the syntax.

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                            • handsofqwertyH
                              handsofqwerty
                              last edited by

                              Ok, I was able to figure it out. Here is the final results:

                              What I used to get info:

                              root@plex-server:/dev# lvs
                                LV     VG             Attr      LSize  Pool Origin Data%  Move Log Copy%  Convert
                                root   plex-server-vg -wi-ao--- 17.74g
                                swap_1 plex-server-vg -wi-ao---  2.00g
                              
                              root@plex-server:/dev# vgs
                                VG             #PV #LV #SN Attr   VSize  VFree
                                plex-server-vg   2   2   0 wz--n- 44.75g 25.02g
                              

                              The command I ran to extend the logical volume and the file system together and the results:

                              root@plex-server:/dev# lvextend -r plex-server-vg/root /dev/sdb
                                Extending logical volume root to 42.74 GiB
                                Logical volume root successfully resized
                              resize2fs 1.42.9 (4-Feb-2014)
                              Filesystem at /dev/mapper/plex--server--vg-root is mounted on /; on-line resizing required
                              old_desc_blocks = 2, new_desc_blocks = 3
                              The filesystem on /dev/mapper/plex--server--vg-root is now 11203584 blocks long.
                              
                              root@plex-server:/dev# df -h
                              Filesystem                           Size  Used Avail Use% Mounted on
                              /dev/mapper/plex--server--vg-root     42G   17G   24G  42% /
                              none                                 4.0K     0  4.0K   0% /sys/fs/cgroup
                              udev                                 2.0G  4.0K  2.0G   1% /dev
                              tmpfs                                396M  716K  395M   1% /run
                              none                                 5.0M     0  5.0M   0% /run/lock
                              none                                 2.0G  4.0K  2.0G   1% /run/shm
                              none                                 100M     0  100M   0% /run/user
                              /dev/sda1                            236M   55M  169M  25% /boot
                              overflow                             1.0M   16K 1008K   2% /tmp
                              

                              Thanks so much for your help and guidance @scottalanmiller ! I learned a lot today!

                              1 Reply Last reply Reply Quote 1
                              • handsofqwertyH
                                handsofqwerty
                                last edited by

                                Now, @scottalanmiller, one more question...the new virtual HDD is thin provisioned, so if I needed to expand it further, I can do it easily. Would I have to run lvextend again if I expand that drive in VMware? I assume so but are just curious. Thanks!

                                scottalanmillerS 1 Reply Last reply Reply Quote 1
                                • scottalanmillerS
                                  scottalanmiller @handsofqwerty
                                  last edited by

                                  @handsofqwerty said:

                                  Now, @scottalanmiller, one more question...the new virtual HDD is thin provisioned, so if I needed to expand it further, I can do it easily. Would I have to run lvextend again if I expand that drive in VMware? I assume so but are just curious. Thanks!

                                  Yes, expanding or growing underlying block storage will not make volume managers or file systems on top grow too. The system has no way to know how you want the new storage to be used, so you would not want this. What if you wanted to add a new filesystem, for example, you would take the same action but would be pretty surprised if you found that that was automatically added to an already existing filesystem.

                                  In a case like yours, it feels like the layers of expansion are obvious and you would "just want that." BUt if you were doing other tasks with the storage you would be like "oh, yeah, it can't make that judgement call for me."

                                  handsofqwertyH 1 Reply Last reply Reply Quote 1
                                  • handsofqwertyH
                                    handsofqwerty @scottalanmiller
                                    last edited by

                                    @scottalanmiller said:

                                    @handsofqwerty said:

                                    Now, @scottalanmiller, one more question...the new virtual HDD is thin provisioned, so if I needed to expand it further, I can do it easily. Would I have to run lvextend again if I expand that drive in VMware? I assume so but are just curious. Thanks!

                                    Yes, expanding or growing underlying block storage will not make volume managers or file systems on top grow too. The system has no way to know how you want the new storage to be used, so you would not want this. What if you wanted to add a new filesystem, for example, you would take the same action but would be pretty surprised if you found that that was automatically added to an already existing filesystem.

                                    In a case like yours, it feels like the layers of expansion are obvious and you would "just want that." BUt if you were doing other tasks with the storage you would be like "oh, yeah, it can't make that judgement call for me."

                                    I totally understand. It's easy to think about use cases only from one perspective, so I know what you mean. I figured that was the case but wanted to double check. So I should be able to, in theory, issue the same command, right?

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                                    • scottalanmillerS
                                      scottalanmiller
                                      last edited by

                                      Yup, you just do the same process again to expand in the future.

                                      handsofqwertyH 1 Reply Last reply Reply Quote 0
                                      • handsofqwertyH
                                        handsofqwerty @scottalanmiller
                                        last edited by

                                        @scottalanmiller said:

                                        Yup, you just do the same process again to expand in the future.

                                        Sweet, thanks!

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