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    Expanding LVM disk

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    hyper-v fedora fedora 25 fedora 26 lvm linux hyper-v 2012 r2 storage
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    • stacksofplatesS
      stacksofplates
      last edited by

      So there's two things here. 1) Did you resize the volume with LVM or just resize the disk with Hyper-V? 2) If you resized with LVM, you might have to do a partprobe to get the system to see the changes, but the reboot should have handled that.

      Here's the commands you need for LVM:

      pvresize /dev/<whatever the data volume is> 
      
      lvextend  -r -l 85%FREE /dev/mapper/vol_data1-lv_data
      

      The -r will automatically resize the file system.

      I usually leave space at the end for things like snapshots if needed which is why I put 85%.

      gjacobseG 1 Reply Last reply Reply Quote 3
      • gjacobseG
        gjacobse @stacksofplates
        last edited by

        @stacksofplates said in Expanding LVM disk:

        So there's two things here. 1) Did you resize the volume with LVM or just resize the disk with Hyper-V? 2) If you resized with LVM, you might have to do a partprobe to get the system to see the changes, but the reboot should have handled that.

        Here's the commands you need for LVM:

        pvresize /dev/<whatever the data volume is> 
        
        lvextend  -r -l 85%FREE /dev/mapper/vol_data1-lv_data
        

        The -r will automatically resize the file system.

        I usually leave space at the end for things like snapshots if needed which is why I put 85%.

        Just resized with Hyper-V.

         pvresize /dev/sdb
          Physical volume "/dev/sdb" changed
          1 physical volume(s) resized / 0 physical volume(s) not resized
        
         lvextend -r -l 90%FREE /dev/mapper/vol_data1-lv_data
          New size given (92160 extents) not larger than existing size (102399 extents)
        
         df
        Filesystem                    1K-blocks      Used Available Use% Mounted on
        devtmpfs                        2005988         0   2005988   0% /dev
        tmpfs                           2018208         0   2018208   0% /dev/shm
        tmpfs                           2018208       820   2017388   1% /run
        tmpfs                           2018208         0   2018208   0% /sys/fs/cgroup
        /dev/mapper/fedora-root        15718400  11923364   3795036  76% /
        tmpfs                           2018208       284   2017924   1% /tmp
        /dev/sda1                        999320    165984    764524  18% /boot
        /dev/mapper/vol_data1-lv_data 419221508 379061192  40160316  91% /data
        tmpfs                            403640         0    403640   0% /run/user/0
        
        stacksofplatesS 1 Reply Last reply Reply Quote 0
        • stacksofplatesS
          stacksofplates @gjacobse
          last edited by

          @gjacobse said in Expanding LVM disk:

          @stacksofplates said in Expanding LVM disk:

          So there's two things here. 1) Did you resize the volume with LVM or just resize the disk with Hyper-V? 2) If you resized with LVM, you might have to do a partprobe to get the system to see the changes, but the reboot should have handled that.

          Here's the commands you need for LVM:

          pvresize /dev/<whatever the data volume is> 
          
          lvextend  -r -l 85%FREE /dev/mapper/vol_data1-lv_data
          

          The -r will automatically resize the file system.

          I usually leave space at the end for things like snapshots if needed which is why I put 85%.

          Just resized with Hyper-V.

           pvresize /dev/sdb
            Physical volume "/dev/sdb" changed
            1 physical volume(s) resized / 0 physical volume(s) not resized
          
           lvextend -r -l 90%FREE /dev/mapper/vol_data1-lv_data
            New size given (92160 extents) not larger than existing size (102399 extents)
          
           df
          Filesystem                    1K-blocks      Used Available Use% Mounted on
          devtmpfs                        2005988         0   2005988   0% /dev
          tmpfs                           2018208         0   2018208   0% /dev/shm
          tmpfs                           2018208       820   2017388   1% /run
          tmpfs                           2018208         0   2018208   0% /sys/fs/cgroup
          /dev/mapper/fedora-root        15718400  11923364   3795036  76% /
          tmpfs                           2018208       284   2017924   1% /tmp
          /dev/sda1                        999320    165984    764524  18% /boot
          /dev/mapper/vol_data1-lv_data 419221508 379061192  40160316  91% /data
          tmpfs                            403640         0    403640   0% /run/user/0
          

          You will probably have to either reboot/unmount that disk and remount it/try partprobe.

          1 Reply Last reply Reply Quote 0
          • gjacobseG
            gjacobse
            last edited by

            Reboot works for me... nice and simple...

            stacksofplatesS 1 Reply Last reply Reply Quote 0
            • stacksofplatesS
              stacksofplates @gjacobse
              last edited by

              @gjacobse said in Expanding LVM disk:

              Reboot works for me... nice and simple...

              after it reboots run the lvextend command again.

              gjacobseG 1 Reply Last reply Reply Quote 0
              • gjacobseG
                gjacobse @stacksofplates
                last edited by gjacobse

                @stacksofplates said in Expanding LVM disk:

                @gjacobse said in Expanding LVM disk:

                Reboot works for me... nice and simple...

                after it reboots run the lvextend command again.

                 lvextend -r -l 90%FREE /dev/mapper/vol_data1-lv_data
                  New size given (92160 extents) not larger than existing size (102399 extents)
                
                df
                Filesystem                    1K-blocks      Used Available Use% Mounted on
                devtmpfs                        2005988         0   2005988   0% /dev
                tmpfs                           2018208         0   2018208   0% /dev/shm
                tmpfs                           2018208       820   2017388   1% /run
                tmpfs                           2018208         0   2018208   0% /sys/fs/cgroup
                /dev/mapper/fedora-root        15718400  11943068   3775332  76% /
                tmpfs                           2018208       128   2018080   1% /tmp
                /dev/sda1                        999320    165984    764524  18% /boot
                /dev/mapper/vol_data1-lv_data 419221508 379061772  40159736  91% /data
                tmpfs                            403640         0    403640   0% /run/user/0
                
                1 Reply Last reply Reply Quote 0
                • stacksofplatesS
                  stacksofplates
                  last edited by

                  What do pvdisplay, vgdisplay, and lvdisplay show?

                  1 Reply Last reply Reply Quote 0
                  • gjacobseG
                    gjacobse
                    last edited by

                    pvdisplay

                    pvdisplay
                      --- Physical volume ---
                      PV Name               /dev/sdb
                      VG Name               vol_data1
                      PV Size               800.00 GiB / not usable 3.00 MiB
                      Allocatable           yes
                      PE Size               4.00 MiB
                      Total PE              204799
                      Free PE               102400
                      Allocated PE          102399
                      PV UUID               GsfGRU-BNft-XL8c-4YHH-0fyp-y7No-oJXt0c
                    
                      --- Physical volume ---
                      PV Name               /dev/sda2
                      VG Name               fedora
                      PV Size               19.00 GiB / not usable 3.00 MiB
                      Allocatable           yes
                      PE Size               4.00 MiB
                      Total PE              4863
                      Free PE               511
                      Allocated PE          4352
                      PV UUID               aM5Bp0-CBN2-IDiy-M02P-20gb-0STR-Fucb0Z
                    
                    
                    1 Reply Last reply Reply Quote 0
                    • gjacobseG
                      gjacobse
                      last edited by

                      vgdisplay

                      vgdisplay
                        --- Volume group ---
                        VG Name               vol_data1
                        System ID
                        Format                lvm2
                        Metadata Areas        1
                        Metadata Sequence No  3
                        VG Access             read/write
                        VG Status             resizable
                        MAX LV                0
                        Cur LV                1
                        Open LV               1
                        Max PV                0
                        Cur PV                1
                        Act PV                1
                        VG Size               800.00 GiB
                        PE Size               4.00 MiB
                        Total PE              204799
                        Alloc PE / Size       102399 / 400.00 GiB
                        Free  PE / Size       102400 / 400.00 GiB
                        VG UUID               lr2fGv-9KgH-nQam-y3rZ-4sq4-hsO1-OACkXC
                      
                        --- Volume group ---
                        VG Name               fedora
                        System ID
                        Format                lvm2
                        Metadata Areas        1
                        Metadata Sequence No  3
                        VG Access             read/write
                        VG Status             resizable
                        MAX LV                0
                        Cur LV                2
                        Open LV               2
                        Max PV                0
                        Cur PV                1
                        Act PV                1
                        VG Size               19.00 GiB
                        PE Size               4.00 MiB
                        Total PE              4863
                        Alloc PE / Size       4352 / 17.00 GiB
                        Free  PE / Size       511 / 2.00 GiB
                        VG UUID               6ZJSML-ep20-ukkp-W1Vu-soRl-uufZ-kKDsMz
                      
                      1 Reply Last reply Reply Quote 0
                      • gjacobseG
                        gjacobse
                        last edited by

                        lvdisplay

                        lvdisplay
                          --- Logical volume ---
                          LV Path                /dev/vol_data1/lv_data
                          LV Name                lv_data
                          VG Name                vol_data1
                          LV UUID                GV6CFt-rFDT-VFuY-YSzB-8qHl-94pB-5Q0YVQ
                          LV Write Access        read/write
                          LV Creation host, time server-NextCloud.localdomain, 2017-06-14 16:56:18 -0400
                          LV Status              available
                          # open                 1
                          LV Size                400.00 GiB
                          Current LE             102399
                          Segments               1
                          Allocation             inherit
                          Read ahead sectors     auto
                          - currently set to     256
                          Block device           253:2
                        
                          --- Logical volume ---
                          LV Path                /dev/fedora/swap
                          LV Name                swap
                          VG Name                fedora
                          LV UUID                dARm8u-s32S-V1bN-VreO-Iret-G74L-Q1J5zd
                          LV Write Access        read/write
                          LV Creation host, time server-NextCloud.localdomain, 2017-06-14 10:51:10 -0400
                          LV Status              available
                          # open                 2
                          LV Size                2.00 GiB
                          Current LE             512
                          Segments               1
                          Allocation             inherit
                          Read ahead sectors     auto
                          - currently set to     256
                          Block device           253:1
                        
                          --- Logical volume ---
                          LV Path                /dev/fedora/root
                          LV Name                root
                          VG Name                fedora
                          LV UUID                d915Nx-AVEn-Ue96-6bux-WcMj-jPH5-CyJpor
                          LV Write Access        read/write
                          LV Creation host, time server-NextCloud.localdomain, 2017-06-14 10:51:10 -0400
                          LV Status              available
                          # open                 1
                          LV Size                15.00 GiB
                          Current LE             3840
                          Segments               1
                          Allocation             inherit
                          Read ahead sectors     auto
                          - currently set to     256
                          Block device           253:0
                        
                        1 Reply Last reply Reply Quote 0
                        • stacksofplatesS
                          stacksofplates
                          last edited by

                          You can try it two ways:

                          lvextend -r -l +90%FREE /dev/mapper/vol_data1-lv_data
                          
                          lvextend -r -l +102300 /dev/mapper/vol_data1-lv_data
                          

                          I hardly ever use the %FREE part and almost always use the extents instead. I figured the percentages took into account growing not just a percent of actual usage.

                          gjacobseG 1 Reply Last reply Reply Quote 0
                          • gjacobseG
                            gjacobse @stacksofplates
                            last edited by

                            @stacksofplates said in Expanding LVM disk:

                            You can try it two ways:

                            lvextend -r -l +90%FREE /dev/mapper/vol_data1-lv_data
                            
                            lvextend -r -l +102300 /dev/mapper/vol_data1-lv_data
                            

                            I hardly ever use the %FREE part and almost always use the extents instead. I figured the percentages took into account growing not just a percent of actual usage.

                            Le - Sigh.. And this is where I have to laugh - and I know you'll laugh,.. and @scottalanmiller will laugh..@JaredBusch will do something different...

                            lvextend -r -l 90%Free /dev/mapper/vol_data1-lv_data
                            

                            is totaly different than the correct one

                            lvextend -r -l +90%Free /dev/mapper/vol_data1-lv_data
                            

                            now we see it.

                             df
                            Filesystem                    1K-blocks      Used Available Use% Mounted on
                            devtmpfs                        2005988         0   2005988   0% /dev
                            tmpfs                           2018208         0   2018208   0% /dev/shm
                            tmpfs                           2018208       820   2017388   1% /run
                            tmpfs                           2018208         0   2018208   0% /sys/fs/cgroup
                            /dev/mapper/fedora-root        15718400  11941636   3776764  76% /
                            tmpfs                           2018208       128   2018080   1% /tmp
                            /dev/sda1                        999320    165984    764524  18% /boot
                            /dev/mapper/vol_data1-lv_data 796708868 379480528 417228340  48% /data
                            tmpfs                            403640         0    403640   0% /run/user/0
                            
                            1 Reply Last reply Reply Quote 2
                            • JaredBuschJ
                              JaredBusch
                              last edited by

                              Did you actually fill up 400GB?

                              Are you running maintenance?

                              If not, then versions and such will chew up the free space.

                              By default, this is set to AJAX. This is perfectly workable as long as your users are actually using the web interface. If you are only using the sync client, then you will run into issues with maintenance not being ran.

                              The site this image was taken from is 100% sync client. No one uses the web interface. Because of that I had to setup a cron job. because version history was eating all the storage space.

                              0_1501534729178_33dc25a7-55f4-42f4-99d4-2b7dc0faed23-image.png

                              1 Reply Last reply Reply Quote 0
                              • JaredBuschJ
                                JaredBusch
                                last edited by

                                Open a crontab for the apache user

                                crontab -u apache -e
                                
                                */15 * * * * php -f /var/www/html/nextcloud/cron.php
                                
                                1 Reply Last reply Reply Quote 0
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