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tech:documentation:procedures:vm:vm_disk_expansion_lvm_xfs [2013/04/12 10:54] – [Create LVM] KoHofer@unibz.ittech:documentation:procedures:vm:vm_disk_expansion_lvm_xfs [2019/01/16 10:03] – external edit 127.0.0.1
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 Expand the original disk or add a second vdisk from **Infrastructure Client**.\\ Expand the original disk or add a second vdisk from **Infrastructure Client**.\\
-If you want to perform a grow w/o reboot you have to add a second disk.+<del>If you want to perform a grow w/o reboot you have to add a second disk.</del>
  
 If you are on a kernel newer or equal to 2.6.32 then you can issue the command If you are on a kernel newer or equal to 2.6.32 then you can issue the command
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 whereby after scsi_device you need to find the correct scsi device whereby after scsi_device you need to find the correct scsi device
  
 +or
 +
 +  apt-get install scsitools
 +  rescan-scsi-bus
 +
 +At the end it should list that a new device was found, note down the name/number!
 +
 +  echo '1' > /sys/class/scsi_disk/32\:0\:1\:0/device/rescan
 +
 +IMPORTANT: Be sure to replace the 32\:0\:1\:0 with the appropriate disk for your purposes. 
  
  
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 from 8GB to 15GB. The partition type is 8e. from 8GB to 15GB. The partition type is 8e.
  
-  cfdisk /dev/sda+  cfdisk /dev/sda or cfdisk /dev/sdb
  
 # for example if the new partition is /dev/sda3 # for example if the new partition is /dev/sda3
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 Now resize the filesystem Now resize the filesystem
 +
 +Debian System:
  
   resize2fs -p /dev/base/root   resize2fs -p /dev/base/root
  
 +Centos/Fedora System:
 +
 +  resize4fs -p /dev/base/root
  
 ===== For swap ===== ===== For swap =====
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    lvcreate -l +100%FREE -n lvol1 vg01    lvcreate -l +100%FREE -n lvol1 vg01
  
-or you can specify the size (1500M) +oder wir könne die Größen angeben! (1500M) 
-   +
    lvcreate -L 1500M -n lvol1 vg01    lvcreate -L 1500M -n lvol1 vg01
-   +
 Filesysteme anlegen Filesysteme anlegen
  
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 Damit die neuen Filesysteme nun bei jedem Systemstart automatisch gemountet werden, müssen wir sie in die Datei /etc/fstab eintragen (siehe 'man fstab'). In unserem Scenario sehen die zusätzlichen Einträge wie folgt aus: Damit die neuen Filesysteme nun bei jedem Systemstart automatisch gemountet werden, müssen wir sie in die Datei /etc/fstab eintragen (siehe 'man fstab'). In unserem Scenario sehen die zusätzlichen Einträge wie folgt aus:
  
-   /dev/vg01/lvol1 /usr ext2 defaults 1 2+   /dev/vg01/lvol1 /usr ext4 defaults 1 2 
 + 
 +===== Links ===== 
 + 
 + 
 +[[http://www.thegeekstuff.com/2010/08/how-to-create-lvm/|How To Create LVM Using vgcreate, lvcreate, and lvextend lvm2 Commands]]\\ 
 +[[https://unix.stackexchange.com/questions/47380/where-does-lvm-store-data|Where does LVM store data?]]\\ 
 +[[http://www.howtoforge.com/linux_lvm|A Beginner's Guide To LVM]]\\ 
 +[[http://wiki.gentoo.org/wiki/LVM#LV_.28Logical_Volume.29|LVM]] VERY GOOD SOURCE!\\ 
 +[[http://www.funtoo.org/LVM_Fun#Physical_volumes_creation|LVM Fun]] VERY GOOD SOURCE!\\ 
 +[[http://serverfault.com/questions/223361/how-to-recover-logical-volume-deleted-with-lvremove|How to recover logical volume deleted with lvremove]]\\ 
 +[[http://www.novell.com/support/kb/doc.php?id=3803380|LVM Volume Group Shows "unknown device"]]
  
-http://www.linuxhaven.de/dlhp/HOWTO-test/DE-LVM-HOWTO-2.html 
  
 +http://www.linuxhaven.de/dlhp/HOWTO-test/DE-LVM-HOWTO-2.html\\
 http://www.howtogeek.com/howto/40702/how-to-manage-and-use-lvm-logical-volume-management-in-ubuntu/ http://www.howtogeek.com/howto/40702/how-to-manage-and-use-lvm-logical-volume-management-in-ubuntu/
/data/www/wiki.inf.unibz.it/data/pages/tech/documentation/procedures/vm/vm_disk_expansion_lvm_xfs.txt · Last modified: 2020/10/13 16:46 by kohofer