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--- tech:documentation:procedures:vm:vm_disk_expansion_lvm_xfs [2011/08/11 16:13] – kohofer
+++ tech:documentation:procedures:vm:vm_disk_expansion_lvm_xfs [2012/02/13 11:00] – kohofer
@@ Line 1: / Line 1: @@
-====== VM disk Expansion LVM+XFS =======
+====== VM disk Expansion LVM with XFS/EXT4 =======
-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
+<note important>CREATE SNAPSHOT</note>
-**THEN TAKE A SNAPSHOT!!!**
-then from on the vm either create an additional partition on the free space. The partition type is 8e
+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
+**EXPAND ORIGINAL DISK**
+Create an additional partition on the free space, say you increased the existing disc
+from 8GB to 15GB. The partition type is 8e.
   cfdisk /dev/sda
@@ Line 17: / Line 22: @@
-if you are running a newer kernel you can issue this command to male linux re-read the disk geometry:
+now you have to extend the volgroup. use ''lvdisplay'' to see which is the name of the group,\\
+in this example it's **base**
-  echo "1" > /sys/class/scsi_device/<device>/device/rescan
-or assign the whole new disk to lvm assuming it's /dev/sdb
-  apt-get install scsitools
-  rescan-scsi-bus.sh
-  cfdisk /dev/sdb
-### for example if the new partition is /dev/sda3
-   pvcreate /dev/sdb
-now you have to extend the volgroup. use ''lvdisplay'' to see which is the name of the group, in this example it's base
   lvdisplay
@@ Line 103: / Line 94: @@
 .5 G is the NEW total size of the disk we want to extend!
+Extend the LV to use all free space
-  lvextend -L 11.5G  /dev/base/data
+  lvextend -l +100%FREE /dev/base/data
 Extend with 20G
   lvextend -L +20G  /dev/base/data
@@ Line 114: / Line 103: @@
    xfs_growfs /data
+===== FOR EXT3/4 =====
+Check that the filesystem is ok
+  fsck.ext4 /dev/root/root
+Extend filesystem  to use all free space
+  lvextend -l +100%FREE /dev/base/data
+Now resize the filesystem
+  resize2fs -p /dev/root/root
 ===== For swap =====
-swapoff /dev/base/swap
+  swapoff /dev/base/swap
-lvextend -L 3.9G /dev/base/swap
+  lvextend -L 3.9G /dev/base/swap
-mkswap /dev/base/swap
+  mkswap /dev/base/swap
-swapon /dev/base/swap
+  swapon /dev/base/swap
-free
+  free
 Check if filesystems are ok, and only then release the snapshot
-For ext2/ext3
-  resize2fs /dev/base/data
 ======= Create LVM =======