|
|
| Line 3: |
Line 3: |
| {{shortcut|ISOP:DRESIZE}} | | {{shortcut|ISOP:DRESIZE}} |
|
| |
|
| Resize disks in our Xen guests
| |
|
| |
|
| == Contact Information ==
| | This SOP has moved to the fedora Infrastructure SOP git repo. Please see the current document at: http://infrastructure.fedoraproject.org/infra/docs/guestdisk.txt |
| Owner: Fedora Infrastructure Team
| |
|
| |
|
| Contact: #fedora-admin, sysadmin-main
| | For changes, questions or comments, please contact anyone in the Fedora Infrastructure team. |
|
| |
|
| Location: PHX, Tummy, ibiblio, Telia, OSUOSL
| |
|
| |
| Servers: All xen servers, kvm/libvirt servers.
| |
|
| |
| Purpose: Resize guest disks
| |
|
| |
| == How to do it ==
| |
|
| |
| === Xen Guests ===
| |
|
| |
| # SSH to the xen server and resize the guest's logical volume. If you want to be extra careful, make a snapshot of the LV first: <pre>lvcreate -n [guest name]-snap -L 10G -s /dev/VolGroup00/[guest name] # Optional, but always good to be careful</pre><pre>lvresize -L [new total size]G /dev/VolGroup00/[guest name]</pre>
| |
| # Shutdown the guest and then start it up again: <pre>xm shutdown -w [guest name]</pre><pre>xm create [guest name]</pre>
| |
| # Login into the guest: <pre>xm console [guest name]</pre>
| |
| # On the guest, run <pre>fdisk /dev/xvda</pre>
| |
| # Delete the third partition (the LVM partition on the guest) and recreate it with the maximum size. Make sure to set its type to LVM.
| |
| # Run partprobe: <pre>partprobe</pre>
| |
| # Check the size of the third partition: <pre>fdisk -l /dev/xvda3</pre> If this still reflects the old size, then reboot the guest and verify that its size changed correctly when it comes up again.
| |
| # Login to the guest again, and run <pre>pvresize /dev/xvda3</pre>
| |
| # A vgs should now show the new size. Use lvresize to resize the root lv: <pre>lvresize -L [new root partition size]G /dev/GuestVolGroup00/root</pre>
| |
| # Finally, resize the root partition: <pre>resize2fs /dev/GuestVolGroup00/root</pre>, verify that everything worked out, and delete the snapshot you made if you made one.
| |
|
| |
| === KVM/libvirt Guests ===
| |
|
| |
| # SSH to the kvm server and resize the guest's logical volume. If you want to be extra careful, make a snapshot of the LV first: <pre>lvcreate -n [guest name]-snap -L 10G -s /dev/VolGroup00/[guest name] # Optional, but always good to be careful</pre>
| |
| # Shutdown the guest: <pre>sudo virsh shutdown [guest name]</pre>
| |
| # Disable the guests lv: <pre>lvchange -an /dev/VolGroup00/[guest name]</pre>
| |
| # Resize the lv: <pre>lvresize -L [NEW TOTAL SIZE]G /dev/VolGroup00/[guest name]</pre>
| |
| # Enable the lv: <pre>lvchange -ay /dev/VolGroup00/[guest name]</pre>
| |
| # Bring the guest back up: <pre>sudo virsh start [guest name]</pre>
| |
| # Login into the guest: <pre>sudo virsh console [guest name]</pre>
| |
| # On the guest, run <pre>fdisk /dev/vda</pre>
| |
| # Delete the the LVM partition on the guest you want to add space to and recreate it with the maximum size. Make sure to set its type to LVM (8e)
| |
| # Run partprobe: <pre>partprobe</pre>
| |
| # Check the size of the partition: <pre>fdisk -l /dev/vdaN</pre> If this still reflects the old size, then reboot the guest and verify that its size changed correctly when it comes up again.
| |
| # Login to the guest again, and run <pre>pvresize /dev/vdaN</pre>
| |
| # A vgs should now show the new size. Use lvresize to resize the root lv: <pre>lvresize -L [new root partition size]G /dev/GuestVolGroup00/root</pre>
| |
| # Finally, resize the root partition: <pre>resize2fs /dev/GuestVolGroup00/root</pre>, verify that everything worked out, and delete the snapshot you made if you made one.
| |
|
| |
|
| [[Category:Infrastructure SOPs]] | | [[Category:Infrastructure SOPs]] |
