Hi, I have installed proxmox 3.1 . It worked with proxmox from version 1.9 and I love this software + openvz + kvm jeje.
I have a question, I would like to backup virtual machines on an additional disk that I added to the server locally and wanted to know if it is better to format it as ext4 and mount it and add it as a directory in the storage section Proxmox, or according to this documentation , add or create a lvm volume group and backup in? That way is more effective and why??
That is, it is faster to save backup a mounted hard drive without lvm or lvm mounted hard disk as in the documentation of down here?
Thanks in advanced.
[h=3]LVM Groups with Local Backing[/h]In this configuration, physical block devices (which can be DRBD devices) are used as the physical volumes for LVM logical volume storage. Before you can store VM´s this way, you first need to configure LVM2 using the console. Full management is not possible through the web interface at this time
This is a three step procedure (I just plugged in a 8 GB USB Stick for demonstration, recognized as /dev/sdb on my box)
proxmox-ve:~# pvcreate /dev/sdb1
Physical volume "/dev/sdb1" successfully created
proxmox-ve:~#Second, create a volume group (vg):
proxmox-ve:~# vgcreate usb-stick /dev/sdb1
Volume group "usb-stick" successfully created
proxmox-ve:~#And finally: Add the LVM Group to the storage list via the web interface:
"Storage name: usb", "Base storage: Existing volume groups", "Volume Group Name: usb-stick"
Now you can create the KVM VM:
Type: Fully virtualized (KVM)
Disk storage: usb (lvm)
Disk space (GB): 1
Image format: raw (that is the only option you can choose now and therefore does not support Live_Snapshots)
After the creation (let's put will be VM 117), you will have an additional logical volume of the size of the VM's disk space:
proxmox-ve:~# lvdisplay
--- Logical volume ---
LV Name /dev/usb-stick/vm-117-disk-1
VG Name usb-stick
LV Size 1.00 GB
Note: after the experiment, to remove the test storage do:
Remove usb storage from web interface
then
proxmox-ve:~# vgremove usb-stick
Volume group "usb-stick" successfully removedthen
proxmox-ve:~# pvremove /dev/sdb1
Labels on physical volume "/dev/sdb1" successfully wiped
I have a question, I would like to backup virtual machines on an additional disk that I added to the server locally and wanted to know if it is better to format it as ext4 and mount it and add it as a directory in the storage section Proxmox, or according to this documentation , add or create a lvm volume group and backup in? That way is more effective and why??
That is, it is faster to save backup a mounted hard drive without lvm or lvm mounted hard disk as in the documentation of down here?
Thanks in advanced.
[h=3]LVM Groups with Local Backing[/h]In this configuration, physical block devices (which can be DRBD devices) are used as the physical volumes for LVM logical volume storage. Before you can store VM´s this way, you first need to configure LVM2 using the console. Full management is not possible through the web interface at this time
This is a three step procedure (I just plugged in a 8 GB USB Stick for demonstration, recognized as /dev/sdb on my box)
- Physically install all devices you wish to import into a volume group
- Define those physical devices as LVM physical volumes (storage that can be used by LVM volume groups.
proxmox-ve:~# pvcreate /dev/sdb1
Physical volume "/dev/sdb1" successfully created
proxmox-ve:~#Second, create a volume group (vg):
proxmox-ve:~# vgcreate usb-stick /dev/sdb1
Volume group "usb-stick" successfully created
proxmox-ve:~#And finally: Add the LVM Group to the storage list via the web interface:
"Storage name: usb", "Base storage: Existing volume groups", "Volume Group Name: usb-stick"
Now you can create the KVM VM:
Type: Fully virtualized (KVM)
Disk storage: usb (lvm)
Disk space (GB): 1
Image format: raw (that is the only option you can choose now and therefore does not support Live_Snapshots)
After the creation (let's put will be VM 117), you will have an additional logical volume of the size of the VM's disk space:
proxmox-ve:~# lvdisplay
--- Logical volume ---
LV Name /dev/usb-stick/vm-117-disk-1
VG Name usb-stick
LV Size 1.00 GB
Note: after the experiment, to remove the test storage do:
Remove usb storage from web interface
then
proxmox-ve:~# vgremove usb-stick
Volume group "usb-stick" successfully removedthen
proxmox-ve:~# pvremove /dev/sdb1
Labels on physical volume "/dev/sdb1" successfully wiped
