Adding harddisk - to Directory Storage

[sohaib]

now I have created a LVM what are the advantages if I move my VM from local storage to LVM what are the benefits, does it make VM run faster if move to LVM partition.

 

[tom]

by using block devices the VM has direct access to the disk, no host file system involved. known to perform better, also in the long run.

 

[udo]

now I have created a LVM what are the advantages if I move my VM from local storage to LVM what are the benefits, does it make VM run faster if move to LVM partition.

Hi,
yes it's a little bit faster because you don't need a filesystem-layer between vm-raw-disk and disk.
The big benefit has lvm-storage if you use it on shared storage (FC-SAN, iSCSI-SAN, drbd) - than you be able to do livemigration between the nodes.

Udo

 

[sohaib]

If I setup a cluster will High Availaibility be in effect automatically is that something comes built in as soon as you setup cluster or we have to perform manual action to accomplish that, please advise.

Also once I have some VM on my second machine which I am thinking of making a NODE2 will those VM be destroyed ? please advise.


ps:

UDO,

You are real asset to this Proxmox community I just cant stop thanking you, you made me stay with proxmox and I have no problem donating to proxmox for this wonderful piece of software.

 

[udo]

If I setup a cluster will High Availaibility be in effect automatically is that something comes built in as soon as you setup cluster or we have to perform manual action to accomplish that, please advise.

Hi,
perhaps you should create an new thread - this one get confusing.

About ha look here: http://forum.proxmox.com/threads/4493-Migrate-VM-from-crashed-node and use the search function of the forum - there are more threads about ha.

Also once I have some VM on my second machine which I am thinking of making a NODE2 will those VM be destroyed ? please advise.

if the VMIDs are different you can do that. Look in the wiki - there are an article about cluster.
The storage-config, iso-files and templates are synced from the master. If you need special iso-files on the node, you must first copy them to the master (before join the node).

Udo