Add HDD in node proxmox

Hello colleagues , talk to them a little of what I'm trying and I failed to know how to do.


I have two servers , both with proxmoc ( pmx1 and pmx2 ) , I have them as a cluster , and is two fine, now , I do not understand how you use Proxmox their datastores , I uploaded several images to pmx1 and if I try to install a vm in pmx2 not see the isos , I have to upload it to pmx2 to see it, but my surprise me to pmx2 pmx1 moves , and do not understand how it works , I come from vmware and is very different .


But really what I want to do is this, pmx2 want to add an additional datastore , ie , methyl a hard drive but the server, but have not found how to give up now, I found how to extend the existing , but not how to create one again, so that I require ? , first if I extend the current drive , the day passing a disk fails ? sounds like some kind of raid 1 ( adds two disks but fails one breaks all) , second , I'm interested in getting through this album clowd not endorse this system.


I found some reference in
http://serverfault.com/questions/423...ive-to-proxmox
and
http://proxmoxve.blogspot.mx/2013/12...roxmox-ve.html
and
http://pve.proxmox.com/wiki/Storage_Model


but I can not see the storage on the web gui when I create a new LVM, I can only see the pve .


someone I could illustrate some?


best regards