| |
|
 |
|
 |
|
|
|
| |
|
|
xen-users
Re: [Xen-users] Xen 4.0 feature request
Why can't you save only one VM with LVM snapshots? Sounds like you
have an odd implementation, rather that there being a problem with
LVM. We export two LVs per domU - 1 'data' and 1 'swap'. I can
easily snapshot the 'data' LV of any single domU without a
performance problem.
How do you deal with the fact that you are snapshotting a dirty state
? Unless you are using LVM inside the DomU (in which case Xen is
irrelevant), then when you make a snapshot, it will NOT include any
dirty blocks in the guests cache.
Unless you collaborate with the guest, get it to stop updating the
filesystem, and flush it's cache - then you are pretty well guaranteed
dirty (and probably corrupt) data.
Sorry,
but I think that are more cleaned that if you want manage a XEN
consistent snapshot, XEN must have this function!
O.K., you CAN use other external tool to have a consistent snapshots.
Very unique mode are use LVM, BUT, if you want have use a LVM snapshot,
you MUST have dedicated LMV volume for ANY virtual machine....
....good?
You think really that, in a scenario with 30/50/100/150 active virtual
machine, is possible use a dedicated LVM volume for any machine??????????
Enrico
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users
|
|
|
| |
|
Home