8:07 a.m.
Why always fail ?
-----Original Message-----
From: users-bounces(a)ovirt.org <users-bounces(a)ovirt.org> On Behalf Of Benny Zlotnik
Sent: Sunday, September 26, 2021 7:51 PM
To: Tommy Sway <sz_cuitao(a)163.com>
Cc: users <users(a)ovirt.org>
Subject: [ovirt-users] Re: about the Live Storage Migration
when you move a disk that's attached to a running VM, live storage migration will be
performed
On Sun, Sep 26, 2021 at 2:08 PM Tommy Sway < <mailto:sz_cuitao@163.com>
sz_cuitao(a)163.com> wrote:
From the document:
Overview of Live Storage Migration
Virtual disks can be migrated from one storage domain to another
while the virtual machine to which they are attached is running. This is referred to as
live storage migration. When a disk attached to a running virtual machine is migrated, a
snapshot of that disk’s image chain is created in the source storage domain, and the
entire image chain is replicated in the destination storage domain. As such, ensure that
you have sufficient storage space in both the source storage domain and the destination
storage domain to host both the disk image chain and the snapshot. A new snapshot is
created on each live storage migration attempt, even when the migration fails.
Consider the following when using live storage migration:
You can live migrate multiple disks at one time.
Multiple disks for the same virtual machine can reside across more
than one storage domain, but the image chain for each disk must reside on a single storage
domain.
You can live migrate disks between any two storage domains in the
same data center.
You cannot live migrate direct LUN hard disk images or disks marked
as shareable.
But where do users perform online storage migrations?
There seems to be no interface.
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