[linux-lvm] raid10 with missing redundancy, but health status claims it is ok.

Demi Marie Obenour demi at invisiblethingslab.com
Mon May 30 14:07:56 UTC 2022

On Mon, May 30, 2022 at 10:16:27AM +0200, Olaf Seibert wrote:
> First, John, thanks for your reply.
> On 28.05.22 18:15, John Stoffel wrote:
> >>>>>> "Olaf" == Olaf Seibert <o.seibert at syseleven.de> writes:
> > 
> > I'm leaving for the rest of the weekend, but hopefully this will help you...
> > 
> > Olaf> Hi all, I'm new to this list. I hope somebody here can help me.
> > 
> > We will try!  But I would strongly urge that you take backups of all
> > your data NOW, before you do anything else.  Copy to another disk
> > which is seperate from this system just in case.
> Unfortunately there are some complicating factors that I left out so far.
> The machine in question is a host for virtual machines run by customers.
> So we can't just even look at the data, never mind rsyncing it.
> (the name "nova" might have given that away; that is the name of the 
> OpenStack compute service)

Can you try to live-migrate the VMs off of this node?  If not, can you
announce a maintenance window and power off the VMs so you can take a
block-level backup?
Demi Marie Obenour (she/her/hers)
Invisible Things Lab
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