Re: [ovirt-users] Maintenance mode for storage?

2017-05-14 Thread Nir Soffer
On Sun, May 14, 2017 at 7:59 PM Troels Arvin  wrote:

> Hello,
>
> Fred Rolland wrote:
> > You cannot put a storage domain to maintenance if you have running VMs
> > using disks located in this domain.
>
> OK.
>
> Am I right about the following: A storage domain needs to be in
> maintenance mode before a LUN may be removed from it?
>

Yes.


> - And if so: This means that ovirt does not support online removal of a
> LUN from a storage domain, even if there's sufficient free space in other
> LUNs in the storage domain?
>

Yes, removing a lun from a storage domain require moving the storage
domain to maintenance.

If there is no space to remove a lun, you will not be able to remove it even
if the domain is in maintenance.

Nir
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Re: [ovirt-users] Maintenance mode for storage?

2017-05-14 Thread Troels Arvin
Hello,

Fred Rolland wrote:
> You cannot put a storage domain to maintenance if you have running VMs
> using disks located in this domain.

OK.

Am I right about the following: A storage domain needs to be in 
maintenance mode before a LUN may be removed from it?

- And if so: This means that ovirt does not support online removal of a 
LUN from a storage domain, even if there's sufficient free space in other 
LUNs in the storage domain?


-- 
Regards,
Troels arvin

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Re: [ovirt-users] Maintenance mode for storage?

2017-05-14 Thread Fred Rolland
Hi,

You cannot put a storage domain to maintenance if you have running VMs
using disks located in this domain.
Putting a storage domain to maintenance will disconnect all hosts from the
storage backend (NFS :unmount, ISCSI: iscsiadm -m session -r )-u)

Regards,

Freddy

On Sun, May 14, 2017 at 1:12 PM, Troels Arvin  wrote:

> Hello,
>
> I would like to make use of the new ovirt feature where a LUN may be
> removed from a storage domain, provided there's enough free space on the
> remaining LUNs in the domain.
>
> It seems the storage domain needs to be put in maintenance mode before
> this may be accomplished. But what's the consequence of putting a storage
> domain in maintenance mode? Can guests using the domain keep running
> while the storage domain is in maintenance mode? Does something stop
> working while a storage domain is in maintenance mode?
>
> --
> Regards,
> Troels Arvin
>
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[ovirt-users] Maintenance mode for storage?

2017-05-14 Thread Troels Arvin
Hello,

I would like to make use of the new ovirt feature where a LUN may be 
removed from a storage domain, provided there's enough free space on the 
remaining LUNs in the domain.

It seems the storage domain needs to be put in maintenance mode before 
this may be accomplished. But what's the consequence of putting a storage 
domain in maintenance mode? Can guests using the domain keep running 
while the storage domain is in maintenance mode? Does something stop 
working while a storage domain is in maintenance mode?

-- 
Regards,
Troels Arvin

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