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Posted to users@cloudstack.apache.org by Alessandro Caviglione <c....@gmail.com> on 2021/05/07 08:22:16 UTC
Primary storage migration
Hi guys,
I've a big doubt for next few weeks.
Actually we're running CS 4.13 and one of the cluster we're managing is
based on xenserver 7.2.
Today, primary storage is provided through NFS share in 192.168.200.x
subnet but we've want to migrate to another storage that provide iSCSI lun
on 10.0.0.x subnet.
This iscsi subnet is an isolated subnet so no routing is possible.
What you suggests to do?
Is it possible to add a couple of nics to xenserver for iscsi and manage it
on CS?
Thank you!
RE: [!!Mass Mail]Primary storage migration
Posted by Дикевич Евгений Александрович <ev...@becloud.by>.
Hi
You can add new iSCSI SR in Xenserver Center and then add new Primary Storage in CS (PreSetup). If needed you can migrate VM from one datastore to another.
-----Original Message-----
From: Alessandro Caviglione [mailto:c.alessandro@gmail.com]
Sent: Friday, May 7, 2021 11:22 AM
To: users@cloudstack.apache.org
Subject: [!!Mass Mail]Primary storage migration
Hi guys,
I've a big doubt for next few weeks.
Actually we're running CS 4.13 and one of the cluster we're managing is based on xenserver 7.2.
Today, primary storage is provided through NFS share in 192.168.200.x subnet but we've want to migrate to another storage that provide iSCSI lun on 10.0.0.x subnet.
This iscsi subnet is an isolated subnet so no routing is possible.
What you suggests to do?
Is it possible to add a couple of nics to xenserver for iscsi and manage it on CS?
Thank you!
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Re: Primary storage migration
Posted by Alessandro Caviglione <c....@gmail.com>.
Yes, no problem to change the port from access to trunk, but I'm not sure
where I can create another interface with tagged VLAN on xenserver...
On Fri, May 7, 2021 at 11:15 AM Alex Mattioli <Al...@shapeblue.com>
wrote:
> Hi Alessandro,
>
> If the switchports for storage are in access mode then indeed you can't
> present another VLAN there.
> You might be able to create a new logical interface on Xen in the same
> VLAN with the new IP range, but that's not something I've tried before
> (works fine on ESX and KVM though).
>
> I'd always recommend to use Trunked ports everywhere, keeping your L2
> fabric as simple as possible and all the intelligence down in the
> hypervisor and not in the switch, this gives you much more flexibility. But
> of course, other ways of setting up are always valid, that's just my
> preferred one based on experience.
>
> Regards,
> Alex
>
>
>
>
> -----Original Message-----
> From: Alessandro Caviglione <c....@gmail.com>
> Sent: 07 May 2021 10:50
> To: users@cloudstack.apache.org
> Subject: Re: Primary storage migration
>
> Thank you Alex,
> iscsi subnet is present on same switch fabric so we can add it, but since
> xenserver port are actually in ACCESS with specific VLAN, how can I add an
> IP with a tagged VLAN on xenserver?
>
> On Fri, May 7, 2021 at 10:29 AM Alex Mattioli <Alex.Mattioli@shapeblue.com
> >
> wrote:
>
> > Hi Alessandro,
> >
> > Is the new iSCSI subnet present in the same L2 switching fabric? In
> > that case you just need a VLAN interface on the 10.0.0.x network. If
> > it is in a separate switching fabric then you can add a couple extra
> > NICs to your host and connect to that network.
> >
> > Migration wise, as long as the XenServer host can mount SRs from both
> > storage servers then it should be able to migrate your VMs and volumes
> > across.
> >
> > Regards,
> > Alex
> >
> >
> >
> >
> > -----Original Message-----
> > From: Alessandro Caviglione <c....@gmail.com>
> > Sent: 07 May 2021 10:22
> > To: users@cloudstack.apache.org
> > Subject: Primary storage migration
> >
> > Hi guys,
> > I've a big doubt for next few weeks.
> > Actually we're running CS 4.13 and one of the cluster we're managing
> > is based on xenserver 7.2.
> > Today, primary storage is provided through NFS share in 192.168.200.x
> > subnet but we've want to migrate to another storage that provide iSCSI
> > lun on 10.0.0.x subnet.
> > This iscsi subnet is an isolated subnet so no routing is possible.
> > What you suggests to do?
> > Is it possible to add a couple of nics to xenserver for iscsi and
> > manage it on CS?
> >
> > Thank you!
> >
>
RE: Primary storage migration
Posted by Alex Mattioli <Al...@shapeblue.com>.
Hi Alessandro,
If the switchports for storage are in access mode then indeed you can't present another VLAN there.
You might be able to create a new logical interface on Xen in the same VLAN with the new IP range, but that's not something I've tried before (works fine on ESX and KVM though).
I'd always recommend to use Trunked ports everywhere, keeping your L2 fabric as simple as possible and all the intelligence down in the hypervisor and not in the switch, this gives you much more flexibility. But of course, other ways of setting up are always valid, that's just my preferred one based on experience.
Regards,
Alex
-----Original Message-----
From: Alessandro Caviglione <c....@gmail.com>
Sent: 07 May 2021 10:50
To: users@cloudstack.apache.org
Subject: Re: Primary storage migration
Thank you Alex,
iscsi subnet is present on same switch fabric so we can add it, but since xenserver port are actually in ACCESS with specific VLAN, how can I add an IP with a tagged VLAN on xenserver?
On Fri, May 7, 2021 at 10:29 AM Alex Mattioli <Al...@shapeblue.com>
wrote:
> Hi Alessandro,
>
> Is the new iSCSI subnet present in the same L2 switching fabric? In
> that case you just need a VLAN interface on the 10.0.0.x network. If
> it is in a separate switching fabric then you can add a couple extra
> NICs to your host and connect to that network.
>
> Migration wise, as long as the XenServer host can mount SRs from both
> storage servers then it should be able to migrate your VMs and volumes
> across.
>
> Regards,
> Alex
>
>
>
>
> -----Original Message-----
> From: Alessandro Caviglione <c....@gmail.com>
> Sent: 07 May 2021 10:22
> To: users@cloudstack.apache.org
> Subject: Primary storage migration
>
> Hi guys,
> I've a big doubt for next few weeks.
> Actually we're running CS 4.13 and one of the cluster we're managing
> is based on xenserver 7.2.
> Today, primary storage is provided through NFS share in 192.168.200.x
> subnet but we've want to migrate to another storage that provide iSCSI
> lun on 10.0.0.x subnet.
> This iscsi subnet is an isolated subnet so no routing is possible.
> What you suggests to do?
> Is it possible to add a couple of nics to xenserver for iscsi and
> manage it on CS?
>
> Thank you!
>
Re: Primary storage migration
Posted by Alessandro Caviglione <c....@gmail.com>.
Thank you Alex,
iscsi subnet is present on same switch fabric so we can add it, but since
xenserver port are actually in ACCESS with specific VLAN, how can I add an
IP with a tagged VLAN on xenserver?
On Fri, May 7, 2021 at 10:29 AM Alex Mattioli <Al...@shapeblue.com>
wrote:
> Hi Alessandro,
>
> Is the new iSCSI subnet present in the same L2 switching fabric? In that
> case you just need a VLAN interface on the 10.0.0.x network. If it is in a
> separate switching fabric then you can add a couple extra NICs to your host
> and connect to that network.
>
> Migration wise, as long as the XenServer host can mount SRs from both
> storage servers then it should be able to migrate your VMs and volumes
> across.
>
> Regards,
> Alex
>
>
>
>
> -----Original Message-----
> From: Alessandro Caviglione <c....@gmail.com>
> Sent: 07 May 2021 10:22
> To: users@cloudstack.apache.org
> Subject: Primary storage migration
>
> Hi guys,
> I've a big doubt for next few weeks.
> Actually we're running CS 4.13 and one of the cluster we're managing is
> based on xenserver 7.2.
> Today, primary storage is provided through NFS share in 192.168.200.x
> subnet but we've want to migrate to another storage that provide iSCSI lun
> on 10.0.0.x subnet.
> This iscsi subnet is an isolated subnet so no routing is possible.
> What you suggests to do?
> Is it possible to add a couple of nics to xenserver for iscsi and manage
> it on CS?
>
> Thank you!
>
RE: Primary storage migration
Posted by Alex Mattioli <Al...@shapeblue.com>.
Hi Alessandro,
Is the new iSCSI subnet present in the same L2 switching fabric? In that case you just need a VLAN interface on the 10.0.0.x network. If it is in a separate switching fabric then you can add a couple extra NICs to your host and connect to that network.
Migration wise, as long as the XenServer host can mount SRs from both storage servers then it should be able to migrate your VMs and volumes across.
Regards,
Alex
-----Original Message-----
From: Alessandro Caviglione <c....@gmail.com>
Sent: 07 May 2021 10:22
To: users@cloudstack.apache.org
Subject: Primary storage migration
Hi guys,
I've a big doubt for next few weeks.
Actually we're running CS 4.13 and one of the cluster we're managing is based on xenserver 7.2.
Today, primary storage is provided through NFS share in 192.168.200.x subnet but we've want to migrate to another storage that provide iSCSI lun on 10.0.0.x subnet.
This iscsi subnet is an isolated subnet so no routing is possible.
What you suggests to do?
Is it possible to add a couple of nics to xenserver for iscsi and manage it on CS?
Thank you!