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From "Michal Rodzos" <michal.rod...@cloudcentral.com.au>
Subject RE: DR in CloudStack ?
Date Wed, 04 Dec 2013 13:13:54 GMT
Hi Octavian,

In addition there is a lot of redundancy  built into the Virtual Router.
Good explanation available here
http://blogs.clogeny.com/understanding-the-redundant-virtual-router-in-citri
x-cloudplatform/

These articles provide pretty good overview of High Availability in
CloudStack:
http://blogs.clogeny.com/high-availability-disaster-recovery-for-apache-clou
dstack/ 
http://blog.remibergsma.com/2012/05/02/high-availability-with-automatic-fail
over-for-cloudstack-management-servers/ 

Regards,
Michal Rodzos
Solutions Architect

Phone: 1300 144 007 | Mobile: +61 421 834 204
| Skype: michal.rodzos | Twitter


-----Original Message-----
From: Geoff Higginbottom [mailto:geoff.higginbottom@shapeblue.com] 
Sent: Wednesday, 4 December 2013 11:08 PM
To: users@cloudstack.apache.org
Subject: RE: DR in CloudStack ?

Octavian,

Your Compute Offering needs to be flagged as HA Enabled, this will then
ensure that the VM will move to a new Host in the event of a Host failure.
(FYI if you put a Host into Maintenance Mode, all VMs are migrated,
regardless of their HA status)

To move VMs between Clusters, you need to move the storage first, so this is
not handled automatically.

However the latest version (4.2) now supports Zone Wide Primary Storage for
KVM and VMware so moving VMs between Clusters is possible if you are using
this type of storage configuration.

For XenServer you can use XenStorage Motion to live migrate VMs across
Clusters, but I believe this is initiated by Root Admins, and not after a HA
event.

Regards

Geoff Higginbottom

D: +44 20 3603 0542 | S: +44 20 3603 0540 | M: +447968161581

geoff.higginbottom@shapeblue.com

-----Original Message-----
From: Octavian Popescu [mailto:Octavian.Popescu@interoute.com]
Sent: 04 December 2013 12:02
To: users@cloudstack.apache.org
Subject: RE: DR in CloudStack ?

Hi Geoff,

Thanks, are there any specific features or options in regards to pure DR,
rather than HA? For instance, moving VMs between clusters, pods or zones?

Octavian

>-----Original Message-----
>From: Geoff Higginbottom [mailto:geoff.higginbottom@shapeblue.com]
>Sent: 04 December 2013 11:36
>To: users@cloudstack.apache.org
>Subject: RE: DR in CloudStack ?
>
>Octavian,
>
>CloudStack provides VM HA enabling VMs to fail-over to alternate Hosts 
>within the same Cluster so long as the VM is using Shared Storage.
>
>For XenServer and KVM, CloudStack initiates the HA failover when it 
>detects a Host has gone down.  For VMware, vCenter handles the HA event.
>
>Regards
>
>Geoff Higginbottom
>
>D: +44 20 3603 0542 | S: +44 20 3603 0540 | M: +447968161581
>
>geoff.higginbottom@shapeblue.com
>
>-----Original Message-----
>From: Octavian Popescu [mailto:Octavian.Popescu@interoute.com]
>Sent: 04 December 2013 10:28
>To: users@cloudstack.apache.org
>Subject: DR in CloudStack ?
>
>Hi,
>
>I would like to understand what kind of disaster recovery options are 
>provided by CloudStack in case of VM or host failures (e.g. can it do 
>failovers from a host to another? from a zone to another?)
>
>Thank you,
>Octavian
>
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This email and any attachments to it may be confidential and are intended
solely for the use of the individual to whom it is addressed. Any views or
opinions expressed are solely those of the author and do not necessarily
represent those of Shape Blue Ltd or related companies. If you are not the
intended recipient of this email, you must neither take any action based
upon its contents, nor copy or show it to anyone. Please contact the sender
if you believe you have received this email in error. Shape Blue Ltd is a
company incorporated in England & Wales. ShapeBlue Services India LLP is a
company incorporated in India and is operated under license from Shape Blue
Ltd. Shape Blue Brasil Consultoria Ltda is a company incorporated in Brasil
and is operated under license from Shape Blue Ltd. ShapeBlue is a registered
trademark.



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