Open Stack

Hi Fausto,
where can I find information about implemented and currently working
functionalities?

Thank you,
Giuseppe





2015-07-07 13:28 GMT+02:00 Marzi, Fausto <fausto.marzi at hp.com>:

> Hi Giuseppe, Avishay, all,
>
> In the Company where I'm currently working on, there are 4 Engineers full
> time dedicated to Freezer.
>
> Your consideration Avishay make totally sense. There are also other points
> that probably needs to be taken in consideration for DR as:
>
> - Backup and restore synchronized across multiple services:
> This is important, as for instance Nova depends on many other OS service
> (i.e. cinder, glance, etc).
>
> - When users execute a backup of a VM, it is also expected that the Cinder
> Volumes, the images and the users/tenants can also be point-in-time restored
>
> - It is important to be able to restore data, even if any one of the OS
> Services is down (i.e. Keystone or Swift are not available).
>
> - The orchestration between Nova and Cinder to execute full VM + Cinder
> backups is important
>
> - Have a unified API and Web UI in Horizon is also a nice to have
>
> These and more are the challenges that in the Freezer Team we are solving.
>
> Being totally honest, Freezer has been used to backup many services in a
> reasonably big OpenStack instance for a year now.
> However, it's only 6 months there's a dedicated Team working on it, so
> many things still needs to be done.
>
> For any real time interaction, we are in #openstack-freezer on Freenode ,
> so feel free to say Hi if you are around : )
>
> Contributors are most welcome.
>
> Thanks,
> Fausto
>
> -------- Forwarded Message --------
> Subject:        Re: [Openstack] [OpenStack] [Disaster Recovery] How can
> you do
> it?
> Date:   Tue, 7 Jul 2015 11:44:17 +0200
> From:   Giuseppe Galeota <giuseppegaleota at gmail.com>
> To:     Avishay Traeger <avishay at stratoscale.com>
> CC:     openstack at lists.openstack.org <openstack at lists.openstack.org>
>
>
>
> Thank you all.
> What can you tell me about the following projects:
>
> - https://wiki.openstack.org/wiki/Raksha
> - https://github.com/stackforge/freezer
>
> Will they become OpenStack project?
>
> Thanks,
> Giuseppe
>
> 2015-07-06 21:33 GMT+02:00 Avishay Traeger <avishay at stratoscale.com
> <mailto:avishay at stratoscale.com>>:
>
>     As David mentioned, there is a spectrum of possible solutions for
>     disaster recovery.  The solution, as always, depends on the
>     requirements.  In disaster recovery, those requirements are
>     expressed as:
>     1. RPO - Recovery Point Objective - "If a disaster strikes, how far
>     back will it set me?"
>     2. RTO - Recovery Time Objective - "If a disaster strikes, how long
>     until my workload is up and running?"
>
>     The answers to both are independent and can range from "Not at all"
>     to minutes or hours or days.
>
>     A solution with high RPO and RTO is backup.  Once in a while
>     transfer your images, snapshots of your VMs and volumes, and your
>     SQL DB to another site.  If disaster strikes you can manually run
>     your workloads from the last backup, and you have your metadata
>     backed up too (keystone users/tenants, nova flavors, etc.).
>
>     A solution with lower RPO and RTO is replication. Work is being done
>     in Cinder to enable continuous volume replication between storage
>     backends.  You can put your Glance images in multiple locations or
>     in multi-site Swift, and replicate your DB as well.  Ideally you
>     will be able to get to some consistent state between your data and
>     metadata, which is not easy.  For failover, you can use Heat or some
>     other orchestration tool.
>
>     There are solutions with zero RPO and RTO, where workloads run
>     active/active in multiple sites.  There are also other solutions in
>     the spectrum.
>
>     In short, the building blocks are starting to appear, but a full
>     solution is not yet available.
>
>
>     On Mon, Jul 6, 2015 at 8:08 PM, David Medberry
>     <openstack at medberry.net <mailto:openstack at medberry.net>> wrote:
>
>         Yes.
>
>         http://docs.openstack.org/openstack-ops/content/snapshots.html
>         API Image Create detailed here:
>
>         Nova:
>         http://developer.openstack.org/api-ref-compute-v2.1.html
>         It is a snapshot of the instance's image (not of the instance's
>         in memory state).
>
>         Cinder:
>         http://developer.openstack.org/api-ref-blockstorage-v2.html
>
>         http://lmgtfy.com/?q=nova+image+create+api
>         http://lmgtfy.com/?q=cinder+snapshot+api
>
>
>         On Mon, Jul 6, 2015 at 11:02 AM, Giuseppe Galeota
>         <giuseppegaleota at gmail.com <mailto:giuseppegaleota at gmail.com>>
>         wrote:
>
>             Thank you David,all,
>
>             I would like to know if are there Nova/Cinder Rest APIs to
>             execute VM/volume snapshot?
>
>             Thank you all,
>             Giuseppe
>
>             2015-07-06 18:40 GMT+02:00 David Medberry
>             <openstack at medberry.net <mailto:openstack at medberry.net>>:
>
>                 Giuseppe,
>
>                 A great deal of Disaster Recovery planning relies on you
>                 / your organization to define what they mean by DR
>                 planning. Yes, Nova snaps (instance snaps) and Cinder
>                 snaps (volume snaps) can be used in DR. Additionally,
>                 depending on your architecture you can utilize Swift (if
>                 it is geo distributed, it gives you some measure of DR
>                 resilience.)
>
>                 I'm not aware of a howto or manual on this topic though
>                 as it varies so much based on arch and definition it's
>                 not effective to make a generalized recommendation.
>
>                 On Mon, Jul 6, 2015 at 10:02 AM, Giuseppe Galeota
>                 <giuseppegaleota at gmail.com
>                 <mailto:giuseppegaleota at gmail.com>> wrote:
>
>                     Dear all,
>                     how can I implement a Disaster Recovery plan in
>                     OpenStack? Is there some project?
>
>                     Can I use the Nova/Cinder APIs to create snapshot
>                     and upload them somewhere?
>
>                     Thanks,
>                     Giuseppe
>
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>
>
>     --
>     *Avishay Traeger*
>     /Storage R&D/
>
>     Mobile:+972 54 447 1475
>     E-mail: avishay at stratoscale.com <mailto:avishay at stratoscale.com>
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