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Posted to users@cloudstack.apache.org by Len Bellemore <Le...@ControlCircle.com> on 2013/10/07 12:37:44 UTC
question about snapshots and Windows Volume Shadow Copy
Hi Guys,
I've been asked if Cloudstack snapshots integrate in any way with Windows Volume Shadow Copy. I guess the question is really about what type of "backup" does cloudstack actually provide. Is it only crash consistent? I know with 4.2 we have VMWare snapshot support, which is a really great feature addition, but with XenServer, what are my options?
Thanks
Len
________________________________
IMPORTANT NOTICE. This electronic message contains information from Control Circle Ltd, which may be privileged or confidential. The information is intended for use only by the individual(s) or entity named above. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this information is strictly prohibited. If you have received this electronic message in error, please notify me by telephone or email (to the number or email address above) immediately. Activity and use of the ControlCircle e-mail system is monitored to secure its effective operation and for other lawful business purposes. Communications using this system will also be monitored and may be recorded to secure effective operation and for other lawful business purposes
Re: question about snapshots and Windows Volume Shadow Copy
Posted by David Comerford <da...@gmail.com>.
Can't say I've tried it personally but the docs for XS 6.1 say that Tools
does have support for VSS but it's not enabled by default? Odd.
http://docs.vmd.citrix.com/XenServer/6.1.0/1.0/en_gb/guest.html#windows_vssdrivers
Best regards,
David Comerford
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On 7 October 2013 22:39, Adrian Lewis <ad...@alsiconsulting.co.uk> wrote:
> No answers I'm afraid Len but keen to hear what the definitive answer is
> regarding Xen guests. Anyone?
>
> -----Original Message-----
> From: Kelven Yang [mailto:kelven.yang@citrix.com]
> Sent: 07 October 2013 19:10
> To: users@cloudstack.apache.org
> Subject: Re: question about snapshots and Windows Volume Shadow Copy
>
>
>
> On 10/7/13 3:37 AM, "Len Bellemore" <Le...@ControlCircle.com>
> wrote:
>
> >Hi Guys,
> >
> >I've been asked if Cloudstack snapshots integrate in any way with
> >Windows Volume Shadow Copy. I guess the question is really about what
> >type of "backup" does cloudstack actually provide. Is it only crash
> consistent?
>
> It is only crash consistent. But with VMware, if guest OS (Windows server)
> has VSS enabled and VMware tools is installed in the guest OSS. Quiesce
> event will be notified to applications that are running in the guest
> before snapshot is taken.
>
>
> >I know with 4.2 we have VMWare snapshot support, which is a really
> >great feature addition, but with XenServer, what are my options?
>
> Not sure about XenServer, I think it is crash consistent only
>
> >
> >Thanks
> >Len
> >
> >________________________________
> >IMPORTANT NOTICE. This electronic message contains information from
> >Control Circle Ltd, which may be privileged or confidential. The
> >information is intended for use only by the individual(s) or entity
> >named above. If you are not the intended recipient, be aware that any
> >disclosure, copying, distribution or use of the contents of this
> >information is strictly prohibited. If you have received this
> >electronic message in error, please notify me by telephone or email (to
> >the number or email address above) immediately. Activity and use of the
> >ControlCircle e-mail system is monitored to secure its effective
> >operation and for other lawful business purposes. Communications using
> >this system will also be monitored and may be recorded to secure
> >effective operation and for other lawful business purposes
>
RE: question about snapshots and Windows Volume Shadow Copy
Posted by Adrian Lewis <ad...@alsiconsulting.co.uk>.
No answers I'm afraid Len but keen to hear what the definitive answer is
regarding Xen guests. Anyone?
-----Original Message-----
From: Kelven Yang [mailto:kelven.yang@citrix.com]
Sent: 07 October 2013 19:10
To: users@cloudstack.apache.org
Subject: Re: question about snapshots and Windows Volume Shadow Copy
On 10/7/13 3:37 AM, "Len Bellemore" <Le...@ControlCircle.com>
wrote:
>Hi Guys,
>
>I've been asked if Cloudstack snapshots integrate in any way with
>Windows Volume Shadow Copy. I guess the question is really about what
>type of "backup" does cloudstack actually provide. Is it only crash
consistent?
It is only crash consistent. But with VMware, if guest OS (Windows server)
has VSS enabled and VMware tools is installed in the guest OSS. Quiesce
event will be notified to applications that are running in the guest
before snapshot is taken.
>I know with 4.2 we have VMWare snapshot support, which is a really
>great feature addition, but with XenServer, what are my options?
Not sure about XenServer, I think it is crash consistent only
>
>Thanks
>Len
>
>________________________________
>IMPORTANT NOTICE. This electronic message contains information from
>Control Circle Ltd, which may be privileged or confidential. The
>information is intended for use only by the individual(s) or entity
>named above. If you are not the intended recipient, be aware that any
>disclosure, copying, distribution or use of the contents of this
>information is strictly prohibited. If you have received this
>electronic message in error, please notify me by telephone or email (to
>the number or email address above) immediately. Activity and use of the
>ControlCircle e-mail system is monitored to secure its effective
>operation and for other lawful business purposes. Communications using
>this system will also be monitored and may be recorded to secure
>effective operation and for other lawful business purposes
Re: question about snapshots and Windows Volume Shadow Copy
Posted by Kelven Yang <ke...@citrix.com>.
On 10/7/13 3:37 AM, "Len Bellemore" <Le...@ControlCircle.com>
wrote:
>Hi Guys,
>
>I've been asked if Cloudstack snapshots integrate in any way with Windows
>Volume Shadow Copy. I guess the question is really about what type of
>"backup" does cloudstack actually provide. Is it only crash consistent?
It is only crash consistent. But with VMware, if guest OS (Windows server)
has VSS enabled and VMware tools is installed in the guest OSS. Quiesce
event will be notified to applications that are running in the guest
before snapshot is taken.
>I know with 4.2 we have VMWare snapshot support, which is a really great
>feature addition, but with XenServer, what are my options?
Not sure about XenServer, I think it is crash consistent only
>
>Thanks
>Len
>
>________________________________
>IMPORTANT NOTICE. This electronic message contains information from
>Control Circle Ltd, which may be privileged or confidential. The
>information is intended for use only by the individual(s) or entity named
>above. If you are not the intended recipient, be aware that any
>disclosure, copying, distribution or use of the contents of this
>information is strictly prohibited. If you have received this electronic
>message in error, please notify me by telephone or email (to the number
>or email address above) immediately. Activity and use of the
>ControlCircle e-mail system is monitored to secure its effective
>operation and for other lawful business purposes. Communications using
>this system will also be monitored and may be recorded to secure
>effective operation and for other lawful business purposes