[cisco-voip] Disaster Recovery site

[Craig Staffin]

Lelio,
IPCC expressly states the same LAN.  However Unity I don't think states same
LAN (I could be wrong).  As long as you are on a high bandwith MAN you
should be fine.  Just forget to mention that fact when you open a TAC case
:)

I can say that I have Unity with HA working with about 4000 subscribers over
an MPLS network.  Between servers is around 12ms RTT.  The actual bandwith
of the link is a 20MB link.

So far we have seen no issues with it

Craig

On Tue, Oct 21, 2008 at 5:43 PM, Lelio Fulgenzi <lelio at uoguelph.ca> wrote:

> I'll second what Craig said. In fact, I started a reply and cancelled it
> because I couldn't remember the terminology! ;)
>
> That being said, I think both Unity and IPCCx (IPCCx for sure) plainly
> state that HA pairs have to be on the same switch (unless that has recently
> changed). It's no big surprise that the UC components have been taking a
> while to match other Cisco failover/security technology.
>
> It all depends on what is available and what you are prepared to do.
>
> ---
> Lelio Fulgenzi, B.A.
> Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
> (519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> "Bad grammar makes me [sic]" - Tshirt
>
>
>
> ----- Original Message -----
> From: "Craig Staffin" <craig at staffin.org>
> To: "Scott Voll" <svoll.voip at gmail.com>
> Cc: cisco-voip at puck.nether.net
> Sent: Tuesday, October 21, 2008 5:58:16 PM GMT -05:00 US/Canada Eastern
> Subject: Re: [cisco-voip] Disaster Recovery site
>
> Scott,
> Honestly most business I deal with have moved away from DR and moved to a
> business continuity plan.  Although it sounds the same DR typically means
> restoring from backup with an acceptable window of downtime.  However a
> Business continuity plan is more of a Warm or Hot standby type environment.
>
> With that being said CCM, Unity and IPCC all support a failover type
> situation that would serve you far better than trying to restore from a
> backup.
>
> I can tell you that restoring CM from a backup takes a few hours minimum so
> you are looking at a long day to even think about getting just the phone
> system up and functioning.
>
> For the price take a look at getting the HA licenses for Unity and IPCC.
>  CM would just be another node license
>
> Craig
>
> On Tue, Oct 21, 2008 at 4:31 PM, Scott Voll <svoll.voip at gmail.com> wrote:
>
>> I have CM / UCCx / etc all housed here.  we are working on a DR plan.  I
>> have MCS servers that I'm planning on housing at a remote site where the ISP
>> will relocate MAN services in the case of a Disaster (fire is the worst
>> case)  my plan is to Backup to storage at this DR site so in the case of a
>> fire I would just drive to the DR site and restore the backup.
>>
>> All sounds great, but how do you install the CM cluster(UCCx, Unity, CER
>> etc).  Do I have to buy new licensing or not?  I can't remember if I can
>> install CM second node without the license file? in the case of the disaster
>> (fire) am I going to be stuck waiting on cisco licensing?
>>
>> What are others doing?  Should I be rethinking DR?
>>
>> Thanks
>>
>> Scott
>>
>> **DR = Disaster recovery
>>
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>>
>>
>
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