[Info-vax] HP "cloud" disaster-recovery 'continuity solution' (... 90 minutes)

[Keith Parris]

On 8/21/2012 7:56 AM, Stephen Hoffman wrote:
> If you have a budget and can have a ~90 minute outage window, then
> paying big buckets of money for no downtime is a tradeoff you probably
> don't want to make.  You can use that "uptime" money on other products
> and services (and on development, for those still doing their own) that
> makes your business run better.

In the OpenVMS disaster-recovery world, I often find that once folks 
decide to spend the money to put in an inter-site network link of 
sufficient capacity for data replication, with some flavor of SAN 
Extension between sites so they can replicate disk data using Continuous 
Access, they might as well instead just use that same network and SAN 
Extension to set up a multi-site OpenVMS disaster-tolerant cluster, 
which can provide active-everywhere service across sites at no more 
expense (or often slightly less - HBVS is typically cheaper than 
Continuous Access, and with MSCP Service we can even do without the SAN 
Extension if desired) than a solution which involves a time-consuming 
and error-prone sequence of manual failover steps in the event of loss 
of one site.