mirroring and alwayson


how mirroring and alwayson are diferent. What are various types of mirroring. what are advantages of each.

what i rpo and rpt and ms hcl means
please advise
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Mirroring "Database mirroring provides protection for a single-user database to one secondary mirror server."

AlwaysOn Failover Clustering Instances (FCI) are designed to provide server/instance level protection from both planned and unplanned downtime.

Two servers required regardless.

compare doc:
HCL - Hardware Compatibility List, also see :  Windows Compatible Products List :  https://sysdev.microsoft.com/en-us/hardware/lpl/

Recovery Point Objective(RPO)

Recovery Time Objective (RTO)

From:  http://sqlserver-dba.co.uk/sql-server-administration-basics/sql-server-rpo-rto
Vitor MontalvãoMSSQL Senior EngineerCommented:
Mirroring is deprecated since SQL Server 2012 and it has been replaced by SQL Server AlwaysOn feature that really appeared on SQL Server 2012.
Maybe the biggest difference is that you can't access a mirrored database replica, thing that you can with AlwaysOn.
Other big difference is that you access an AlwaysOn database replica by using a listener and not direct SQL Server instance name.

what i rpo and rpt and ms hcl means
Did you try to google it before asking here?
I also don't think that you want to refer to rpt but rto, right?
So read this Wikipedia article: https://en.wikipedia.org/wiki/Recovery_point_objective

About MS HCL, as far as I know, they are 2 companies: Microsoft and HCL. Maybe if you contextualize us, we will help you better.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Vitor MontalvãoMSSQL Senior EngineerCommented:
Recommendation to close this question by accepting the above comments as solution.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.