An overview of High Availability and Disaster Recovery solutions available for SQL Server

http://blogs.msdn.com/b/sql_pfe_blog/archive/2013/06/15/an-overview-of-ha-dr-solutions-available-for-sql-server.aspx

1.     RPO/RTO capabilities of each feature, from Microsoft SQL Server AlwaysOn Solutions Guide for High Availability and Disaster Recovery

Batch script -- to find the directory/folder exist or not

set CurrentDirectory='c:\mssql'

if exist %CurrentDirectory% (
ECHO  directory %CurrentDirectory%  exist s
        set  CurrentDirectory=%CurrentDirectory%\data
 goto  createdb

) else (
      Echo directory %CurrentDirectory%  does not exists.
)
:createdb
echo createdb loop