Simon's SQL

SQL,DBA,tuning,Trouble Shooting,Performance

Delayed Durability

Posted by Simon Cho on 02/14/2017

  • ALTER DATABASE SET DELAYED_DURABILITY = {option}
  • Disabled –Normal behavior durability guaranteed.(Default)
  • Allowed –Allowed at the DB Level, Transaction has to specify durability options, default is a durable transaction.
  • COMMIT TRAN……. WITH (DELAYED_DURABILITY=ON)
  • FORCED –Changes default durability for the DB to “delayed”. Can be useful for Applications bottlenecked on Log IO, that can tolerate some Data loss on a failure.

 

https://msdn.microsoft.com/en-us/library/dn449490(v=sql.120).aspx

 

http://info.tricoresolutions.com/blog/delayed-durability-diminishes-i/o-throughput-to-improve-performance-in-the-sql-query

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