Hotsos 2013 A personal Touch 3/4 – Third Day

After having a good sleep I attended the first session in the morning from George Djerdj Srdanov with a presentation called “How to Get the Most Out of Your I/O Subsystem?”. George dived deep into the I/O subsystem, with the following important subjects:

  • Different RAID configurations (Read and Write penalties)
  • SSD usage
  • SAN configuration
  • Block alignment and recommendation
George Djerdj Srdanov presenting at Hotos 2013

George Djerdj Srdanov presenting at Hotos 2013

The presentation was good and triggered me to check some things at a customer I am currently working for. In the customer case the block alignment in regard of the online redolog files might be a point of investigation. Continue reading