Causes of Database Down Time

Causes of Unplanned Down Time

Ø  Software failures

·         Operating system

·         Database

·         Application

·         Network

·         Middleware

Ø  Hardware failures

·         Memory

·         CPU

·         Power Supply

·         Disk

·         Tape

·         Bus

·         Controllers

·         Network

·         Power

Ø  Human errors

·         Operator Error

·         User Error

·         DB Admin Error

·         System Admin Error

·         Sabotage

Ø  Disasters

·         Earthquake

·         Flood

·         Fire

·         Power Failure

·         Bombing

Causes of Planned Down Time

Ø  Routine operations

·         Backups

·         Performance mgmt

·         Security mgmt

·         Batches operations

Ø  Periodic maintenance

·         Storage maintenance

·         Schema management

·         Operating system

·         Initialization parameters

·         Software patches

·         Middleware

·         Network

Ø  New deployments

·         DB upgrades

·         OS upgrades

·         HW upgrade

·         Middleware upgrades

·         App upgrades

·         Net upgrades