Disk protection types

 

Plan which methods you need to use to protect your data.

• Device parity protection
  Device parity protection uses a data redundancy technique that protects data by spreading the parity data across multiple disk units in the parity set. When a failure occurs on a disk unit that has device parity protection, the data is reconstructed.

• Write cache and auxiliary write cache IOA
  This topic describes how write cache and auxiliary write cache works.

• Mirrored protection
  Mirrored protection is beneficial if you have a multibus system or a system with a large single bus. A greater number of disk units provides more opportunity for failure and increased recovery time.

• Multipath disk units
  Multiple connections can be defined from multiple Input/Output Adapters (IOAs) on a system to a single logical unit number (LUN) in the Enterprise Disk Storage.

 

Parent topic:

Disk protection