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.

Mirrored protection is local to a single system and is distinct from cross-site mirroring or geographic mirroring. Mirrored protection works to prevent outage on the system by keeping a second copy of the data on a mirrored disk unit. If one disk unit fails, the system relies on the mirrored disk unit.

• Mirrored protection concepts
  Mirrored protection is a software availability function that protects data from being lost because of failure or because of damage to a disk-related component. Data is protected because the system keeps two copies of data on two separate disk units.

• Planning for mirrored protection
  Successfully plan for protecting your disks with mirrored protection.

• Setting up mirrored protection
  Protect your disk units by setting up your system with mirrored protection.

• Managing mirrored protection
  Refer to this topic to see the tasks that you can perform to manage your disk protection activities.

 

Parent topic:

Disk protection types

Related concepts
Basic disk pools RAID 5 concepts Managing geographic mirroring

Related tasks
Stopping device parity protection