Data Protection
Terminology
Terminology
Replication
• Provides Fault Tolerance
• A copy of data
– Point-in-Time copies
• Full copy of data stored on separate disks, logical unit, from the
original data
• Virtual copy of the data using pointers to the original data and only
replicating changed data.
– Relies on primary storage being available
– Real Time copies
– Synchronous Mirroring
– Full copy of data stored on separate disks, logical unit, from the
original data
– Data is acknowledged from both storage systems before
application moves on