BACKUP/MASTER: Replication

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BACKUP/MASTERReplication

• Dorian CougiasCEO
• Network Frontiers

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An overview of replication

• What is being replicated?
• Volume
• File-based
• Database-based

• How it is being replicated?
• Asynchronously
• Synchronously
• Timed push or pull
• Caching

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Anatomy of a database

• Tables of information
• Index of tables
• Transaction Log for repair in the event of
  failure
• Cache that sits in RAM

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Database backup
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Restore from tape/disk after a crash
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Asynchronous replication
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Non-consistent operation
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Fast recovery
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Synchronous replication
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Non-consistent operation
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Transfer to secondary host
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Volume and file-based replication
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Block level replication (BLR)
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BLR (2)
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BLR (3)
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File-based replication
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Assured security issues
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