- Notes, cautions, and warnings
- Introduction
- Revision history
- PowerFlex overview
- System requirements and product limits
- Architecture
- System
- MDM cluster
- Virtual IP addresses
- Storage definitions
- Storage pools
- Acceleration pools
- Data layout
- Volumes
- Naming PowerFlex objects
- NVMe over TCP overview
- PowerFlex file services
- Replication
- Replication peer systems
- Storage data replicator
- Journal
- Replication consistency group
- Replication pairs
- Recovery point objective
- Replication I/O flow
- Replication auto-provision
- Replication initial copy
- Activating or terminating a replication consistency group
- Pause replication
- Using replicated volumes
- Accessing target volumes
- Setting up replication
- Dell APEX Block Storage
- Protection and load balancing
- Cache
- Networking
- SDC connection monitoring
- SMART hardware monitoring
- Snapshots
- Performance
- Migrating volumes
- Implementing PowerFlex
- Additional functions
- Maintenance
- PowerFlex management
- Configure direct attached storage
Dell PowerFlex 4.5.x Technical Overview
Journal
SDRs use the journal to hold the replication data.
The source SDRs accumulate the data changes in the journal until sending them to the target. The target SDRs accumulate received data in the target journal until a complete consistent image is received and can be applied to the target volumes.
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