Data store
MSDP stores data segments from a backup data source in an efficient way to minimize fragmentation and to provide sustainable performance over time at scale.
Good data locality is maintained over time through the following techniques:
Manage space from multiple file systems created from high performance RAID storage system for high capacity and high parallel file operations. New file systems may be created and added to the pool when additional storage is added.
Minimize the number of writes-per-file-system to reduce file system fragmentation and improve space allocation.
Create a small percentage of segment duplicates by gathering scattered segments among data containers into a single container to reduce image-level segment fragmentation.
Improve restore performance with read-ahead prefetching techniques based on optimized segment read sequences.