ABSTRACT

Continuous Data Protection (CDP) journaled replication of data could enter new realms of utility in all-flash storage systems. With the journals held on flash, and snapshots allowing for access to the journaled data at any time-stamp, some systems may be switched away from backup and recovery for short-term retention. The transfer speed from flash storage even factoring rehydrating the data for a read operation substantially outstrips that of a normal read from hard drive based storage. Flash storage will likely drive much higher adoption of source deduplication technology it will be imperative to keep pushing down the network capacity required for backup data transfer, otherwise backing up all-flash hosted data will be a tedious and slow process. Flash storage was initially introduced into primary storage via tiering as data was more frequently accessed it would be promoted up from traditional disk storage onto flash storage to speed up operations against it, and the reverse would occur when the data was no longer being frequently accessed.