
Replication has become key to most data protection strategies. We see most organisations in the Open System space using replication and deduplication to get data off site. This gives these companies an advantage when it comes to Recovery Time Objective (RTO), as the need for tape and a manual recovery process is alleviated. However the Recovery Point Objective (RPO) will only be as good as the last time a backup was run, which in the open system space in usually only once a day.
When we look however at the Mainframe space we often see the use of backup to enable data processing and therefore are run multiple times in the day. To speed this process up many organisations now use Virtual Tape Libraries (VTL’s) instead of tape. This certainly helps with the RTO, as the data can be recovered very quickly from the disk system. Most of this data is also usually business critical so DR and Replication are often used. But remember your RPO will only be as good as your last backup which is why most Mainframe analysts will be keen not only to backup as often as possible but also to get data off site as quick as possible.
For this reason EMC have just released an industry first and given the DLm8000 synchronous replication. For more information on this please refer to this Press Release.
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