Does storage virtualization prevent data loss?

Kroll Ontrack, which is a data recovery and eDiscovery company in Minneapolis, shows a survey that 80% of all companies can eliminate or reduce the risk of data loss by placing the data in the virtual environment. Originally, virtualization is not intended to raise the level of data protection but it may make IT resources more efficient which means lower cost.


Actually, 40% of companies which introduce virtualization had experiences of data loss. Only 33% of them can recover the data.


Let us explain about how data protection can realize with below 4 protection levels.



Level Recovery time
Protectable Range

1. CDP

(Continuous Data Protection)




Equipment Breakdown


2. Snapshot, Clone


Seconds to Minutes

Equipment Malfunction

and Data Corruption


3. Remote Replication


Seconds to Hours

Equipment Malfunction, Data Corruption, Site Destruction and Natural Disaster

4. Offsite DR

with Tape Backup&Archive


Hours to Days

Equipment Malfunction, Data Corruption,

Site destruction, Natural Disaster,

User Error by operating mistakes, Virus, Hacker Attack and Software Bug



It is better to classify the data with the following three indicators and operate some combinations without having enough budgets.


  • Importance of Data
  • Impact of Downtime on Business
  • Cost