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Preserving data while reinstalling OS and upgrading MapR

Question asked by tonywiningham on Jul 29, 2015
Latest reply on Jul 29, 2015 by mufeed
- Cluster has 120 disks with 235TB of data in MapR-FS to preserve
 - Systems currently have **MapR 4.0.1** on **CentOS 6.6**
 - System boot drives will be wiped and installed with **CentOS 7**
 - **MapR 5.0** will be installed

I was unable to find instructions to preserve data during a bare OS reinstall and am interested in anyone's insight.







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