The best replacement for exadata is exalogic.

The best alternatives to exadata are rated as following:
★★★★★  exalogic
★★★★  netezza
★★★  teradata
★★★  hana
★★★  vblock
★★  rac
★★  supercluster
★★  oracle 11g
★★  greenplum
★★  exalytics
★  oda
★  vce
★  vertica
  superdome
  sap hana

Your alternative for exadata is not listed? Suggest!
Speaking about exadata, one probably shouldn't forget about netbackup.

Other search terms related to exadata and their ratings are:
★★★★★ netbackup
You have in mind a companion for exadata and it is not yet here? Propose!



Google Trends

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exadata
exalogic
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