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Understanding Cascade Snapshot Cloning in Oracle Multitenant

Oracle Exascale supports sparse snapshots and fast cloning at the block level. With Cascade Snapshot Cloning, you can create a clone from another clone: Base PDB → Clone A → Clone B → Clone C This is useful when you need many database copies for development, testing, or migration. In this article, we will look…

Exadata Exascale VM Storage is Finally Available

Exadata Exascale VM Storage is officially available in our region! If you are setting up new environments in ExaCC or OCI , Oracle now strongly recommends deploying your VM clusters using an Exascale VM Storage Vault rather than traditional local compute storage. By completely decoupling your VM’s file system from the underlying physical server, this…

Ghost in the Datafile: Fixing “Empty Block” Corruption in Oracle

A common frustration for DBAs occurs after identifying a corrupted index or table. You drop the object, expecting the error to vanish, but RMAN backups still fail and Data Guard continues to report a gap. Even though the block is no longer part of a segment, it remains “physically” corrupted in the eyes of the…

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