Oracle Exadata Exascale: Big architecture shift for small workloads | Computer Weekly
Briefly

Since its X8M appliances became available, Oracle has connected servers to storage via RoCE networking, and Oracle's storage servers are equipped with its XRMEM memory, accessed via RDMA from NVMe drives and HDDs to form three tiers of storage: hot, warm, and cold.
Now, a common pool of Exascale compute and storage will take charge of thousands of tenants and millions of databases.
But with Oracle ASM, each file type is shared per each group of drives associated with the database, ensuring redundancy and separation of data.
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