When designing a system to support Oracle OLAP Workload for a new customer with no I/O details, what are the default selections for the I/O profile input in sizer?
- Sequential Read: 70% at 8 KiB Sequential Write: 30% at 8 KiB
- Random Read: 70% at 8 KiB Random Write: 30% at 8 KiB
- Sequential Read: 80% at 8 KiB Sequential Write: 20% at 8 KiB
- Random Read: 50% at 32 KiB Random Write: 50% at 32 KiB
Answer(s): B
Explanation:
When designing a system to support an Oracle OLAP (Online Analytical Processing) Workload for a new customer without specific I/O details, the default selections for the I/O profile input in the sizer tool are typically set to "Random Read: 70% at 8 KiB, Random Write: 30% at 8 KiB." Here's a detailed explanation:
Oracle OLAP Workload Characteristics: OLAP workloads generally involve heavy read operations with a focus on retrieving and analyzing large datasets. The read operations are often random due to the nature of querying various parts of the data.
Default I/O Profile Selection:
Random Read: 70% - This reflects the high read intensity typical of OLAP workloads, where data is accessed non-sequentially.
Random Write: 30% - Although less frequent than reads, writes still occur randomly as new data is added or existing data is updated.
Sizer Tool Configuration: The Dell sizer tool uses these default I/O profile settings to estimate the required storage performance and capacity. This helps in designing a system that can handle the expected workload efficiently.
Performance Optimization: The chosen I/O profile ensures that the storage system is optimized for the specific access patterns of OLAP workloads, providing a balanced approach to handling both reads and writes.
Reference:
Dell Technologies PowerStore Documentation
Dell Entry-Level and Mid-Range Storage Community
Dell Storage Products Overview
By understanding the default I/O profile settings used by the sizer tool, system designers can ensure that the storage solution is well-suited to meet the demands of Oracle OLAP workloads.
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