A storage system uses SSDs as a secondary cache tier in front of traditional hard drives.What is the primary goal of this configuration?
Answer(s): A
Using SSDs as a secondary cache tier provides faster access to frequently requested data compared to traditional hard drives, significantly improving overall read performance in the storage system.
What type of disk devices are the highest performing and most expensive of all disk devices?
Answer(s): D
Storage Class Memory (SCM) devices deliver the highest performance and are the most expensive among disk devices, providing ultra-low latency and very high input/output operations per second (IOPS) compared to SSD, SAS, SATA, or FC disks.
What is the main advantage of a write-through operation in cache write I/O operations?
Answer(s): B
In a write-through cache operation, data is written to both the cache and the underlying storage before acknowledging the write to the host, minimizing the risk of data loss if a cache failure occurs.
In traditional provisioning, which two factors determine the availability, capacity, and performance of the RAID set? (Choose two.)
Answer(s): A,D
The RAID level defines the redundancy, performance, and fault tolerance characteristics, while the number of drives in the RAID set impacts both the available capacity and overall performance of the array.
A company needs to ensure high availability for its critical applications and minimize downtime in case of a disk failure. The current storage configuration is a RAID 0 array with SSDs.Which RAID level is the most cost effective and would provide the necessary data protection without significant performance degradation?
RAID 5 offers cost-effective data protection by using distributed parity, allowing the system to recover from a single disk failure while providing good read and write performance, especially with SSDs. This minimizes downtime and ensures high availability for critical applications.
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