HP0-J67 · Question #125
You are designing a new storage solution for a customer that must have the ability to reserve areas of cache memory for frequently accessed data for specific host LUNS. Which HP Storage system…
The correct answer is C. HP 3PAR StoreServ 10000. To meet the customer's requirement for reserving cache memory areas for specific host LUNs, the HP 3PAR StoreServ 10000 is the recommended system due to its advanced Quality of Service (QoS) and optimization features.
Question
You are designing a new storage solution for a customer that must have the ability to reserve areas of cache memory for frequently accessed data for specific host LUNS. Which HP Storage system should you recommend to meet the customer requirements?
Options
- AHP XP P9500
- BHP EVA P6550
- CHP 3PAR StoreServ 10000
- DHP StoreVirtual 4530
How the community answered
(47 responses)- A9% (4)
- B2% (1)
- C87% (41)
- D2% (1)
Why each option
To meet the customer's requirement for reserving cache memory areas for specific host LUNs, the HP 3PAR StoreServ 10000 is the recommended system due to its advanced Quality of Service (QoS) and optimization features.
The HP XP P9500 (Hitachi VSP-based) typically uses a global cache management system and does not offer explicit cache partitioning for individual LUNs in the same granular way as 3PAR's advanced QoS features.
HP EVA P6550 systems utilized a global cache architecture and did not provide the functionality to reserve specific cache areas for individual LUNs.
The HP 3PAR StoreServ 10000 series includes advanced features like Priority Optimization, which allows administrators to define and enforce service level objectives, including performance characteristics for specific volumes or LUNs. This capability effectively manages and prioritizes the use of cache resources, among others, to ensure consistent performance for critical applications that require dedicated resources.
HP StoreVirtual 4530, a scale-out platform, uses a distributed cache across nodes but lacks the capability to reserve specific cache partitions for individual LUNs as requested.
Concept tested: Storage array cache prioritization and QoS
Source: https://hpe.com/psnow/doc/a00006764en_us.pdf
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