Hewlett Packard Enterprise PCA Enhanced Cache

Hewlett Packard Enterprise PCA Enhanced Cache is a storage optimization module designed to accelerate data access for HPE environments. The PCA Enhanced Cache combines high-capacity memory and NVMe disk technology to reduce latency and improve read/write throughput for demanding workloads. It integrates with HPE management and services to provide a scalable cache layer for servers and storage arrays.

Advantages

The PCA Enhanced Cache delivers a balance of large memory capacity and fast NVMe devices to shorten response times and increase I/O efficiency. Its architecture supports transparent caching for frequently accessed data and reduces backend storage load. Compatibility with HPE management tools simplifies deployment and monitoring, while the use of 2.5" NVMe drives ensures compact physical footprint with enterprise-class performance.

Suitable for

• Database acceleration and in-memory caching for transactional systems
• Virtualization platforms requiring low-latency storage access
• High-performance computing and analytics workloads
• Backup staging and temporary high-throughput buffer layers

Key specifications

• Maximum memory support: up to 64 TB
• Drive type: 2.5" NVMe devices
• Function: hardware-accelerated cache layer for storage systems
• Integration: compatible with HPE storage management and services
• Form factor: compact server/storage module design using 2.5" drives

How to use

Install the PCA Enhanced Cache module according to HPE installation guidelines and connect it to the supported server or storage array. Configure the cache policies through the HPE management interface to define hot data promotion, eviction rules and write-back or write-through behaviour. Monitor performance metrics and adjust cache size allocations to match workload patterns for optimal latency and throughput.

Usage recommendations

Allocate cache capacity based on working set size and workload characteristics; for read-heavy applications prioritize larger memory allocation, while mixed or write-heavy workloads may benefit from tuning write policy settings. Regularly update firmware and use HPE management tools to track health and performance. For scalable deployments, plan cache capacity growth aligned with storage and compute expansion.