Flash or SSD? Why and When to Use IBM FlashSystem
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Read this guide to learn about why and when to use FlashSystem storage and how it compares to other storage technologies such as hybrid arrays, PCIe Express products, and hard disk drives (HDDs). It also helps explain the differences between FlashSystem products, solid-state drives (SSDs), and other types of flash storage implementations.
FlashSystem products help minimize the total cost of ownership (TCO) for your storage. The small, 1U form factor allows you to place up to a petabyte of storage in a single rack. Low power draw (350 W or less) and efficient cooling minimize energy use. Durable and reliable designs use enterprise class flash. Enterprise reliability features include Variable Stripe RAID technology, which helps prevent chip failures, and two-dimensional raid. You can reduce expenses for software licensing and administrator time by integrating FlashSystem storage into your existing environment.
More traditional SSDs integrate flash chips into carrier devices with a hard drive form factor. These devices are inserted into storage arrays and must be controlled by software, which adds latency.
FlashSystem storage products have a hardware-only datapath. IBM MicroLatency, which is approximately 100-microsecond access time, enables faster decision making by facilitating an extreme-performance data path to accelerate critical applications and helps users achieve a true market-based competitive advantage.
You can order FlashSystem products individually or bundled with SVC to provide storage hypervising, Easy Tier capability, thin provisioning, mirroring and copy services, and real-time compression.