The Role of Data Reduction in a Flash Environment

Stretching a Dollar

In order to maximize capacity and bring down the cost per GB, vendors in this space generally include comprehensive deduplication technology that can have a major positive impact on capacity. Even better, data reduction technologies in all flash systems also serve to extend the life of the flash media itself. Here’s why: when data is deduplicated, it doesn’t need to be written … [Read more...]

PCIe-Based Flash Storage Devices

PCIcardgeneric

As the name suggests, PCIe-based flash storage devices plug right into one of the PCIe slots in a system.  The PCIe bus is electrically very close to the memory and CPU in a server, which enables these flash systems to achieve extremely high throughput and I/O rates and enjoy very low levels of latency.  Given that latency is enemy number one in a storage system, this is a … [Read more...]

DIMM-based Flash Storage

dimmslots-sm

SSDs in the form of SAS/SATA disks and PCI-e cards are really fast, especially when compared with the relative turtle in the storage speed race: the spinning disk.  However, some SSDs still have latency figures that can measure into three digit microseconds, which is a lifetime for some applications, such as those that support high frequency trading.  This is where Memory … [Read more...]

Introduction to Hybrid Storage Arrays

zipper

Hybrid storage arrays leverage a combination of spinning disk and flash disks to create systems that feature many of the performance benefits of flash coupled with the capacity benefits inherent in disk-based systems.  Remember, even as the cost of flash comes down, hard drive manufacturers continue to push physical limitations to increase the data density of spinning disks.  … [Read more...]

SAS/SATA-based Flash Storage Devices

Motherboard SATA socket

The typical hard drive form factor – either 3.5” or 2.5” in physical size – is one the most popular form factors in which to deploy flash storage as well.  This is no surprise given that flash disks are often used on server hardware as storage vendors have embraced the use of commodity hardware as their platforms of choice.  These devices, like hard drives, sport either SAS or … [Read more...]