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NVMe SSDs: Is there a need for all this speed?
This article is part of the Storage magazine issue of March 2018, Vol. 17, No. 1
For many years, SAS and SATA HDDs have been the data center's media of choice. The introduction of NAND flash has pushed SAS and SATA devices to their performance limits due to restrictions of the storage protocol. To fully exploit flash, the storage industry created a new protocol -- nonvolatile memory express. This architecture lets storage array vendors and end users unlock the performance potential of both flash and new solid-state media, delivering better performance from NVMe SSDs and other storage devices. Protocol background Storage device protocols have evolved in both server and consumer-based devices. Advanced Technology Attachment (ATA) developed from PC architecture, which became PATA (Parallel ATA) and then SATA (Serial ATA) that we know today. SCSI was developed in the late 1970s as a server-based connection for HDDs and other storage devices like tape. All of this evolved into Serial-Attached SCSI, or SAS. SCSI is the underlying storage protocol for Fibre Channel-based SANs and iSCSI Ethernet networks. (We'll ...
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Features in this issue
Everything you should know to decide if nonvolatile memory express is right for your enterprise and, if it is, how to plan for the future of flash storage.
Enterprises turn to different products, technologies and tools to optimize primary storage, overcome data storage challenges and make networked storage deployments more efficient.
The latest iterations of ransomware aim to undercut backups as an effective method for recovering from attacks. Learn how to overcome this vulnerability.
Industrial espionage is on the rise, and more data means more risk. Find out how to control the growth of data stores and secure your organization's most valuable assets.
Columns in this issue
The European Union's General Data Protection Regulation has organizations worldwide rethinking storage management to their and their customers' benefit.
Monolithic storage rules the day in spite of the advent of software-defined storage, because vendors and enterprises ignore data storage history and discount experience.
The digital economy is increasingly defining business, and IT's relationship to business and the bottom line is becoming tied together more tightly.
Figuring out whether we're storing more data than ever because we're producing more data or because constantly evolving storage technology lets us store more of it isn't easy.