Browse Definitions :
Definition

DWPD (device/drive writes per day)

Drive writes per day (DWPD) is an endurance rating that manufacturers of NAND flash storage provide their customers. Unlike hard disk storage, solid state storage has a limited number of write/erase cycles before the oxide layer within the storage device's floating-gate transistors begins to break down, a process known as flash wear-out. The DWPD rating tells the customer how many times he can expect to overwrite the entire capacity of the solid state drive before it becomes unreliable. 

DWPD will vary, depending upon whether the storage is intended for consumer or enterprise use. Consumer use solid state drives (SSDs) have a fixed endurance rating and capacity. Enterprise SSD manufacturers, on the other hand, may offer SSDs of varying endurance levels and capacities depending upon whether the workload will be read-intensive, write-intensive or mixed. For instance, a vendor might sell an enterprise SSD with a high-capacity option intended for read-intensive application workloads. Such a high-capacity enterprise SSD might offer an endurance of only one full DWPD, meaning the drive can write and rewrite data to full capacity once a day for the warrantied lifespan of the drive. Another enterprise SSD option from the same product family might support 25 DWPD at a lower capacity for use with write-intensive workloads. 

This was last updated in March 2016

Continue Reading About DWPD (device/drive writes per day)

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • compliance audit

    A compliance audit is a comprehensive review of an organization's adherence to regulatory guidelines.

  • regulatory compliance

    Regulatory compliance is an organization's adherence to laws, regulations, guidelines and specifications relevant to its business...

  • Whistleblower Protection Act

    The Whistleblower Protection Act of 1989 is a law that protects federal government employees in the United States from ...

SearchSecurity

  • data breach

    A data breach is a confirmed incident in which sensitive, confidential or otherwise protected data has been accessed and/or ...

  • zero-day (computer)

    A zero-day vulnerability, also known as a computer zero day, is a flaw in software, hardware or firmware that is unknown to the ...

  • Cybercrime

    Cybercrime is any criminal activity that involves a computer, networked device or a network.

SearchHealthIT

SearchDisasterRecovery

  • cloud insurance

    Cloud insurance is any type of financial or data protection obtained by a cloud service provider. 

  • business continuity software

    Business continuity software is an application or suite designed to make business continuity planning/business continuity ...

  • business continuity policy

    Business continuity policy is the set of standards and guidelines an organization enforces to ensure resilience and proper risk ...

SearchStorage

  • business impact analysis (BIA)

    Business impact analysis (BIA) is a systematic process to determine and evaluate the potential effects of an interruption to ...

  • RAID (redundant array of independent disks)

    RAID (redundant array of independent disks) is a way of storing the same data in different places on multiple hard disks to ...

  • dedicated cloud

    A dedicated cloud is a single-tenant cloud infrastructure, which essentially acts as an isolated, single-tenant public cloud.

Close