Data sanitization enables more sustainable data center ITAD

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Certified data sanitization allows for the safe reuse of IT assets. Devices such as servers, hard drives, and SSDs can be repurposed or resold, extending their life cycle and reducing the need to manufacture new products. This circular approach both conserves resources and cuts down on e-waste.

April 25, 20247  mins
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With the e-waste problem growing in scope and severity, data center managers need to broadly adopt sustainable practices to comply with corporate social responsibility initiatives and increasing environmental regulations. Data sanitization should be a core practice.

Sustainable IT asset disposition (ITAD) aims to minimize the environmental impact of disposing of IT equipment. When data center equipment reaches end of use, data sanitization ensures that sensitive information is securely removed before repurposing, reselling or disposal via recycling. This process not only reduces the risk of data breaches but also lessens the need for additional asset manufacturing, thus conserving resources and minimizing electronic waste.

Data sanitization is the deliberate, permanent removal of data from IT assets to prevent unauthorized access to sensitive information after asset retirement. These steps ensure that sensitive information like financial records, personally identifiable information, or intellectual property doesn't fall into the wrong hands.

What is data sanitization?

A device is considered sanitized when it has no recoverable data, even with advanced forensic tools. According to the International Data Sanitization Consortium, there are three ways to sanitize storage and memory devices.

All three methods are appropriate for use with hard disk drives. Solid state drives (SSD) must be erased with software built into most models' firmware or with specialized third-party tools. Memory devices should be wiped clean using specialized software that passes Test Level 2 of the Asset Disposal and Information Security Alliance Threat Matrix.

Data center managers should also be aware of data erasure methods that are not considered sufficient to qualify as sanitization.

  • Data deletion merely hides data until it's overwritten, leaving it recoverable.
  • Reformatting a disk doesn't fully erase its contents; data is usually recoverable using forensic tools.
  • Factory resets on devices like mobile phones and tablets remove user data and restore factory settings, but effectiveness varies by manufacturer.
  • Uncertified data wiping and file shredding don’t follow specific standards or provide formal proof of sanitization.

Documented destruction

Regardless of the method you use, sanitization should be documented. Analysts advise using an ITAD vendor that “provides a certificate of data destruction with a serialized inventory of the data-bearing assets sanitized.” The vendor should give you the right to audit its data sanitization processes and standards to ensure compliance with your needs.

The most sustainable and environmentally responsible data sanitization techniques are those that allow for the safe reuse of IT assets. Devices such as servers, hard drives, and SSDs can be repurposed or resold, extending their life cycle and reducing the need to manufacture new products. This circular approach both conserves resources and cuts down on e-waste.

In short, data sanitization is a win-win: It enhances data security while advancing a more sustainable IT lifecycle and can even yield revenue from resale. In some jurisdictions, it’s also the law.