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New Technology: Solid State Hard Drives, Considerations & Concerns. Brian Easter TASC Security Certification Services November 2013. Overview. Solid State Drives – What they are, why we care Advantages Concerns (SSD Test Video, time allowing). You Can’t Manage Risks You Don’t Understand.
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New Technology:Solid State Hard Drives,Considerations & Concerns Brian Easter TASC Security Certification Services November 2013
Overview • Solid State Drives – What they are, why we care • Advantages • Concerns • (SSD Test Video, time allowing) You Can’t Manage Risks You Don’t Understand
Solid State Drives (SSD) What are they? • Non-volatile Flash memory • No Moving Parts • Standard HD interface • Shock-resistant, silent, low power draw • Outperforming Hard Drives now, and still getting faster
SSD Speed Intel X25 SSD WD Caviar Black HD
SSD Speed – Potential Super Talent – SSD Using PCIe Interface Read Speeds WD HD = .7 Gb/s Intel SSD = 1.9 Gb/s RAIDDrive = 19.2 Gb/s DDR2 1066 SDRAM = 66 Gb/s
SSD Flash Controller Issues • Hard Drive Formatting uses tracks, sectors • SSD formatting uses memory cells, pages, blocks • OS uses HD commands, Flash Controller translates Hard Drive SSD Flash Memory Operating System: “Write to Track X, Sector Y” Flash Controller: “OK, I did it” but actually writes differently
SSD Forensic problems Solid State Drives: The Beginning of the End for Current Practice in Digital Forensic Recovery? Graeme B. Bell, Richard Boddington, JDFSL [SSDs] “can operate under their own volition in the absence of computer instructions. Such operations are highly destructive of traditionally recoverable data. This can contaminate evidence; can obfuscate and make validation of digital evidence reports difficult; can complicate the process of live and dead analysis recovery; and can complicate and frustrate the post recovery forensic analysis. Our experimental findings demonstrate that SSDs have the capacity to destroy evidence catastrophically under their own volition, in the absence of specific instructions to do so from a computer.”
SSD Wiping problems From the Research paper “Reliably Erasing Data From Flash-Based Solid State Drives”, Michael Wei, et. Al. Single File Sanitization
So, What To Do? • Embrace the concept – SSDs are here to stay • Talk to your customers before moving to SSD • Make sure Purchasing and IT Staff coordinate SSD use with Security
Brian Easter TASC brian.easter@tasc.com (719)572-8605