Definition

solid state drive (SSD) capacity

SSD capacity is the maximum amount or data that can be stored on a solid state drive.

 According to JEDEC, SSD capacity should be defined as user-addressable capacity and not include non-volatile memory areas intended for the flash controller's use.   JEDEC recommends that SSD capacity be calculated using the following formulas:

For a logical block size of 512 bytes:

User-addressable logical block count = 21168 + (1953504 x SSD Capacity in GBs); or

SSD Capacity in GBs = (User-addressable logical block count - 21168) / 1953504.

 

For a logical block size of 4096 bytes:

User-addressable logical block count = 2646 + (244188 x Capacity in GBs); or

Capacity in GBs= (User-addressable logical block count -2646) / 244188

 

 

This was last updated in January 2012

Continue Reading About solid state drive (SSD) capacity

Dig Deeper on Solid state storage technology

PRO+

Content

Find more PRO+ content and other member only offers, here.

Start the conversation

Send me notifications when other members comment.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchConvergedInfrastructure

SearchCloudStorage

SearchDisasterRecovery

SearchDataBackup

SearchStorage

SearchITChannel

Close