PRODUCT SPECIFICATIONS SSD-PXXX(I)-3521 DATA SHEET
SILICONSYSTEMS PROPRIETARY
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3521P-02DSR PAGE 3FEBRUARY 2, 2009
RELIABILITY
PROJECTED OPERATIONAL LIFE SPAN
* There are unlimited read cycles. Service life is determined using
SiliconSystems’ LifeEst calculation at 100% duty cycle with 25% write cycles.
LifeEst is a comprehensive measurement that considers numerous factors to
determine the projected life span of a SiliconDrive. A white paper that
describes the benefits of LifeEst and how to calculate it can be found at http://
www.siliconsystems.com/resources/Documents/Whitepaper/
SiliconSystems_NAND_Evolution.pdf.
The actual life of a SiliconDrive is dependant on the customer usage model.
SiSMART is a patented technology of SiliconSystems that enables host
systems to monitor actual usage of a SiliconDrive in real time. SiSMART
measures and reports the remaining life of a SiliconDrive. For more
information on SiSMART, refer to the Eliminating Unscheduled Downtime by
Forecasting Useable Life white paper at http://www.siliconsystems.com/
technology/pdfs/SiliconDrive_SiSMART.pdf.
Table 3: Reliability
MTBF (@ 25ºC) 4,000,000 hours
Bit Error Rate <1 non-recoverable error in 1014 bits read
Table 4: Operational Life Span
SiliconDrive Part# Capacity Service Life* GB Written per Day
SSD-P08G-3521 8GB 324.3 Years @ 135.2GB
SSD-P04G-3521 4GB 162.2 Years @ 135.2GB
SSD-P02G-3521 2GB 81.1 Years @ 135.2GB
SSD-P01G-3521 1GB 40.5 Years @ 135.2GB
SSD-P51M-3521 512MB 20.3 Years @ 135.2GB
SSD-P25M-3521 256MB 10.1 Years @ 135.2GB
SSD-P12M-3521 128MB 5.1 Years @ 135.2GB
SSD-P64M-3521 64MB 2.5 Years @ 135.2GB
SSD-P32M-3521 32MB 1.3 Years @ 135.2GB