SAS Flash 3 drives(also known asRead-Intensive (RI)SSDs in Dell Unity XT environments) are typically rated at3 Drive Writes Per Day (DWPD).
✅What does 3 DWPD mean?
It means that these drives are designed to safely handle writingthree times their entire capacity every dayover their warranty period (usually 5 years).
For example, a 1TB SAS Flash 3 drive can handle up to3TB of writes per daywithout exceeding its endurance specification.
✅Why is this important?
The DWPD metric is a crucial factor in determining whether a drive’s endurance matches the expected workload.
3 DWPDstrikes a balance betweenenduranceandcostin most general-purpose storage workloads.
✅Where is this documented?
TheDell EMC Unity XT Best Practices Guideand theDell EMC Unity XT Drive Specification Guidedetail the DWPD ratings for different flash drive types, including SAS Flash 3 drives.
Dell’s documentation confirms that SAS Flash 3 drives (RI SSDs) are rated at3 DWPD.
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