SD8XA-004G-000000 SanDisk, SD8XA-004G-000000 Datasheet - Page 12

• Manufacturer Part Number: SD8XA-004G-000000
• Description: SSD ULTRA320 SCSI 4GB
• Manufacturer: SanDisk
• Series: Ultra320r

Specifications of SD8XA-004G-000000

• Memory Size: 4GB
• Memory Type: FLASH
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: FFD35-U3S-4-X-P80-P; FFD35-U3S-4-X-P80-P

4.1.9.
The SSD product life span and the performance are enhanced by the following features:
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4.1.10.
4.1.10.1
The weight of the SSD conforms to the values defined in Table 5.
Note: The information in this section is relevant for SSD units with firmware version 1.07 and
12
Dynamic wear-leveling algorithm: This algorithm eliminates situations where the
application repeatedly writes to the same physical location until its flash components wear
out. The dynamic wear leveling algorithm applies virtual mapping of logical sectors to
physical blocks and is completely transparent to the customer application.
Garbage collection process: This process eliminates the need to perform an erase operation
prior to every write operation, which eliminates excessive disk deterioration. Additionally,
the garbage collection process accumulates data considered necessary for erasure until the
block is full.
EDC/ECC (Error Detection Code/Error Correction Code): The SSD has embedded error
detection and error correction hardware and software mechanisms. The EDC/ECC uses the
BCH algorithm, which can detect up to 5 errors in 512 bytes of data, and correct up to 4
errors.
Bad-block mapping algorithm: This algorithm replaces bad blocks with new blocks from
available spares.
later.
Memory Density (GB)
Endurance
Physical Characteristics
Weight
1 – 8, 16, 24, 32
12, 20, 40 – 128
136 – 224
240 – 320
336 – 352
Table 5: SSD Ultra320 SCSI 3.5” Weight
Product Specification and User Manual
Case Height (in)
0.5
0.5
1
1
1
Maximum Weight (g)
SSD (Formerly FFD) Ultra320 SCSI 3.5"
250
275
415
480
525
43-PS-0305-00 Rev. 2.2