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IM242S       

                                                                                                                               

     

User Manual

 

12 

performance close to the Shannon limit when decoded with the belief-propagation (BP) algorithm 
using soft-decision information.   

3.4 Wear-Leveling 

Flash memory can be erased within a limited number of times. This number is called the

 

erase 

cycle limit

 

or

 

write endurance

 

limit

 

and is defined by the flash array vendor. The erase cycle 

limit applies to each individual erase block in the flash device.   

ICOP IM242S uses a static wear-leveling algorithm to ensure that consecutive writes of a specific 
sector are not written physically to the same page/block in the flash. This spreads flash media 
usage evenly across all pages, thereby extending flash lifetime. 

3.5 Bad Blocks Management 

Bad Blocks are blocks that contain one or more invalid bits whose reliability are not guaranteed. 
The Bad Blocks may be presented while the SSD is shipped, or may develop during the life time 
of the SSD. When the Bad Blocks is detected, it will be flagged, and not be used anymore. The 
SSD implement Bad Blocks management, Bad Blocks replacement, Error Correct Code to avoid 
data error occurred. The functions will be enabled automatically to transfer data from Bad Blocks 
to spare blocks, and correct error bit. 

3.6 Power Cycling 

ICOP’s power cycling management is a comprehensive data protection mechanism that functions 
before and after a sudden power outage to SSD. Low-power detection terminates data writing 
before an abnormal power-off, while table-remapping after power-on deletes corrupt data and 
maintains  data  integrity.  ICOP’s  power  cycling  provides  effective  power  cycling  management, 
preventing data stored in flash from degrading with use. 

3.7 Garbage Collection 

Garbage collection is used to maintain data consistency and perform continual data cleansing on 
SSDs.  It  runs as a background process, freeing up valuable controller resources while sorting 
good  data  into  available  blocks,  and  deleting  bad  blocks.  It  also  significantly  reduces  write 
operations to the drive, thereby increasing the SSD’s speed and lifespan.   

 

 

Содержание IM242S Series

Страница 1: ...User Manual M 2 2242 SSD IM242S Series Version 1 0...

Страница 2: ...Humidity 6 2 4 3 Shock and Vibration 6 2 4 4 Mean Time between Failures MTBF 6 2 5 CE AND FCC COMPATIBILITY 7 2 6 ROHS COMPLIANCE 7 2 7 RELIABILITY 7 2 8 TRANSFER MODE 7 2 9 PIN ASSIGNMENT 8 2 12 SEE...

Страница 3: ...IM242S User Manual 3 REVISION HISTORY Revision Description Date Rev 1 0 Version 1 0 Released Jan 2019...

Страница 4: ...including TRIM NCQ and S M A R T In addition the exclusive industrial oriented firmware provides a flexible customization service making it perfect for a variety of industrial applications 1 2 Produc...

Страница 5: ...8GB 16GB 32GB 64GB 128GB 256GB 1CH 2CH Sequential Read max 140 MB s 200 MB s 270 MB s 450MB s 530 MB s 530 MB s 530 MB s Sequential Write max 25 MB s 25 MB s 60 MB s 50 MB s 100 MB s 120 MB s 210 MB s...

Страница 6: ...anical Shock Duration 0 5ms 1500 G 3 axes IEC 68 2 27 2 4 4 Mean Time between Failures MTBF Table 7 summarizes the MTBF prediction results for various IM242S configurations The analysis was performed...

Страница 7: ...TBW Total Bytes Written Unit TB Capacity Sequential workload Client workload 08GB 23 4 15 6 16GB 46 8 31 2 32GB 93 6 62 4 64GB 187 2 124 8 128GB 374 4 208 3 256GB 748 8 416 6 Note 1 Sequential Mainly...

Страница 8: ...70 69 GND NC 68 67 NC Notch 66 65 Notch Notch 64 63 Notch Notch 62 61 Notch Notch 60 59 Notch NC 58 NC 56 57 GND NC 54 55 NC NC 52 53 NC NC 50 51 GND NC 48 49 RX NC 46 47 RX NC 44 45 GND NC 42 43 TX N...

Страница 9: ...IM242S User Manual 9 NC 8 9 NC NC 6 7 NC 3 3V 4 5 NC 3 3V 2 3 GND 1 GND 2 10 Mechanical Dimensions Figure 2 ICOP IM242S diagram TSOP...

Страница 10: ...tion User has to avoid hot plugging the SSD which is configured as boot device and installed operation system Surprise hot plug The insertion of a SATA device into a backplane combine signal and power...

Страница 11: ...e flash device s occurs through the flash interface 3 2 SATA III Controller ICOP IM242S is designed with 88NV1120 a SATA III 6 0Gbps Gen 3 controller The Serial ATA physical link and transport layers...

Страница 12: ...e Bad Blocks is detected it will be flagged and not be used anymore The SSD implement Bad Blocks management Bad Blocks replacement Error Correct Code to avoid data error occurred The functions will be...

Страница 13: ...ay be either directly connected to a host or connected to a host through a cable For connection via cable the cable should be no longer than 1meter The SATA interface has a separate connector for the...

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