Innodisk InnoAGE M.2 (S80) 3TI7, Руководство пользователя

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InnoAGE TM M.2 (S80) 3TI7
21 V1.2 TPS, July., 2020
3.5 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.
Innodisk InnoAGE M.2 (S80) 3TI7 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.
3.6 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.
3.7 iData Guard
Innodisk’s iData Guard 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. Innodisk’s iData Guard provides effective power cycling management, preventing
data stored in flash from degrading with use.
3.8 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.
3.9 Trim
The Trim command is designed to enable the operating system to notify the SSD which pages no
longer contain valid data due to erases either by the user or operating system itself. During a
delete operation, the OS will mark the sectors as free for new data and send a Trim command to
the SSD to mark them as not containing valid data. After that the SSD knows not to preserve the
contents of the block when writing a page, resulting in less write amplification with fewer writes
to the flash, higher write speed, and increased drive life.
3.10 iPower Guard
iPower Guard technology is a set of preventive measures that protect the SSD in an unstable
power supply environment. This comprehensive package comprises safeguards for startup and
shutdown to maintain device performance and ensure data integrity.