# Review of MLC

# Promotion List(被移出)
1. the page is promoted to a fast page.
2. when a page needs to be inserted into a full promotion list, a page with a zero read count is evicted to make room for the new page.
3. a page P is removed from the list upon a write to it.
# Exploiting I/O Parallelism
# The Striping Technique
# Striping: Read and Write
# The Interleaving Technique
# Interleaving: Read and Write (1/2)
# Interleaving: Read and Write (2/2)
# The Pipelining Technique
# Pipelining: Read and Write
# Putting It All Together (1/2)
# Putting It All Together (2/2)
# Importance of Hot-Data Identification (1/2)
# Two level LRU with Hot data
> 全班上台操作過
# Implementation Strategies
# Analytic Study
# About SSD Controller (名詞解釋?)
– Flash Translation Layer
– Flash Reliability Management
– Compression和
– Data Scrambling and Encryption
– Error-Correcting Codes
– Data Path Protection
– Bad Block Management
– Superpage-Level Parity
比較Compression和Encryption
# Data Scrambling (1/2)
# The function of coding rate
coding rate (= chunk size / codeword size).
# Error-Correcting Codes
# ECC vs. CRC
# 可能考順序?(以及紅綠藍分別在幹嘛)
# What are OBBs and GBBS
# LB Access Failure (1/2)
# LB Access Failure (2/2)
# Design Tradeoffs for Reliability 和 OP的定義
# RBER over the Lifetime of a Flash Block
# 哪些ERROR及定義
# P/E Cycling 越多有哪些影響
# Program Errors (1/4)
# TLC MLC SLC about program error
# Data Retention Errors
# Two Failure Mechanisms
# Why Read Disturb Error
# 是非題?
# Five Key Observations (1/3)
# Five Key Observations (2/3)
# Five Key Observations (3/3)
# Error Mitigation Mechanisms
# Key idea of NAC
# 解釋三種差別是什麼
# The Key idea of In-Place Refresh
# Disparity-Based Approximation and Sampling (1/2)
# Illustration of Binary Search Algorithm
# 受到哪三種input的影響
Three Read Reference
1. P/E Cycle count
2. retention age
3. read disturb
# Dynamic Pass-Through Voltage Tuning
# Why Multi-Rate ECC 可以提升Reliablity

# Downgrade from TLC to MLC