Data Scrubbing : rsynology

Data scrubbing, also known as data cleansing, is the meticulous process of detecting and correcting (or removing) corrupt or inaccurate records from a dataset. Data scrubbing synology · Data cleansing vs. data... · Benefits of data scrubbin

Data Scrubbing 可修正儲存集區中不正確或不完整的資料，以達到維護資料的目的。建議您定期執行Data Scrubbing 以確保資料一致性，避免因硬碟故障而遺失重要資料。 開始進行 ...

It involves identifying data errors and then changing, updating or removing data to correct them. Data scrubbing can be used for data ...

這很有作用，還可以兼掃出有壞軌的硬碟， 但是很耗效能要跑約12小時，效能佔用可能 影響服務，一般最好都半夜開始跑，隔天中 午就完成.

Data Scrubbing 可修正儲存集區中不正確或不完整的資料， 以達到維護資料的目的。 降級的狀況下，無法執行會自動終止，直到 你新硬碟換上重建後恢復正常， ...

Once every three months is OK if not too often. You have to balance it with how often can you tolerate performance degradation of your array during scrub.

Scrubbing, is simply reading data. That reading of data allows for built in error correction to find/fix anything that doesn't read right.

Synology NAS devices utilizing Btrfs can self-heal files with data scrubbing, but it has to be configured properly...and most people don't ...