deduplication question

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just discovered feature , have questions. new , limited understanding how works in analyzes file @ block level , if block same dark magic , files same matching block share one.

having discussion people saying believe when scanning happens copy's universal data chunks to hidden folder on drive , shares that.

the conversation changed happens if happens folder?

can repaired copying hidden folder backup or need restore whole drive from backup , previous version still work properly?

from disaster recovery point down side this?

hi sgtwtf22,

for deduplication data， is compressed , placed chunk store located in hidden folder @ root of volume called system volume information, or “svi folder”. normal file replaced small reparse point, has pointer map of data streams , chunks required “rehydrate” file , serve when requested.

for repair function， a weekly scrubbing job inspects event log logged corruptions , fixes data chunks alternate copies if exist. there optional deep scrub job available walk through entire data set, looking corruptions , tries fix them

please refer blog more details deduplication

https://blogs.technet.microsoft.com/filecab/2012/05/20/introduction-to-data-deduplication-in-windows-server-2012/

best regards,

mary

please remember mark replies answers if help.
if have feedback technet subscriber support, contact tnmff@microsoft.com.



Windows Server  >  File Services and Storage



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