I am testing btrfs for long-term storage and backup, and i would like
to know more about "autodefrag" option:
1. Will "autodefrag" option benefit ssd?
My understanding is:
autodrag -> number of extent decrease -> metadata decrease -> a
"healthier" filesystem in the long run
(P.S. I am aware that autodefrag will introduce extra write I/O)
2. AFAIK, "autodefrag" detects small random writes into files and
queues them up for an automatic defrag process, so the filesystem will
defragment itself while it's used.
If the system reboot/crash/remount-ro, will the autodefrag process
continue after resume?
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