BTRFS Cache pool containing 6 drives. Removed a old slow 500gb drive (ensuring lots of spare space...over 2 TB free in the pool, over the size of the removed 500GB drive) leaving 5. Rebuild started automatically (as expected) has been running faithfully now....for a F-ING MONTH!!! I know it takes about 4 hours tops to move 500gb of data (on really slow hardware)...why is this taking months to rebalance a small pool???
This has happened with other pools on other machines as well, and one time taking 3 months to finish...all the while, making read/write time almost unusable for normal operation...if i cancel the rebuild, i risk losing the pool all together (experience taught me that silly lesson).
This would have been 1000000000x faster if i moved all the data to another pool, rebuilt this pool and started from scratch every time i want to add, replace, or remove a drive! Is that normal for BTRFS management or is something wrong (it better be, cuz this time spent isn't ok).
I don't know if ya'll would want the full diag, or something more specific to this pool...so i will await a gurus advice!
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By miicar
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