mtrantalainen

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  1. It does not matter how much existing data you have on a "device managed" SMR drive. What matters if how many GBs you write per hour. If you write less than ~20 GB per hour per drive you'll be fine. If you write faster, the performance will be around 1-5 % of the usual until you (or bad latency) slow down enough for the drive to flush the PMR/CMR cache area. For short enough bursts, SMR drives are just fine. And they are fine for reading in all cases. See also: https://unix.stackexchange.com/a/489530/20336