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zoned device goes read only with lots of writes #779

@Motophan

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@Motophan

If I add a lot of large files to a zoned hm smr hdd the drive will eventually go read only. If I slow the files down considerably (to like 20MB/s) it wont go read only or it will take much longer to go read only.

Sometimes lsblk will show the drive as 0 bytes, sometimes it will show the full device capacity

Sometimes I will see "lowering kernel perf" in dmesg before it craps out

I have 32 of these drives and every single one of them will do this regardless of cables or computer. I have tried in arch which should have the latest btrfs-progs and ubuntu lts.

These are ST14000NM0007

I think that the drive is too busy updating data to do the zoned part and then craps out, idk.

What do you need from me to get enough data to fix it?
I can get them into read only after maybe 200GB-2TB of data blasted at them full speed

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