Homer Li

400% space waste because the -o ashift=9 not working in the ZOL 2.x.x

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### System information Type | Version/Name --- | --- Distribution Name | CentOS Distribution Version | 7.9 Kernel Version | 3.10.0-1160.49.1.el7_lustre.x86_64 Architecture | AMD64 OpenZFS Version | 2.0.7 ### Describe...

The Linux native fallocate and posix_fallocate(punch hole in some of the filesystem) are not written to the block device

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**Please acknowledge the following before creating a ticket** - [x] I have read the GitHub issues section of [REPORTING-BUGS](../blob/master/REPORTING-BUGS). **Description of the bug:** There is no FIO issue, the test...

Hi Because there are about one billion in the single table. the database is too slow. Thank you.