Questions tagged [openzfs]

19 questions
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Zpool permanent error for raidz2

Problem: Zpool shows "errors: Permanent errors have been detected in the following files: tank/vms/fileserver:<0x0> Server has six 12Tb drives in a raidz2. These are spinning drives. Zpool shows all drives are ONLINE. There are no read, write, or…
pender
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ZFS/ZoL: Consequences of increasing zfs_vdev_async_write_min_active?

By default zfs_vdev_async_write_min_active=2, with a corresponding max of 10. The same default max of 10 applies to the sync read and write queues, but for them the min is also 10. I've seen configs that boost all of these minimums to the same…
Tavin
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Does zfs zfs recv validate checksums?

It seems that zfs send includes a checksum for all included data (stated for instance here). Is this checksum automatically verified by zfs recv? I would assume it is, but I cannot find any confirmation of this. I'm planning to use zfs send/recv to…
joaerl
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Is a ZVOL considered copy-on-write anymore if I format it with another filesystem?

According to official requirements from Microsoft, SQL Server 2019 only supports either ext4 or xfs. I suspect that a Copy-On-Write filesystem such as btrfs or zfs may hurt the performance of the database. There can be bugs and other compatibility…
Livy
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