Long-time maintenance of Hammer2 on HDD

Justin Sherrill justin at shiningsilence.com
Fri Nov 8 09:28:03 PST 2019

For what it's worth, the many, many bulk builds of dports using
poudriere and synth and dsynth are happening on hammer/hammer2 disks,
and to my knowledge, there has been no degradation over time.

On Thu, Nov 7, 2019 at 5:18 PM Mikhail Novosyolov
<m.novosyolov at rosalinux.ru> wrote:
> As far as I understand, Hammer2 was designed mainly for flash memory (SSD, NVMe).
> Currently I am using it on a 2 TB HDD.
> Imagine that a lot of files and snapshots are created and deleted and there are multiple MySQL databases there.
> How will Hammer2 consistency and performance degrade over time in this use case?
> Did not find information about HDDs and defragmentation in sys/fs/Hammer2/DESIGN.

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