[PVE-User] sparse and compression

[Miguel González]

> 
> Also keep in mind: A sparse volume only stays sparse if trim/discard is used!

How do I use trim/discard? Has this to be set in guest level, right?

> 
> volblocksize is important: ZFS is using 8k as default. For ZFS filesystem a
> recordsize of 128K is used.

Can I change recordsize to 128K after creation or do I need to create a
new zpool for that?

Thanks for your promptly answer!

Miguel


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