Limit I/O bandwidth (KBytes per second).
-`--compress` `<0 | 1 | gzip | lzo>` ('default =' `0`)::
+`--compress` `<0 | 1 | gzip | lzo | zstd>` ('default =' `0`)::
Compress dump file.
Backup all known guest systems included in the specified pool.
+`--prune-backups` `[keep-daily=<N>] [,keep-hourly=<N>] [,keep-last=<N>] [,keep-monthly=<N>] [,keep-weekly=<N>] [,keep-yearly=<N>]` ::
+
+Use these retention options instead of those from the storage configuration.
+
`--quiet` `<boolean>` ('default =' `0`)::
Be quiet.
Store temporary files to specified directory.
+`--zstd` `<integer>` ('default =' `1`)::
+
+Zstd threads. N=0 uses half of the available cores, N>0 uses N as thread count.
+