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.
Use pigz instead of gzip when N>0. N=1 uses half of cores, N>1 uses N as thread count.
+`pool`: `<string>` ::
+
+Backup all known guest systems included in the specified pool.
+
`remove`: `<boolean>` ('default =' `1`)::
Remove old backup files if there are more than 'maxfiles' backup files.
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.
+