show parameters like '%datafile%';
"zone"	"svr_type"	"svr_ip"	"svr_port"	"name"	"data_type"	"value"	"info"	"section"	"scope"	"source"	"edit_level"	"default_value"	"isdefault"
"zone2"	"observer"	"192.168.200.234"	"2882"	"datafile_disk_percentage"	"INT"	"0"	"the percentage of disk space used by the data files. Range: [0,99] in integer"	"SSTABLE"	"CLUSTER"	"DEFAULT"	"DYNAMIC_EFFECTIVE"	"0"	"1"
"zone2"	"observer"	"192.168.200.234"	"2882"	"datafile_maxsize"	"CAPACITY"	"5000G"	"the auto extend max size. Range: [0, +∞)"	"SSTABLE"	"CLUSTER"	"DEFAULT"	"DYNAMIC_EFFECTIVE"	"0"	"0"
"zone2"	"observer"	"192.168.200.234"	"2882"	"datafile_next"	"CAPACITY"	"200G"	"the auto extend step. Range: [0, +∞)"	"SSTABLE"	"CLUSTER"	"DEFAULT"	"DYNAMIC_EFFECTIVE"	"0"	"0"
"zone2"	"observer"	"192.168.200.234"	"2882"	"datafile_size"	"CAPACITY"	"2048G"	"size of the data file. Range: [0, +∞)"	"SSTABLE"	"CLUSTER"	"DEFAULT"	"DYNAMIC_EFFECTIVE"	"0M"	"0"
"zone1"	"observer"	"192.168.200.233"	"2882"	"datafile_disk_percentage"	"INT"	"0"	"the percentage of disk space used by the data files. Range: [0,99] in integer"	"SSTABLE"	"CLUSTER"	"DEFAULT"	"DYNAMIC_EFFECTIVE"	"0"	"1"
"zone1"	"observer"	"192.168.200.233"	"2882"	"datafile_maxsize"	"CAPACITY"	"5000G"	"the auto extend max size. Range: [0, +∞)"	"SSTABLE"	"CLUSTER"	"DEFAULT"	"DYNAMIC_EFFECTIVE"	"0"	"0"
"zone1"	"observer"	"192.168.200.233"	"2882"	"datafile_next"	"CAPACITY"	"200G"	"the auto extend step. Range: [0, +∞)"	"SSTABLE"	"CLUSTER"	"DEFAULT"	"DYNAMIC_EFFECTIVE"	"0"	"0"
"zone1"	"observer"	"192.168.200.233"	"2882"	"datafile_size"	"CAPACITY"	"2048G"	"size of the data file. Range: [0, +∞)"	"SSTABLE"	"CLUSTER"	"DEFAULT"	"DYNAMIC_EFFECTIVE"	"0M"	"0"
"zone3"	"observer"	"192.168.200.232"	"2882"	"datafile_disk_percentage"	"INT"	"0"	"the percentage of disk space used by the data files. Range: [0,99] in integer"	"SSTABLE"	"CLUSTER"	"DEFAULT"	"DYNAMIC_EFFECTIVE"	"0"	"1"
"zone3"	"observer"	"192.168.200.232"	"2882"	"datafile_maxsize"	"CAPACITY"	"5000G"	"the auto extend max size. Range: [0, +∞)"	"SSTABLE"	"CLUSTER"	"DEFAULT"	"DYNAMIC_EFFECTIVE"	"0"	"0"
"zone3"	"observer"	"192.168.200.232"	"2882"	"datafile_next"	"CAPACITY"	"200G"	"the auto extend step. Range: [0, +∞)"	"SSTABLE"	"CLUSTER"	"DEFAULT"	"DYNAMIC_EFFECTIVE"	"0"	"0"
"zone3"	"observer"	"192.168.200.232"	"2882"	"datafile_size"	"CAPACITY"	"2048G"	"size of the data file. Range: [0, +∞)"	"SSTABLE"	"CLUSTER"	"DEFAULT"	"DYNAMIC_EFFECTIVE"	"0M"	"0"

show parameters like '%log_disk_size%';
"zone"	"svr_type"	"svr_ip"	"svr_port"	"name"	"data_type"	"value"	"info"	"section"	"scope"	"source"	"edit_level"	"default_value"	"isdefault"
"zone1"	"observer"	"192.168.200.233"	"2882"	"log_disk_size"	"CAPACITY"	"300G"	"the size of disk space used by the log files. Range: [0, +∞)"	"LOGSERVICE"	"CLUSTER"	"DEFAULT"	"DYNAMIC_EFFECTIVE"	"0M"	"0"
"zone1"	"observer"	"192.168.200.233"	"2882"	"syslog_disk_size"	"CAPACITY"	"0M"	"the size of disk space used by the syslog files. Range: [0, +∞)"	"OBSERVER"	"CLUSTER"	"DEFAULT"	"DYNAMIC_EFFECTIVE"	"0M"	"1"
"zone2"	"observer"	"192.168.200.234"	"2882"	"log_disk_size"	"CAPACITY"	"300G"	"the size of disk space used by the log files. Range: [0, +∞)"	"LOGSERVICE"	"CLUSTER"	"DEFAULT"	"DYNAMIC_EFFECTIVE"	"0M"	"0"
"zone2"	"observer"	"192.168.200.234"	"2882"	"syslog_disk_size"	"CAPACITY"	"0M"	"the size of disk space used by the syslog files. Range: [0, +∞)"	"OBSERVER"	"CLUSTER"	"DEFAULT"	"DYNAMIC_EFFECTIVE"	"0M"	"1"
"zone3"	"observer"	"192.168.200.232"	"2882"	"log_disk_size"	"CAPACITY"	"300G"	"the size of disk space used by the log files. Range: [0, +∞)"	"LOGSERVICE"	"CLUSTER"	"DEFAULT"	"DYNAMIC_EFFECTIVE"	"0M"	"0"
"zone3"	"observer"	"192.168.200.232"	"2882"	"syslog_disk_size"	"CAPACITY"	"0M"	"the size of disk space used by the syslog files. Range: [0, +∞)"	"OBSERVER"	"CLUSTER"	"DEFAULT"	"DYNAMIC_EFFECTIVE"	"0M"	"1"

select * from oceanbase.__all_virtual_disk_stat;
"svr_ip"	"svr_port"	"total_size"	"used_size"	"free_size"	"is_disk_valid"	"disk_error_begin_ts"	"allocated_size"
"192.168.200.232"	"2882"	"5368709120000"	"1515792105472"	"683226955776"	"1"	"0"	"2199023255552"
"192.168.200.233"	"2882"	"5368709120000"	"1515483824128"	"683535237120"	"1"	"0"	"2199023255552"
"192.168.200.234"	"2882"	"5368709120000"	"5368704925696"	"0"	"0"	"1727082838613069"	"5368709120000"