컨트롤 화일 정보를 살펴볼수 있습니다.
pg_controldata 명령어의 옵션으로 데이터 디렉토리를 지정하면 됩니다.
[postgres@pg-00:/var/lib/pgsql]$ pg_controldata /var/lib/pgsql/9.2/data
pg_control version number: 922
Catalog version number: 201204301
Database system identifier: 5826848854709727743
Database cluster state: in production
pg_control last modified: Sat 22 Jun 2013 03:27:12 PM KST
Latest checkpoint location: 0/1B002010
Prior checkpoint location: 0/1B000074
Latest checkpoint's REDO location: 0/1B002010
Latest checkpoint's TimeLineID: 1
Latest checkpoint's full_page_writes: on
Latest checkpoint's NextXID: 0/2035
Latest checkpoint's NextOID: 16753
Latest checkpoint's NextMultiXactId: 1
Latest checkpoint's NextMultiOffset: 0
Latest checkpoint's oldestXID: 1798
Latest checkpoint's oldestXID's DB: 1
Latest checkpoint's oldestActiveXID: 0
Time of latest checkpoint: Sat 22 Jun 2013 03:27:11 PM KST
Minimum recovery ending location: 0/0
Backup start location: 0/0
Backup end location: 0/0
End-of-backup record required: no
Current wal_level setting: archive
Current max_connections setting: 100
Current max_prepared_xacts setting: 0
Current max_locks_per_xact setting: 64
Maximum data alignment: 4
Database block size: 8192
Blocks per segment of large relation: 131072
WAL block size: 8192
Bytes per WAL segment: 16777216
Maximum length of identifiers: 64
Maximum columns in an index: 32
Maximum size of a TOAST chunk: 2000
Date/time type storage: 64-bit integers
Float4 argument passing: by value
Float8 argument passing: by reference
[postgres@pg-00:/var/lib/pgsql]$
