[root@mprl006 9.5]# df -h /var/lib/pgsql
Filesystem                   Size  Used Avail Use% Mounted on
/dev/mapper/appsvg-pgsqlvol   30G   28G  9.3M 100% /var/lib/pgsql
[root@mprl006 9.5]#
[root@mprl006 9.5]#
[root@mprl006 9.5]#
[root@mprl006 9.5]# pwd
/var/lib/pgsql/9.5
[root@mprl006 9.5]#
[root@mprl006 9.5]# ls -l
total 12
drwx------  2 postgres postgres 4096 Feb  6 20:53 backups
drwx------ 20 postgres postgres 4096 May 20 14:11 data
-rw-------  1 postgres postgres 1324 May 16 16:55 initdb.log
[root@mprl006 9.5]#
[root@mprl006 9.5]# du -sh .
28G     .
[root@mprl006 9.5]# cd backups
[root@mprl006 backups]# pwd
/var/lib/pgsql/9.5/backups
[root@mprl006 backups]#
[root@mprl006 backups]# du -sh .
4.0K    .
[root@mprl006 backups]#
[root@mprl006 backups]# cd ../data/
[root@mprl006 data]#
[root@mprl006 data]# du -sh .
28G     .


[root@mprl006 data]# du -sh ./* |sort -rn
560K    ./global
184K    ./pg_subtrans
28K     ./pg_multixact
24K     ./postgresql.conf
20K     ./pg_clog
16G     ./base
13G     ./pg_xlog
12K     ./pg_notify
12K     ./pg_logical
8.0K    ./pg_hba.conf
4.0K    ./server.key
4.0K    ./server.crt
4.0K    ./root.crt
4.0K    ./postmaster.opts
4.0K    ./postgresql.auto.conf
4.0K    ./PG_VERSION
4.0K    ./pg_twophase
4.0K    ./pg_tblspc
4.0K    ./pg_stat_tmp
4.0K    ./pg_stat
4.0K    ./pg_snapshots
4.0K    ./pg_serial
4.0K    ./pg_replslot
4.0K    ./pg_log
4.0K    ./pg_ident.conf
4.0K    ./pg_dynshmem
4.0K    ./pg_commit_ts
[root@mprl006 data]#