bash-4.2$ pg_probackup-12 show     -B /backup/pgsqlBACKUP INSTANCE 'main'======================================================================================================================================== Instance  Version  ID      Recovery Time           Mode  WAL Mode  TLI    Time   Data    WAL  Zratio  Start LSN    Stop LSN     Status======================================================================================================================================== main      12       QFW4NN  2020-08-30 22:58:29+03  FULL  STREAM    2/0  1h:32m  496GB   50GB    1.00  89/E8870760  8D/4870FE80  OK main      12       QFUZQN  2020-08-30 07:13:00+03  PAGE  STREAM    2/2     23s  150MB  192MB    1.00  2/B000110    2/1659BB70   OK main      12       QFUZOL  2020-08-30 07:12:27+03  FULL  STREAM    2/0     12s  182MB   16MB    1.00  2/B000110    2/B000250    OK-bash-4.2$

-bash-4.2$ pg_probackup-12 backup   -B /backup/pgsql -U backup --instance main -b PAGE --stream --temp-slot --merge-expired --delete-expired --delete-wal -j 16 --progress --log-directory=/vol/pgsql --log-filename=probackup-page-%y%m%d-%H%M%S.log --log-level-file=verboseINFO: Backup start, pg_probackup version: 2.4.2, instance: main, backup ID: QFXDZ8, backup mode: PAGE, wal mode: STREAM, remote: false, compress-algorithm: none, compress-level: 1INFO: Backup QFXDZ8 is going to be taken from standbyINFO: Wait for WAL segment /backup/pgsql/wal/main/000000020000010D0000002E to be archivedINFO: Parent backup: QFW4NNINFO: PGDATA size: 936GBINFO: Extracting pagemap of changed blocksKilled-bash-4.2$

[root@pgbase02 ~]# ls -l /backup/pgsql/wal/main | wc -l68389[root@pgbase02 ~]#

[root@pgbase02 ~]# free -m              total        used        free      shared  buff/cache   availableMem:          64429        2884       44867       16137       16676       44632Swap:           763         760           3[root@pgbase02 ~]#