Hello, I got response from pgsql-hackers that it is normal. In fact, the newer segments that you see are pre-allocated ones (none of those contain any valid WAL data as of now). And WAL data is currently being written to an earlier segment like 000000010000000E00000080 (which seems to be the latest in your "ls -lrt" output). By the way, what are the values of following configuration parameters for your cluster? checkpoint_segments=? checkpoint_timeout=? archive_mode=? archive_command=? -- Amit Langote -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin