WAL

hi,
i had made necessary change in the postgresql.conf for enabling WAL. How can
i know that WAL is working?
The configurations done in the postgresql.conf file is as below:
#---------------------------------------------------------------------------
# WRITE AHEAD LOG
#---------------------------------------------------------------------------

# - Settings -

fsync = true # turns forced synchronization on or off
wal_sync_method = fsync # the default varies across platforms:
# fsync, fdatasync, fsync_writethrough,
# open_sync, open_datasync
wal_buffers = 8 # min 4, 8KB each
commit_delay = 0 # range 0-100000, in microseconds
commit_siblings = 5 # range 1-1000

# - Checkpoints -

checkpoint_segments = 3 # in logfile segments, min 1, 16MB each
checkpoint_timeout = 300 # range 30-3600, in seconds
checkpoint_warning = 30 # 0 is off, in seconds

# - Archiving -

archive_command = 'cp -i %p /testpg/server/archivedir/%f </dev/null'

your response will be highly appreciated.

thanks

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