pg_standby replication problem

Hi All

I would like to re-post the problem we have. The secondary server ran out
the disc space due the replication problem (Connection Time out).Since there
was a Connection time out Problem in the primary server, how can I make disc
space in the secondary server for the replication to continue from where it
stopped. Do I remove walfiles from the secondary server?

Below it's the details of the log file from the primary server:

replication started: Sun Jun 8 00:05:26 SAST 2014 source:
pg_xlog/0000000500004BAF000000AF, dest: 0000000500004BAF000000AF replication
finished: Sun Jun 8 00:05:33 SAST 2014 replication started: Sun Jun 8
00:05:33 SAST 2014 source: pg_xlog/0000000500004BAF000000B0, dest:
0000000500004BAF000000B0
ssh: connect to host 10.58.101.10 port 22: Connection timed out^M
rsync: connection unexpectedly closed (0 bytes received so far) [sender]
rsync error: unexplained error (code 255) at io.c(600) [sender=3.0.6]
replication finished: Sun Jun 8 00:07:41 SAST 2014 replication started: Sun
Jun 8 00:07:41 SAST 2014 source: pg_xlog/0000000500004BAF000000B1, dest:
0000000500004BAF000000B1 replication finished: Sun Jun 8 00:07:53 SAST 2014
replication started: Sun Jun 8 00:07:53 SAST 2014 source:
pg_xlog/0000000500004BAF000000B2, dest: 0000000500004BAF000000B2 replication
finished: Sun Jun 8 00:07:57 SAST 2014 replication started: Sun Jun 8
00:07:58 SAST 2014 source: pg_xlog/0000000500004BAF000000B3, dest:
0000000500004BAF000000B3 replication finished: Sun Jun 8 00:08:06 SAST 2014
replication started: Sun Jun 8 00:08:06 SAST 2014 source:
pg_xlog/0000000500004BAF000000B4, dest: 0000000500004BAF000000B4 replication
finished: Sun Jun 8 00:08:11 SAST 2014 replication started: Sun Jun 8
00:08:11 SAST 2014 source: pg_xlog/0000000500004BAF000000B5, dest:
0000000500004BAF000000B5 replication finished: Sun Jun 8 00:08:16 SAST 2014
replication started: Sun Jun 8 00:08:16 SAST 2014 source:
pg_xlog/0000000500004BAF000000B6, dest: 0000000500004BAF000000B6 replication
finished: Sun Jun 8 00:08:22 SAST 2014

Disc space Breakdown:

4.0K ./backup
12K ./copy
4.9T ./data
204K ./test
16K ./lost+found
361G ./walfiles
5.3T .

Filesystem Size Used Avail Use% Mounted on
/dev/sda3 57G 15G 39G 28% /
/dev/mapper/vg0-pgsql2
5.4T 5.3T 0 100% /pgsql2
/dev/sda1 99M 12M 83M 13% /boot
tmpfs 30G 0 30G 0% /dev/shm

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