item receive duplicated/not supposed values

[nightwish]

Hi all

I have zabbix server 1.8.4 under a centOS 5.5


I have itens that run piriodically with 30 min 10 min 1 min. All of then are receving unsuppose values:


In this example you can see what is m problem:

[2011.Feb.08 06:07:29] c2t1d0 5.69
c2t0d0 3.96
[2011.Feb.08 05:37:31] c2t1d0 4.96
c2t0d0 4.22
[2011.Feb.08 05:07:38] c2t1d0 3.98
c2t0d0 2.49
[2011.Feb.08 04:37:29] c2t1d0 5.24
c2t0d0 3.24
[2011.Feb.08 04:07:55] c2t1d0 9.23
c2t0d0 6.23
[2011.Feb.08 04:07:45] c2t1d0 4.96
c2t0d0 2.48 [2011.Feb.08 03:37:28] c2t1d0 6.70
c2t0d0 4.47
[2011.Feb.08 03:37:28] c2t1d0 4.98
c2t0d0 3.98
[2011.Feb.08 03:07:30] c2t1d0 5.47
c2t0d0 3.73
[2011.Feb.08 02:37:33] c2t1d0 10.20
c2t0d0 4.23
[2011.Feb.08 02:07:33] c2t1d0 2.99
c2t0d0 1.99
[2011.Feb.08 01:37:48] c2t1d0 5.46
c2t0d0 3.97


Anyone have a clue why this can happen ?? ..

Regards.