Items return multiple values for each discovered elements

[zunam44]

Hi, i'm new in Zabbix and i'm testing the tools and it capabilities.

I saw in the thread "Items return multiple values?" dated 30-12-2013 that it is possible to define a UserParameter script that collecte multiple values and have them send by the zabbix_send command to the server where trapper items have previously been defined. I tried this and it works fine.
I have defined a discovery rules to retrieve a list of disks and then I would like for each disk to get several I/O stat metrics in one time. I mean to get a set of i/O stat metrics value for each disk the UserParameter script receives as input parameter. Actually, I don't know if it is possible to merge these two facilities: on one side the ability to retrieve multiple value with one UserParameter script (with item trapper on the server) and on the other side to have them retrived for a list of disks which has been filled with a discovery rules.
Thank's a lot for any help.

[zunam44]

Found how to do

Hi, I found how to do what I wanted.

- First I defined a discovery rule named 'disk.discovery'.

- The UserParameter script ‘disk_discovery.sh’ on the client returns something like
{"data":[
{"{#DDNAME}":"hdisk0"},
{"{#DDNAME}":"hdisk1"},
{"{#DDNAME}":"hdisk2"},
{"{#DDNAME}":"hdisk3"}
]}

- Then, I defined 2 "zabbix trapper" item prototypes
io.readsvr[{#DDNAME}]
io.writesvr[{#DDNAME}]

- I defined a "zabbix active" item prototype named iostat[{#DDNAME}] item which point on a UserParameter C program that takes a disk name as input and return 2 values: the disk read service time and the disk write service time. Then each value is sent back to the appropriate “trapper item” prototype via the zabbix_send command.