How do use abschange ITEM?

[visionbix]

Hi, all!
How do I use abschange item expression?
Can you get me any example?
thanks!

[bee]

abschange and others "change" key

Hi,
could somebody give more explanation on trigger implementation of "difference" in ZABBIX 1.4.5?

Real world case:
I'm monitoring physicalDisk of my server (By SNMP Agent Method) which have possibillity values as follow:
1 - DiskReady
2 - DiskOffline
4 - Rebuild
7 - Degraded
9 - Failed

My Needs:
I would like to have email alert for every value changing.

What i did?
I'm creating a trigger called "PhysicalDisk Check" using below expression:

	{ZBXTEST:arrayDiskState.1.last(0)}#1

And create action condition as follow:

Host group = "ZBXTEST"
Trigger description like "PhysicalDisk"
Trigger value = "TRUE"

It's worked for every physicaldisk failed, but after state return to normal nobody knows it since no alert.

Now the question is:
What is fit trigger for my need based on above scenario? Is "abschange()" an answer? if yes, what is exact implementation of it? This kind of triggers are missing from current doc 1.4

Any comment are appreciate!

Thanks,
BEE

[Alexei]

I believe this is what you need:

{ZBXTEST:arrayDiskState.1.last(0)}#{ZBXTEST:arrayD iskState.1.prev(0)}

[Alexei]

Hmm, I think this looks better:

{ZBXTEST:arrayDiskState.1.change(0)}#0

[scalft]

Also, create and additional action for TRIGGER VALUE=FALSE to send a recovered message.

Something link this

Host group = "Linux Servers"
Trigger severity >= "High"
Trigger value = "FALSE"

[bee]

Hi Alexei,
thanks for your response, i'll try it.
It would be nice to see more triggers examples on next doc release.

BEE

[ngarnier]

What difference between "abschange" and "change" ? Is someone have example ?

Thanks.